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Multi-layer cold-rolled composite plate process

A composite plate and process technology, applied in manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of poor material uniformity, low composite success rate, complicated processes, etc., and achieve low cost, reliable composite, and uniform material. good effect

Active Publication Date: 2022-04-22
杨剑峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problems of low compounding success rate, poor material uniformity and complicated process in the existing clad plate process, it is necessary to design a multi-layer cold-rolled clad plate process

Method used

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  • Multi-layer cold-rolled composite plate process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Multi-layer cold-rolled clad plate process, the base material and the cladding material are combined into a bimetallic three-layer cold-rolled clad plate by cold rolling, wherein the base material is made of ordinary carbon steel plate Q235, and the upper and lower cladding materials are made of stainless steel 304. The process steps are:

[0038] (1) Scrub the surface of the base material and cladding material with lye, and polish the surface;

[0039] (2) The base material and the cladding material are cold-rolled and compounded through a maximum rolling force of 2,500 tons and a maximum reduction rate of 70%;

[0040] (3) The semi-finished product after cold rolling and compounding enters the annealing furnace for diffusion annealing. The annealing temperature is 1000°C and the diffusion time is 4 minutes;

[0041] (4) After reversible finish rolling treatment, leveling and straightening treatment to the finished product.

Embodiment 2

[0042] Example 2: Multi-layer cold-rolled composite plate process, the base material and cladding material are combined into a double-layer metal cold-rolled clad plate by cold rolling, wherein the base material is made of ordinary carbon steel plate SPHC, and the cladding material is made of titanium plate Ti1. The steps are:

[0043] (1) Surface pickling and surface grinding are carried out on the surface of the base material and cladding material;

[0044] (2) The base material and the cladding material are cold-rolled and compounded through a maximum rolling force of 3,000 tons and a maximum reduction rate of 80%;

[0045] (3) The semi-finished product after cold rolling and compounding enters the annealing furnace for diffusion annealing, the annealing temperature is 1100 °C, and the diffusion time is 5 min;

[0046] (4) After reversible finish rolling treatment, cross cutting and slitting treatment to finished product.

Embodiment 3

[0047] Example 3: multi-layer cold-rolled composite board process, the base material and the cladding material are combined into a three-layer three-metal cold-rolled clad board by cold rolling, wherein the base material is made of ordinary carbon steel plate Q245, and the cladding material is made of T2 copper. The steps are:

[0048](1) Scrub the surface of the base material and cladding material with lye, and polish the surface;

[0049] (2) The base material and the cladding material are cold-rolled and compounded by a maximum rolling force of 2,800 tons and a maximum reduction rate of 75%;

[0050] (3) The semi-finished product after cold rolling and compounding enters the annealing furnace for diffusion annealing, the annealing temperature is 1080°C, and the diffusion time is 3 min;

[0051] (4) After reversible finish rolling treatment, cross cutting and slitting treatment to finished product.

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Abstract

The invention discloses a multi-layer cold-rolled composite board process, which relates to the field of cold-rolled composite technology. It is composed of the base material and the cladding material through cold rolling. The steps are: surface treatment of the base material and cladding material, cold rolling and compounding with large rolling force and large reduction rate, and the semi-finished product after compounding enters the annealing process. Diffusion annealing is carried out in the furnace, and then the surface is further processed. The core process of cold-rolled composite plate rolling requires a deformation rate during the composite process. In order to ensure the mechanical fit between the base material and the cladding material, the rolling force and reduction rate must be large enough and completed at one time; at the same time, it is required to maintain a certain pressure during rolling. Time, to avoid deformation and rebound due to short interaction time, reduce the bonding rate of base material and cladding material; after cold rolling and compounding, the semi-finished product enters the annealing furnace for diffusion annealing to obtain a stable composite plate with a uniform bonding layer. The process of the invention has continuous industrial production, good bonding uniformity of various materials, controllable bonding thickness of base material and cladding material, and high compounding success rate.

Description

technical field [0001] The invention relates to the field of cold-rolled composite technology, in particular to a multi-layer cold-rolled composite board process. Background technique [0002] At present, the commonly used clad plate processes on the market include: hot rolling clad, explosive clad, electroplating and other methods. Cold rolled clad is a composite processing method developed on the basis of hot rolled clad. Compared with hot rolled clad, due to rolling The low recombination temperature can avoid the phase transition, microstructure change and formation of brittle intermetallic compounds that are not conducive to the combination of metal materials. The thickness ratio of the cold-rolled composite material is uniform, the joint surface is flat without waves, and the product performance is stable. Cold-rolled compounding can be carried out on a single sheet, or it can be rolled into coils for easy automation, which is beneficial to stable quality and high yiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/38B21B47/00B21C37/02
CPCB21B1/38B21B47/00B21C37/02B21B2001/386
Inventor 戴燕红
Owner 杨剑峰
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