T2 Red Tinned Copper Bus Bar / Copper Flat Bar 4.0 Mm Thickness

Properties of copper

1. General performance

Copper is a kind of relatively pure copper, which can be generally considered as pure copper. It has good conductivity and plasticity, but its strength and hardness are worse. Copper has excellent thermal conductivity, ductility and corrosion resistance. Trace impurities in copper have a serious impact on the conductivity and thermal conductivity of copper. Titanium, phosphorus, iron and silicon significantly reduce the conductivity, while cadmium and zinc have little effect. Sulphur, selenium and tellurium have little solid solubility in copper, and can form brittle compounds with copper, which have little effect on conductivity, but can reduce processing plasticity.

Copper has good corrosion resistance in atmosphere, sea water, some non-oxidizing acids (hydrochloric acid, dilute sulfuric acid), alkali, salt solution and a variety of organic acids (acetic acid, citric acid), and is used in chemical industry. In addition, copper has good weldability and can be processed into semi-finished products and finished products by cold and thermoplastic processing. In the 1970s, the output of copper exceeded that of other copper alloys.

2. physical property

Trace impurities in copper have a serious impact on the conductivity and thermal conductivity of copper. Titanium, phosphorus, iron and silicon significantly reduce the conductivity, while cadmium and zinc have little effect. Oxygen, sulphur, selenium and tellurium have little solid solubility in copper, and can form brittle compounds with copper, which have little effect on conductivity, but can reduce processing plasticity. When ordinary copper is heated in a reducing atmosphere containing hydrogen or carbon monoxide, hydrogen or carbon monoxide easily reacts with cuprous oxide (Cu2O) at grain boundaries to produce high pressure steam or carbon dioxide gas, which can cause copper to rupture. This phenomenon is often called "hydrogen disease" of copper. Oxygen is harmful to the weldability of copper. Bismuth or lead form eutectic with copper at low melting point, which makes copper brittle; while brittle bismuth distributes in thin film at grain boundary, which makes copper brittle. Phosphorus can significantly reduce the conductivity of copper, but it can improve the fluidity of copper liquid and weldability. Appropriate amounts of lead, tellurium and sulphur can improve the machinability. The room temperature tensile strength of annealed copper sheet is 22-25 kg/mm 2, the elongation is 45-50%, and the Brinell hardness (HB) is 35-45.

The thermal conductivity of pure copper is 386.4w/(m.k)

Tinned Copper Bus Bar Details

Tinned Copper Bus Bar Conventional Types and Sizes:

Guangzhou Baoge Machinery Manufacturing Co.,ltd established in 2001, locates in Huadu, Guangzhou city, GD province.China It covers an area of 3000 square meters and it has about 200 staffs.It is an hi-tech enterprise with research & development, production and sale, we have professional R&D, production teams with experienced management, we keep on technology innovation to fullfil customers' specific requirement.With our high quailt product and considerate pre-sale&after sale sevrice,we have gained positive feedback from our valuable customers from domestic and oversea.Our products have gained ISO9001,IATF16946 certificates

Our products 'category includes flexible copper/aluminium bus bar used in new energy line, copper / aluminium foil busbar, fabricated copper busbar, braid wire, copper earth wire/terminal,Copper/Alu. Busbar, copper/aluminium conductor as accessories used in switch and other equipments.
 

Our products are widely used in battery pack in new energy automobile car factory, TOSHIBA company, energy saving communication power supply cabinet factory, electricity and electric power engigeering, high-low voltage power distribution equipment, welding equipment company, electronic and electric appliance plants.

Our process equipments for flexible bus bar are imported from Germany,and automatic process equipments are famous brand in domestic, such as automatic welding, strong power and special welding, automatic induction welding and its accessories, also with series specialty inspection equipments.