Lead-free
environmentally friendly tin bars play a very important role in soldering work. Solder bars made of different alloy components also have different properties and uses.
(1) Pay attention to the height of the liquid level in the solder furnace, the tin inside should not be too much or too little, and the technicians should pay attention to reasonable control;
(2) The melting point of the lead-free environmentally friendly tin bar is very important. Attention should be paid to several commonly used melting points. The melting point of the tin bar is related to the working temperature, which is determined by the alloy composition itself;
(3) Use an environmentally friendly lead-free solder furnace. When using lead-free environmentally friendly tin bars, no matter whether it is a solder furnace or a solder flux, you must choose lead-free, so that it can meet environmental protection requirements, and do not mix with existing Use with lead stove;
(4) There are many types of lead-free environmentally friendly tin bars. It is necessary to find out which alloy composition you choose, such as: tin-copper alloy Sn99.3Cu0.7 or silver-containing 0.3 lead-free tin bar Sn99 .0Ag0.3Cu0.7 or high-temperature lead-free tin bars, etc., the properties and uses of different alloys will be different;
(5) Lead-free environmentally friendly tin bars are usually used together with flux. Therefore, attention should be paid to the selection of lead-free flux. Lead-free flux must be able to withstand high temperature conditions and have good activity. Lead flux, which can improve the welding efficiency to a certain extent in the lead-free environmental tin bar welding work.
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