high tensile strength and low cost rate steel clad copper clad steel with high performance cost ratio
and high extensibility
A copper-steel composite material with good elongation, high
bonding strength, low resistivity, high tensile strength and low
cost is provided. A copper-steel-copper composite material is
disclosed. Its chemical composition proportion is 5-20% of copper
and 80-95% of steel, and its structure is composed of copper and
steel. The invention also discloses the preparation method of
copper-steel composite material. The preparation steps are as
follows: after surface treatment, copper and steel are rolled into
high-precision steel strip and high-precision copper strip by cold
rolling mill; after surface cleaning, surface residues are removed
and degreased; high-precision copper-steel composite strip is
rolled by cold rolling mill; and copper-steel composite strip is
annealed at 650-850 C in vacuum furnace. In 1-4 hours, the
structural molecules of the composite layer of two kinds of metal
materials are melted, and then cooled to room temperature in vacuum
furnace; the two kinds of strips are compounded to make the strips
compounded into one and finish rolling; the composite materials are
smoothed and polished, and the strips are packed after shearing
according to the requirements of users.
Advantages:
Brass Steel Composte Strip is new kind of high-new composite
bimetal material. It extracts advantages from copper and steel, and
combines all advantages perfectly. The new bimetal material owns
properties as following:
1. Good Conductivity
2. Good corrosion resistance
3. High strength
4. Good formability
5. Good extension
6. same appearance
6. Lower cost
Parameters:
| Clad material | Steel | Steel | Steel |
| Copper | Copper | Copper |
| Steel | Steel | Steel |
| Thickness(mm) | 0.01-4.0 | 0.04-4.0 | 0.01-4.0 |
| Width(mm) | 5.0-1500 | 5.0-1500 | 5.0-1500 |
| Tensile strength(MPa) | 260-320 | 480-580 | 480-580 |
| Yield strength(MPa) | 200-260 | 300-380 | 300-380 |
| Elongation(%) | ≥37 | ≥15 | ≥15 |
Application:
1. Military industry: Steel clad copper clad steel is used to
replace the shell made of traditional steel and copper, which not
only guarantees the original performance, but also has the
characteristics of corrosion resistance and good surface
lubrication.
2. Electronic industry: There are many gaskets in electronic
components, which require strong and thin. Steel clad copper clad
steel can meet various innovative design requirements.
3. Cookware industry: In the manufacture of kitchen utensils, a lot
of extrusion deformation is needed. Steel clad copper clad steel
has good strength and ductility, which greatly improves the
processing efficiency of products.
