Using physical principles, the purity of thick-walled aluminum bronze can be measured, the volume and mass of the sample can be measured, and the proportion of copper in bronze can be calculated based on the density of copper and zinc.
A multi-component alloy made by adding other alloying elements to ordinary bronze is called bronze. The elements that are often added are lead, tin and aluminum, so it can be called lead bronze, tin bronze and aluminum bronze. The purpose of adding alloying elements. The main purpose is to improve the tensile strength and improve the manufacturability code: “H mainly adds element symbols (except zinc), and the mass fraction of copper mainly adds the mass fraction of elements and the mass fraction of other elements.” For example, HPb59-1 represents a lead bronze , containing 59% copper, 1% lead, and the rest zinc.
The performance of bronze is between H68 and H62, and the price is cheaper than H68. It has good mechanical properties, high strength and plasticity, can well withstand hot and cold pressure processing, and has a tendency to corrosion cracking. H65 bronze is used in the manufacture of hardware, daily necessities, screws and other parts.
Copper bushings, also known as copper bushings, come in many types, including machine copper rollers and copper bearings. It is used in various light industrial, large and heavy machinery and is an important part of machinery. This product has the function of traditional tin bronze bearing. It is made of electrolytic copper as raw material, adding various trace metal elements, sintering at high temperature and pneumatic centrifugal casting. It has high hardness, excellent wear resistance, less seizure, good casting and cutting properties, and good corrosion resistance in atmospheric and fresh water. In the absence of lubricants and the use of water lubricants, it has good sliding and self-lubricating properties, easy cutting, poor casting properties, and good resistance to dilute sulfuric acid corrosion. Structural parts for general purposes, simple castings for ships and instruments, such as sleeves, bushings, bearing bushes, sliders, etc.
High hardness, excellent wear resistance, not easy to cause seizure, good casting performance and cutting performance, and good corrosion resistance in the atmosphere and fresh water.
Post time: Jul-22-2022