quality environmental and constant temperature square lead-free dip solder pot

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  • dip solder pot, dip solder pot Suppliers and Manufacturers ...

    quality environmental and constant temperature square lead-free dip solder pot. US 120.00 Set. 1 Set (Min. Order) 4 YRS Wenzhou Zhengbang Electronic Equipment Co., Ltd. 93.7%. 4.9 (8) 'Customer service' 'Helpful supplier' Contact Supplier. 1/6. High Quality Leadfree Mini Wave Solder Bath Square Dip Soldering Pot for CPB.

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  • lead free solder pot, lead free solder pot Suppliers and ...

    1,864 lead free solder pot products are offered for sale by suppliers on Alibaba.com, of which other welding & soldering supplies accounts for 8%, desoldering stations accounts for 1%, and soldering stations accounts for 1%. A wide variety of lead free solder pot options are available to you, There are 289 suppliers who sells lead free solder ...

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  • melting solder pot, melting solder pot Suppliers and ...

    WD602 soldering pot lead free with 4 push wheel 1,Place of Origin: China (Mainland) 2,Brand Name: WILLDONE 3,Model Number: WD602 4,Rated power: 2000W 5,Temperature range: 0-400℃ 6,Extemal dimension: 410Lx310Wx680Hmm 7,Tin pot size: 350x250x50mm 8,Melting tin quantity:31.8kg Features 1, WD series lead-free solder pot.

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  • lead free solder bath, lead free solder bath Suppliers and ...

    Alibaba.com offers 1,571 lead free solder bath products. A wide variety of lead free solder bath options are available to you, such as current, type, and voltage.

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  • Comparison between Lead Soldering and Lead-Free

    Since lead-free eutectic solder (SAC387) features a 34°C higher melting point than traditional lead eutectic solder (Sn37Pb), the consequence is: 1).The rising temperature afterwards leads solder to be easily oxidized with chemical compound quickly growing between metals. 2).Some components such as those with plastic package or electrolytic ...

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  • HAKKO

    If a digital soldering pot is required, see the HAKKO FX-301B. Option Special Coating Solder Pot: The special coating is for getting a long life by preventing the corrosion of the solder pot. We confirmed that the special coating solder pot had five times longer life than the standard one by our anti-corrosion test. It effects on both lead-free ...

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  • Self Qualification Results - NXP

    2016-2-22 · In order to validate assembly quality and reliabili ty, a self-qualification pr ogram has been performed for above mentioned packages. The results of this qualification demonstrate that Philips Semiconductors can achieve distinctive assembly quality with equal or better product quality and reliability when compared to the lead-tin

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  • Influence of benzotriazole on electroplated Cu films and ...

    2019-11-13 · The commercial SAC305 welding rod was used as the solder. The welding rod was placed in a lead-free solder pot. The temperature of the lead-free solder pot was set to 260 °C, which ensured that the welding rod could be completely melted. Before dip soldering, the samples were immersed in rosin mildly activated (RMA) non-clean flux.

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  • Solder Pad - an overview

    Appropriate thickness, in this case, is ~2 and ~4 µm for lead-bearing and for lead-free solder alloys.The IML is thicker for lead-free alloys because of the high tin content and of the high value of the Cu-Sn interdiffusion coefficient. If the surface finish of the PWB is the so-called ENIG (electroless nickel and immersion gold), the main composition of the IML will be Ni 3 Sn 4, and the ...

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  • Case Study SAC SnCu FINAL. - Global Leader in Solder

    2016-5-16 · Wave solder process The wave solder was lead-free capable and after loading with K100 lead-free solder it was analyzed to verify the elemental concentrations but also for the presence of iron or lead. The analysis revealed it was acceptable. Solder analysis is recommended with lead-free wave soldering at least every 5000 board builds.

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  • Technical Data Sheet LOCTITE 3621 - Henkel

    2021-5-11 · Test Temperature 85 °C Test Duration 1000 hours Inital Comb Resistance @ 23 °C, 50% R.H., Ω 9×1012 Final Comb Resistance @ 85 °C, 85% R.H., Ω 375×106 Final Comb Resistance @ 28 °C, 50% R.H., Ω 3.5×1012 Resistance to Lead Free Solder LOCTITE 3621 can be used in lead free wave solder with both water based and alcohol based fluxes

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  • Self Qualification Results - NXP

    2016-2-22 · In order to validate assembly quality and reliabili ty, a self-qualification pr ogram has been performed for above mentioned packages. The results of this qualification demonstrate that Philips Semiconductors can achieve distinctive assembly quality with equal or better product quality and reliability when compared to the lead-tin

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  • Surface Mount Switch Products - NKK Switches

    2021-8-23 · Environmentally friendly, lead-free component construction. Components and packaging materials meet RoHS directive restricting use of hazardous mounting substances such as lead and cadmium..244' (6.2mm) square body allows compact mounting. Heat-resistant resin body meets lead-free solder processing requirements and UL flammability rating of 94V-0.

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  • CFD modeling of pin shape effects on capillary flow during ...

    2014-5-1 · Although lead-free solder is environment-friendly, time is required for the transition from leaded to lead-free solder material in the industry. Lead-free wave soldering process in the industrial process line was carried out and studied by Forsten et al. [6] , who concluded that lead-free wave soldering is feasible.

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  • Physical & Mechanical Environmental Test

    The Dip & Look is a traditional method for evaluating solderability of semiconductor components. The lead and terminal are dipped into the solder and the soldering state is inspected. To simulate the storage condition of a product for a long time, a preconditioning process (Dry steam at 93 ℃ or BAKE at 150 ℃ for 16 hours) is performed.

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  • Influence of benzotriazole on electroplated Cu films and ...

    2019-11-13 · The commercial SAC305 welding rod was used as the solder. The welding rod was placed in a lead-free solder pot. The temperature of the lead-free solder pot was set to 260 °C, which ensured that the welding rod could be completely melted. Before dip soldering, the samples were immersed in rosin mildly activated (RMA) non-clean flux.

    Get Price
  • Semiconductor Die Bonding - idc-online.com

    2019-2-4 · Materials Uniform consistency, free of lumps and foreign materials. Filler type to be specified. Pot life ≥1 hour Shelf life ≥12 months at −40°C for 1-component ≥12 months at 25°C for 2-component Adhesive cure To be stated, and kept the same for all tests Thermal stability ≤1% weight loss at 300°C

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  • ECOSELECT 1 - Selective Soldering - Kurtz Ersa

    Highlights Selective Soldering System Ersa ECOSELECT 1. Compact Batch-type system with small footprint. Ersa CAD Software. Up to 2 solder bath to increase throughput. Use of mini-wave, mini-dip wave and area-soldering nozzle possible. Maintenance free electromagnetic solder pump drive. Drop-jet fluxer with integrated monitoring.

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  • Small placement machine_ Line table_Reflow solder ...

    Wenzhou Zhengbang Electronic Equipment Co., Ltd. Established in 2006, Wenzhou Zhengbang Electronic Equipment Co., Ltd is a professional manufacturer of machine and assembly line accessories as the THT welding equipment series, SMT welding equipment series and Assembly line series. It serves more than two hundred thoudsand customers. Our products have been sold well in China and all over …

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  • Case Study SAC SnCu FINAL. - Global Leader in Solder

    2016-5-16 · Wave solder process The wave solder was lead-free capable and after loading with K100 lead-free solder it was analyzed to verify the elemental concentrations but also for the presence of iron or lead. The analysis revealed it was acceptable. Solder analysis is recommended with lead-free wave soldering at least every 5000 board builds.

    Get Price
  • CFD modeling of pin shape effects on capillary flow during ...

    2014-5-1 · Although lead-free solder is environment-friendly, time is required for the transition from leaded to lead-free solder material in the industry. Lead-free wave soldering process in the industrial process line was carried out and studied by Forsten et al. [6] , who concluded that lead-free wave soldering is feasible.

    Get Price
  • Yescom 500g Capacity 50mm Solder Pot Soldering Desoldering ...

    Brand new lead-free soldering pot is made of titanium, which features high strength and outstanding thermostability. It functions temperature control and can be easily used and repaired. It also has excellent heating and high molten tin efficiency. Specifications: - Pot Solder Capacity: 500g 17.6oz - …

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  • ECOSELECT 1 - Selective Soldering - Kurtz Ersa

    Highlights Selective Soldering System Ersa ECOSELECT 1. Compact Batch-type system with small footprint. Ersa CAD Software. Up to 2 solder bath to increase throughput. Use of mini-wave, mini-dip wave and area-soldering nozzle possible. Maintenance free electromagnetic solder pump drive. Drop-jet fluxer with integrated monitoring.

    Get Price
  • Semiconductor Die Bonding - idc-online.com

    2019-2-4 · Materials Uniform consistency, free of lumps and foreign materials. Filler type to be specified. Pot life ≥1 hour Shelf life ≥12 months at −40°C for 1-component ≥12 months at 25°C for 2-component Adhesive cure To be stated, and kept the same for all tests Thermal stability ≤1% weight loss at 300°C

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  • An alternative thermal approach to evaluate the ...

    2016-8-25 · 1. Introduction. According to Zeng et al. even though Zn-Sn alloys revealed great potential as high temperature lead free solders for die-attachment applications, further development is required. As a matter of fact, Musa and coauthors stated that characteristics of the Zn-Sn alloys such as mechanical properties, wettability and corrosion resistance still deserve attention in future studies.

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  • Support Center

    You can solder Coilcraft RoHS parts using lead-based solders. As with soldering with lead-free solder, many factors influence solder wetting: solder amount, flux, temperature limit of each soldered component, heat transfer characteristics of the circuit board and component materials, and the layout of all components. Details

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  • Amazon.com: STA-BRITE SBSK Silver Solder 3/64 1/2 oz ...

    Features: Five times stronger than ordinary solder with tensile strength of 10,000-25,000 pounds per square inch. Will stretch under high pressure, but not break under constant stress and is vibration-resistant. Conducts electricity better. Lead free making it environmentally friendly Melts and flows at 430ÃF, providing strength without ...

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  • Mohd Sharizal ABDUL AZIZ

    The current study shows the used of rheological measurement to get lead-free solder paste SAC105 type 3 viscosity data to be used in numerical measurement. A parallelplate viscometer is used for ...

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  • Enamel furnace Manufacturers & Suppliers, China enamel ...

    enamel furnace manufacturer/supplier, China enamel furnace manufacturer & factory list, find qualified Chinese enamel furnace manufacturers, suppliers, factories, exporters & …

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  • Yescom 500g Capacity 50mm Solder Pot Soldering

    Brand new lead-free soldering pot is made of titanium, which features high strength and outstanding thermostability. It functions temperature control and can be easily used and repaired. It also has excellent heating and high molten tin efficiency. Specifications: - Pot Solder Capacity: 500g 17.6oz - …

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  • Self Qualification Results - NXP

    2016-2-22 · assembly quality with equal or better product quality and reliability when compared to the lead-tin plated versions of these products. With the introduction of NiPdAu as lead -free solution, the Bill of Materials (BoM) of the mentioned packages is fully compliant to the RoHS legislation requirements.

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  • Amazon.com: STA-BRITE SBSK Silver Solder 3/64 1/2 oz ...

    Features: Five times stronger than ordinary solder with tensile strength of 10,000-25,000 pounds per square inch. Will stretch under high pressure, but not break under constant stress and is vibration-resistant. Conducts electricity better. Lead free making it environmentally friendly Melts and flows at 430ÃF, providing strength without ...

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  • DIY Hakko 907 Digital Soldering Station - Share Project ...

    2021-2-24 · Selectable waves are sine, triangular, saw, square, and white noise, in any combination.The oscillator pitch can be controlled by MIDI or voltage.In the followings the functions of potentiometers, buttons and incoming MIDI messages.PotentiometersThe first potentiometer POT_A0 controls the relative detuning of wave two.The second potentiometer ...

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  • Surface Preparation of Metals Prior to Plating

    2019-10-16 · 2. Forming lubricants: a) Sulfonated or chlorinated types as applied to metals such as brass.b) Lard oil – as used in forming aluminum and as a protective coating. 3. Drawing Compounds – lubricants containing molybdenum disulfide or powdered graphite and chlorinated oils. 4. Rust preventative oils – high viscosity oils containing sulfonated soaps or organic corrosion inhibitors.

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  • Basic deposition methods of thin films** - ScienceDirect

    It found applications in high quality mirrors, lead free solder, and low melting alloys. Its alloy with gallium and tin is a good replacement to mercury in thermometers and liquid mirror telescopes, as it's in liquid form even at the temperature of -19°C.Many attempts have been made to synthesize the transparent conducting oxide thin film of ...

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  • Surface Mount Technology - an overview

    James J. Licari, Dale W. Swanson, in Adhesives Technology for Electronic Applications (Second Edition), 2011 1.2.2 Surface-mount technology. Surface-mount technology (SMT) is basically a component assembly technology related to printed-circuit boards wherein the components are attached and connected on the surface of the board using batch solder-reflow processes.

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  • 0532540810 Molex

    Order today, ships today. 0532540810 – Connector Header Through Hole, Right Angle 8 position 0.079' (2.00mm) from Molex. Pricing and Availability on millions of …

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  • The Basics of Chip on Board (COB) LEDs

    2016-8-3 · With an input voltage range of 90 to 305 V AC, the driver is capable of supplying up to 1.05 A to the COB LED (which, in this case, has a test current of 1.05 A and a maximum rating of 1.38 A) and will not be damaged by over-driving it.Additionally, when drivers are run closer to their maximum capacity (in this example 39.48 W out of a 42 W maximum), they operate with a higher efficiency ...

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  • Conformal Coating in Nitrogen Environment

    Nitrogen (N2) is used inthis process for the following reasons: A. N2 is low in moisture and if Compressed Air is used and thesystem is not maintained properly, moisture will be present and this will causeissues in the curing of the conformal coating on the parts, such as pooradhesion, moisture entrapment, etc. B. Compressed air can contain ...

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  • Power Connectors – Molex │ DigiKey

    Withstand infra red (IR) and wave lead-free solder processing per SMES-152 Molex specification Super Sabre Power Connectors Delivering 34.0 A per blade and withstanding up to +125°C operating temperatures, Super Sabre Power Connectors use proven technology for long-term performance and reliability in virtually every industry.

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  • The “popcorn effect” of plastic encapsulated ...

    Diffusivity and solubility property data for common packaging materials are given as a function of temperature from 23 to 210°C. Solder pot dip tests performed at 230°C indicate that popcorn ...

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  • Capillary Action and Water - USGS

    2019-6-28 · Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension. Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules ...

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  • 9A0812H4021 Sanyo Denki America Inc.

    Order today, ships today. 9A0812H4021 – Fan Tubeaxial 12VDC Square - 80mm L x 80mm H Ball 2 Wire Leads from Sanyo Denki America Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

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  • Power Inductors

    Coilcraft power inductors offer different structure types, sizes and inductance values for a wide range of power converter applications.

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  • MIL-STD-202 » Delserro Engineering Solutions

    MIL-STD-202 establishes uniform methods for testing electronic and electrical component parts, including basic environmental tests to determine resistance to deleterious effects of natural elements and conditions surrounding military operations, and physical and electrical tests. For the purpose of this standard, the term “component parts ...

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  • Fiber Laser Sources & Solutions

    IPG Photonics is the leading developer and manufacturer of high-performance fiber lasers and amplifiers for diverse applications in numerous markets. IPG Photonics' diverse lines of low, medium and high-power lasers and amplifiers are used in materials processing, communications, entertainment, medical, biotechnology, scientific and advanced applications.

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  • Fuses - Types of Fuses - Littelfuse

    The Littelfuse POWR-PRO CCMR series fuses are best used for protection of small motors, while the Littelfuse KLDR series fuses provide optimal protection for control power transformers and similar devices. For questions about product applications, call …

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  • Conformal Coating in Nitrogen Environment

    Nitrogen (N2) is used inthis process for the following reasons: A. N2 is low in moisture and if Compressed Air is used and thesystem is not maintained properly, moisture will be present and this will causeissues in the curing of the conformal coating on the parts, such as pooradhesion, moisture entrapment, etc. B. Compressed air can contain ...

    Get Price
  • Commodore 64 PLA replacement - Share Project - PCBWay

    2019-12-31 · Selectable waves are sine, triangular, saw, square, and white noise, in any combination.The oscillator pitch can be controlled by MIDI or voltage.In the followings the functions of potentiometers, buttons and incoming MIDI messages.PotentiometersThe first potentiometer POT_A0 controls the relative detuning of wave two.The second potentiometer ...

    Get Price
  • Capillary Action and Water - USGS

    2019-6-28 · Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension. Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules ...

    Get Price
  • PCB Solder Mask Design Basics - Standards, Materials and ...

    The test methods and conditions in IPC-SM-840C are based on end use and environmental reliability requirements for two classes 1 of user: 1 Older IPC documents refer to Class 1, Class 2, and Class 3. For all practical purposes there is no Class 1 solder …

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  • Fuses - Types of Fuses - Littelfuse

    The Littelfuse POWR-PRO CCMR series fuses are best used for protection of small motors, while the Littelfuse KLDR series fuses provide optimal protection for control power transformers and similar devices. For questions about product applications, call …

    Get Price
  • The “popcorn effect” of plastic encapsulated ...

    Diffusivity and solubility property data for common packaging materials are given as a function of temperature from 23 to 210°C. Solder pot dip tests performed at 230°C indicate that popcorn ...

    Get Price
  • Your Partner in Smart Solutions

    CTS is a leading designer and manufacturer of sensors, actuators and electronic components for OEMs in the aerospace, communications, defense, industrial, information technology, medical, and transportation markets. CTS manufactures products in North America, Europe and Asia.

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  • Power Inductors

    Coilcraft power inductors offer different structure types, sizes and inductance values for a wide range of power converter applications.

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  • Taiwantrade

    2021-8-23 · Taiwantrade is a Taiwan B2B e-marketplace to help global buyers find Taiwan products, manufacturers, suppliers, exporters, wholesalers, trade leads and information on trade shows.

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  • MIL-STD-202 » Delserro Engineering Solutions

    MIL-STD-202 establishes uniform methods for testing electronic and electrical component parts, including basic environmental tests to determine resistance to deleterious effects of natural elements and conditions surrounding military operations, and physical and electrical tests. For the purpose of this standard, the term “component parts ...

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  • Synth & Eurorack Parts DIY

    2021-8-20 · RoHS & Lead-free; 1. 35. Qty: * Add to cart. ... The WQP-WQP518MA-BM is the new improved version of the WQP-PJ301BM featuring Qingpu’s rugged square based bushing. The sleeve connection is through the outer bracket that snaps into place on the pcb allowing for easy construction and panel fitting. ... A true FET input stage is incorporated to ...

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  • Synth & Eurorack Parts DIY

    2021-8-22 · Audio taper, vertical mount, Alpha pots with a 6.35mm shaft diameter featuring 11 detents across the rotation. The 11 detent versions are useful for builds where 1-10 settings are commonly used or if the pot is used as a rotary switch along with a microcontroller. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects.

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  • Omega Engineering

    Shop for sensing, monitoring and control solutions for temperature, pressure, load strain, flow, level, pH, and more with expert support. text.skipToContent text.skipToNavigation Call us at 1-888-826-6342

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  • Synth & Eurorack Parts DIY

    2021-8-19 · Our Synth & Eurorack Parts DIY category is a curated list of items that are commonly found in synth/eurorack projects. The items and filters here do not represent our full lineup of parts. If you don't see what you are looking for, check out our main categories or send us a …

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  • Die Casting Process, Defects, Design

    Die casting is a manufacturing process that can produce geometrically complex metal parts through the use of reusable molds, called dies. The die casting process involves the use of a furnace, metal, die casting machine, and die. The metal, typically a non …

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  • 4 Types of Metal That Are Corrosion Resistant or Don't Rust

    2018-10-3 · Copper oxidizes over time to form a green patina, which actually protects the metal from further corrosion. Bronze is a mixture of copper and tin, along with small amounts of other elements, and is naturally much more resistant to corrosion than copper. Brass is an alloy of copper, zinc, and other elements, which also resists corrosion.

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  • Low Voltage Temperature Sensors Data Sheet

    2017-3-22 · outputs of these temperature sensors can be converted to a frequency using the AD654. The output signal of the AD654 is a square wave that is proportional to the dc input voltage across Pin 4 and Pin 3. The transfer equation of the circuit is given by T T 10 ( ) TPM OFFSET OUT R C V V f TMP3x +V S GND 6 4 2 3 8 7 5 1 AD654 V OUT

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  • Quality Inspection for Solar Modules - Raw Material ...

    Quality Inspection for Solar Modules - Raw Material, Manufacturing & Lab Tests (15.04.18) The presentation is a detailed study on the following: a) Impact of solar module component on reliability. b) Raw Material - Quality Assurance. c) Manufacturing Process - Quality …

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  • Power LED Driver Circuit - Electronics DIY - Quality ...

    The circuit is a constant-current source, the value of R3 sets the current. Calculations: - LED current is set by R3, it is approximately equal to: 0.5 R3. - R3 power: the power dissipated by the resistor is approximately: 0.25 R3. I set the LED current to 225mA …

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  • Lab 6 - Op Amps I

    2014-7-1 · Problem 6.12 - Op Amp Current Source. Op amps can be used to make excellent voltage-controlled current sources. In the circuit at right, set the potentiometer output to about , and measure the current through a load resistor of with a multimeter. …

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  • So, You’re Scared Of Surface Mount

    2016-3-17 · So, You’re Scared Of Surface Mount. If you are lucky enough to encounter a piece of homebrew electronics from the 1950s, the chances are that under the …

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  • AD623 Datasheet and Product Info

    The AD623 is an integrated, single- or dual-supply instrumentation amplifier that delivers rail-to-rail output swing using supply voltages from 2.7 V to 12 V. The AD623 offers user flexibility by allowing single gain set resistor programming and by conforming to the 8-lead industry standard pinout configuration. With no external resistor, the AD623

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  • EIS

    Shop EIS and earn FREE prizes! From August 1st, 2021 through August 31st, 2021, place online purchases at EIS-Inc.com adding up to 10,000 USD or more and earn a FREE Echo Dot (4th Gen) + Sengled Bluetooth Color Bulb, place online purchases adding up to 25,000 USD or more and earn a FREE Fire 10 Tablet! Earn both prizes at up to 2 spending levels!

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  • Surface Finishes on Printed Circuit Boards with Mike ...

    2018-7-3 · Sure well, here in North America and primarily for the military, we're still using - at least 50 or so percent of the industry - uses hot-air solder leveling. Basically, you're taking that solder mask over the bare copper board, flexing it, cleaning the copper, and then dipping it into a molten solder pot …

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  • Engineering360 - Industrial Products & Supplier Catalog

    2021-2-1 · Engineering360 is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

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  • Review—Electrochemical Measurements in Molten Salt Systems ...

    2019-9-3 · The three electrode cell consists of a working electrode (WE), a counter electrode (CE), and a reference electrode (RE). In the simplest arrangement, these three electrodes are submerged in a common molten salt that serves as the electrolyte (EL). A potentiostat a is used to control and record the electrochemical measurements of interest.

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  • Power LED Driver Circuit - Electronics DIY - Quality ...

    The circuit is a constant-current source, the value of R3 sets the current. Calculations: - LED current is set by R3, it is approximately equal to: 0.5 R3. - R3 power: the power dissipated by the resistor is approximately: 0.25 R3. I set the LED current to 225mA …

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  • The emergence and prospects of deep-ultraviolet light ...

    2019-3-22 · Based on an analysis of the UVC LED reported in ref. 31, the injection, radiative, extraction and electrical efficiencies would be estimated to be around 80%, 50%, 16% and 64%, respectively. It is ...

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  • 4 Types of Metal That Are Corrosion Resistant or Don't Rust

    2018-10-3 · Copper oxidizes over time to form a green patina, which actually protects the metal from further corrosion. Bronze is a mixture of copper and tin, along with small amounts of other elements, and is naturally much more resistant to corrosion than copper. Brass is an alloy of copper, zinc, and other elements, which also resists corrosion.

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  • So, You’re Scared Of Surface Mount

    2016-3-17 · So, You’re Scared Of Surface Mount. If you are lucky enough to encounter a piece of homebrew electronics from the 1950s, the chances are that under the …

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  • How to Solder Aluminum: 13 Steps (with Pictures) - wikiHow

    2020-4-13 · Use your torch or soldering iron to heat the metal object adjacent to the join, starting at the lower end of the workpiece. A direct flame on the repair area is likely to overheat the solder …

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