Phosphor bronze plate has very good production and processing performance, and is often used in drilling production and processing into various spare parts products. Among them, the most widely used raw material of phosphor bronze plate in drilling production and processing is Pb-containing phosphor bronze plate (H59-1, etc. model phosphor bronze plate). Phosphor bronze plate with lead content has high-quality organic chemistry, physics, structural mechanics and easy-cutting properties, and is a more commonly used alloy copper raw material. According to the incomplete statistical analysis of the published data and information, the total output of lead-phosphor bronze plates in my country is about 2 million tons at this stage, which are mainly used in electronic devices, household appliances, hardware locks, connectors, software plumbing installation oil circuit boards, Smart water meters, flanges, and children's toys.
The principle of easy cutting of lead phosphor bronze plate: During the production process, when the raw material of lead phosphor bronze plate is drilled and processed, the diffuse Pb (lead) particles are easy to crack and cause cutting cracking, which in turn acts as slag and reduces viscosity. Adhesion and welding and their effectiveness in increasing cutting throughput. Due to the low melting point of lead particles in the raw material, when drilling, the contact part of the wound and the chip melts instantly when heated, which is conducive to changing the appearance of drilling and has a moisturizing effect.
According to the principle of easy-cutting performance of lead phosphor bronze plate, the elements that are beneficial to improving the drilling performance of alloy copper are mainly divided into three types according to the way they exist in alloy copper: the first type, a small amount of solid solution In alloy copper, and with copper to produce eutectic elements (such as: Pb, Bi, Ce, Te); the second, insoluble in alloy copper, but with copper to produce chemical substances (such as: S, O these); the third, a part of solid solution alloy copper, also with copper to produce chemical elements (such as: P, Si, etc.). Adding different elements will improve the production and processing properties, physics, and organic chemistry of copper alloys to different levels.
Nowadays, because the control of lead content is becoming more and more stringent, various countries will conduct scientific research on new lead-free, heavy-metal-free, free-cutting phosphor bronze plates to replace lead phosphor bronze plates, and many scientific research results have already been obtained.
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