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Method for producing surface compound billet of cutter by horizontal electro-slag overlaying

A technology of surface composite and electroslag surfacing, which is applied in the direction of manufacturing tools, arc welding equipment, welding equipment, etc., can solve the problems of high surface treatment requirements, unsuitable composite steel, and unsatisfactory adhesion, so as to improve the comprehensive mechanical properties , low cost, and the effect of improving the use value

Inactive Publication Date: 2009-06-03
SHANGHAI JISI COMPOUND STEEL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of the rolling composite method are that the compression ratio is small, the adhesion is not ideal, the surface treatment requirements are high, and the yield is low.
This is not a big problem for the restoration of used modules, but not for the composite steel required by the knife and scissors industry

Method used

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  • Method for producing surface compound billet of cutter by horizontal electro-slag overlaying
  • Method for producing surface compound billet of cutter by horizontal electro-slag overlaying
  • Method for producing surface compound billet of cutter by horizontal electro-slag overlaying

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Embodiment Construction

[0020] Take Q235 plain carbon steel as the body steel and W18Crl4V1 or W6MO5Cr4V2 high-speed tool steel surface composite mechanical blade composite flat steel as an example:

[0021] The size of the body steel that needs electroslag surfacing is 70 X 140mm as shown in Figure 3, and the gap on one side can also be processed according to the process requirements. For example, the gap is trapezoidal, the upper bottom is 55mm, the lower bottom is 50mm, and the height is 25mm . The processed and cleaned body steel is placed horizontally on the working platform, fixed by four water-passing templates, and cooled by water. Three of the water-passing templates can be translated synchronously with the working platform, and the flat steel of high-speed steel is made into double-headed or triple-headed electrodes, connected in parallel, and slowly moved to the top of the main body steel to keep a certain distance between the electrodes and the surroundings. Putting in the electroslag li...

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Abstract

The preparation method for cutter surface complex billet in this invention belongs to level electro-slag surfacing technique. It has been used to renewing and repairing for crank axle, roller and mould of waste and old, but the complex steel used to cutter requires large overlay welding area, clear interface, even thickness and high adhesion. In this invention, put lowcarbon steel body on workbench horizontally with surface needed overlay welding upside; form one mould cavity by three composite mould plates, a fixed mould plate and part of steel body; the three composite mould plates links workbench to form mobile integer and translate with workbench synchronously; Use highcarbon blade steel as electrode that can cascade with multiple heads; dissolve the electro-slag power into liquid and decant cavity; the electrode fuses into metal liquid and is overlay welding evenly and continually on the steel body by adjust device; translate the workbench and expand the overlay welding layer to prepare two or multiple layers cutter billet with surface composite, then process to complex strip steel, flat material and plate material.

Description

technical field [0001] The invention relates to electroslag metallurgy technology, in particular to electroslag surfacing technology. Background technique [0002] At present, there are several production methods for manufacturing composite steel at home and abroad: one is the explosive forming method, the other is the rolling composite method, and the third is the composite casting method. The explosive forming method is mainly used in military industry and major national engineering projects, and the cost is extremely high. The problems of the rolling composite method are that the compression ratio is small, the bonding is not ideal, the surface treatment requirements are high, and the yield is low. The bonding quality and cost of the composite casting method are still ideal, but the transition layer is easy to separate and the equipment is prone to failure due to the different elongation rates of different metals during thermal processing of the surface composite steel i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04
Inventor 范广益范晔
Owner SHANGHAI JISI COMPOUND STEEL TECH DEV
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