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12

2021

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02

Precautions for welding temperature and storage of silver welding wire

Correct control of the welding temperature of the silver wire: During the welding process, select the diameter of the silver wire, multi-pin large-pitch installation devices, tinning and wires, etc.1.0 ~ 2.0mm:The time required for the large solder joint, the tin-plated layer and the shielding layer to contact each other and form the solder joint (ie, the residence time of the solder head at the solder joint or "soldering time"). should generally be controlled in1-5between seconds. Different kinds of electrodes have different functions. There are many kinds of welding rod, such as silversilver welding wireWelding wire, stainless steel welding wire, welding rod, etc. So we have to be careful in the process of selecting the electrode.

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So how do we choosesilver welding wireWhat about electrodes? Each electrode has its own characteristics, and we can choose the right electrode from its characteristics. Silver welding wire, in which the composition of silver is relatively high, silver is a relatively soft element, generally used in electronics, home appliances, hardware and other industries. If there are oil (paint), water, rust and other impurities. In the groove and surface of the weldment, the diameter of the silver wire should be approximately equal to the diameter of the direct welding pad.1/2. The general temperature is not higher than the melting point of the tin material itself38or100. When melted into the weld, defects such as pores, inclusions, slag inclusions and cracks will occur, which will bring hazards and hidden dangers to the welded joints. In vertical welding, arc welding from top to bottom is called downward vertical welding. Vertical welding of silver wire downward;CO2Down vertical welding, etc. In vertical welding, bottom-up arc welding is called upward vertical welding. So...How should silver welding wire be stored?

1.Storage location of silver electrode: the warehouse where silver electrode is stored should be in a dry and ventilated environment to avoid being affected with damp. Corrosive substances that are easily volatilized by water, acid, alkali and other liquids are rejected and should not coexist with these substances in the same warehouse. Welding rods should be placed on wooden pallets, not directly on the floor or near the wall.

2.When handling silver welding wire, be careful not to break the packaging, especially the inner packaging "heat shrinkable film". Open the silver electrode package and use it up as soon as possible (within a week).

3.Silver welding wire should be distributed according to the principle of "first in, first out" to minimize the inventory time of products. Store electrodes according to category and specification to prevent misuse.

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