Battery box in the punch contact with what material, specific point, do not answer me is iron or copper, I want to know what material is extremely model, thank you!

Phosphor bronze (phosphor bronze) (tin bronze) (tin-phosphor bronze) by the bronze add degassing agent phosphorus P content of 0.03 ~ 0.35%, tin content of 5 ~ 8%. And other trace elements such as iron Fe, zinc Zn and other components of ductility, fatigue resistance are good for electrical and mechanical materials, reliability is higher than the general copper alloy products.

Characteristics

Tin-phosphor bronze has higher corrosion resistance, wear resistance, impact does not spark. Used for medium-speed, heavy load bearings, the maximum working temperature of 250 ℃. With automatic self-aligning, insensitive to skew, shaft bearing force uniform bearing capacity, can be subject to radial load at the same time, self-lubricating without maintenance and other characteristics. Tin-phosphor bronze is a kind of alloy copper, with good electrical conductivity, not easy to heat, to ensure safety and strong fatigue resistance. Tin-phosphor bronze jack reeds hard-wired electrical structure, no rivets connected or frictionless contacts, can ensure good contact, good elasticity, dialing and inserting smooth. The alloy has excellent machinability and chip formation properties, which can quickly shorten parts processing time.

Grade: QSn6.5-0.1 Phosphor Bronze GB/T 4423-2007

QSn6.5-0.4 Tin Bronze GB/T 13808-2007

QSN7-0.2 GB/T 2059-2000