Leveling Technology of Flat Composite Surfacing Welding

A kind of process and flat plate technology, which is applied in the field of leveling process, can solve problems such as circumferential deformation, and achieve the effect of reducing deformation, reducing damage, and small error range

Active Publication Date: 2016-09-28
江苏扬先科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there will be more serious circumferential deformation, which is in the shape of a spherical head

Method used

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  • Leveling Technology of Flat Composite Surfacing Welding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 ： Composite surfacing welding is carried out between the ordinary carbon steel plate of model Q345R and the material of model S30408, and the composite area is 200 cm 2 The slabs are put into the heat treatment furnace for preheating treatment, and the preheating temperature of the reaction is 170°C; the preheated slabs are stamped by a mechanical punching machine, and the parallel slabs are processed into reversely deformed slabs After the operation is completed, measure the back pressure deformation of the plate, and the measured back pressure deformation of the slab is 6mm; the slab after the reverse deformation operation is completed and other materials are compositely surfacing; after the composite surfacing is completed, Put the product into a heat treatment furnace for stress relief heat treatment, the treatment temperature is 350-420 ° C, and the treatment time is 5 hours; the composite surfacing plate after treatment has obtained stable flatness, th...

Embodiment 2

[0022] Example 2 ： Composite surfacing welding of ordinary carbon steel plate of model Q345R and material of model S31603, the composite area is 200cm 2 The slabs are put into the heat treatment furnace for preheating treatment, and the preheating temperature of the reaction is 165°C; the preheated slabs are stamped by a mechanical punching machine, and the parallel slabs are processed into reversely deformed slabs After the operation is completed, measure the back pressure deformation of the plate, and the measured back pressure deformation of the slab is 5mm; the slab after the reverse deformation operation is completed and other materials are compositely surfacing; after the composite surfacing is completed, Put the product into a heat treatment furnace for stress relief heat treatment, the treatment temperature is 350-420 ° C, and the treatment time is 5 hours; the composite surfacing plate after treatment has obtained stable flatness, the error range of flatness is smal...

Embodiment 3

[0023] Example 3 ： Composite surfacing welding of ordinary carbon steel plate of model Q345R and material of model CrMnTi, the composite area is 200 cm 2 The slabs are put into the heat treatment furnace for preheating treatment, and the preheating temperature of the reaction is 205°C; the preheated slabs are stamped by a mechanical punching machine, and the parallel slabs are processed into reversely deformed slabs After the operation is completed, measure the back pressure deformation of the plate, and the measured back pressure deformation of the slab is 9mm; the slab after the reverse deformation operation is completed and other materials are compositely surfacing; after the composite surfacing is completed, Put the product into the heat treatment furnace for stress relief heat treatment, the treatment temperature is 350-420 ℃, and the treatment time is 6 hours. After the treatment, the composite surfacing plate has obtained stable flatness, the error range of the flatne...

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Abstract

The invention discloses a leveling process of flat plate composite surfacing welding. The specific operation method of the leveling process is: put blanks with different composite areas into a heat treatment furnace for preheating, and the composite of the blanks The area is 200-30000cm2, and the preheating temperature of the reaction is 165-230°C; the preheated slab is stamped by a mechanical punching machine, and the back pressure deformation of the slab is 5-70mm; composite surfacing After completion, put the product into a heat treatment furnace for stress relief heat treatment, the treatment temperature is 350-420°C, and the treatment time is 5-13h. The invention effectively solves the problems of large deformation after surfacing and difficulty in leveling, greatly reduces the deformation after surfacing, reduces damage to the surfacing layer, especially the excessive layer, during post-welding leveling, and reduces the occurrence of defects possible. Reduce the unnecessary increase in production costs due to leveling difficulties. Stress relief heat treatment is carried out after welding, and low temperature stress relief treatment is used to obtain stable flatness after the parts are manufactured; low temperature stress relief can also make the stainless steel surfacing layer avoid the metal sensitization temperature range, so as to obtain better antiseptic effect.

Description

Technical field [0001] The present invention involves the field of materials in mechanical manufacturing, and especially involves a flat process of using the mechanical materials of composite pile welding places. Background technique [0002] In the process of mechanical manufacturing, it is often encountered in a large amount of ultra -thick corrosion -resistant and wear -resistant materials, while ultra -thick and corrosion -resistant wear and wear -resistant materials have long customization cycles, high costs, and difficulty in processing.Therefore, some manufacturers began to use ordinary carbon steel plate composite stacked stainless steel or wear -resistant steel to achieve the purpose of reducing costs.However, the plates of composite pile welding are very easy to deform and cannot meet the needs of the use. [0003] As one of the indispensable methods in the manufacturing process of mechanical products, it can effectively enhance the strength of the tablet and the acid a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04B23K9/32
CPCB21C37/02
Inventor 徐忠文徐加华龚钥宝吴建堂
Owner 江苏扬先科技有限公司
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