Wear-resistant copper gears, high lead large copper gears, environmentally friendly recyclable copper gears. Using excellent electrolytic copper as matrix, tin ingot and lead ingot are mixed according to the national standard proportion to form high wear-resistant self-lubricating copper alloy material. In the absence of lubricants and water lubricants, it exhibits excellent sliding and self-lubricating properties. Under the load of high-speed rotation and rocking motion, the impact load is up to40MPaIt shows excellent flexibility and is the first choice for medium and low speed operation machinery.
Product Name: copper gear
Material brand:ZQSn5-5-5
Casting mode: centrifugal casting
Product category: large copper gear, heavy gear
●Material name: cast copper alloy5-5-5Tin bronze
●Standard:GB/T 1176-1987
●Chemical composition:
CuThe rest
Sn：Four～Six
Zn：Four～Six
Pb：Four～Six
P：Less than 0.05 (impurity)
Ni：Less than 2.5 (Not included in the sum of impurities)
Al：Less than 0.01 (impurity)
Fe：Less than 0.3 (impurity)
Si：Less than 0.01 (impurity)
Sb：Less than 0.25 (impurity)
S：Less than 0.10 (impurity)Note: sum of impuritiesLess than 1
●Mechanical properties:
tensile strengthSigma B (MPa)：More than 200
Yield strengthSigma (MPa)：More than 90elongationDelta 5 (%)：More than 13hardness ：More than 590HB (reference value)
●Heat treatment specification: heating temperatureOne thousand one hundred and eighty-eight～One thousand two hundred and twentyCentigrade; pouring temperatureOne thousand one hundred and fifty～One thousand and two hundredCentigrade.
●Casting methods: sand casting and metal casting
