Compositing method of dovetail groove metal plate clearance fit interface

A technology of interfacial compounding and dovetail groove, which is applied in metal processing, metal processing equipment, non-electric welding equipment, etc., can solve problems such as the technical report of dovetail groove interfacial compounding and difficulty in rolling process, etc., so as to save explosives, save Recombination time, effect of small amount of explosives

Active Publication Date: 2015-01-21
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that when the explosive welding interface produces brittle intermediate compounds, it will bring difficulties to the subsequent rolling process
[0004] In the published literature, patents, and materials, no reports on dovetail groove interface composite technology have been found

Method used

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  • Compositing method of dovetail groove metal plate clearance fit interface
  • Compositing method of dovetail groove metal plate clearance fit interface
  • Compositing method of dovetail groove metal plate clearance fit interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The cladding plate and base plate are made of stainless steel and Q235 steel plate respectively, and the dimensions are 200mm×100mm×3mm and 200mm×100mm×18mm respectively. Dovetail grooves with dimensions of 2mm on the upper bottom, 3mm on the lower bottom, and 1mm in height are produced every 3mm on the surface of the substrate. figure 1 shown. Bonded explosives are used for the metal plate composite, the ratio of RDX and nitrocellulose is 95:5, the size is 200mm×100mm×1mm, the mass is 35g, and the size of the aluminum plate is 200mm×100mm×2mm. The schematic diagram of the experimental device is as follows figure 2 shown. Experimental steps: (1) Use sandpaper to polish the front, back and surroundings of the cladding plate 7 and the base plate 8 to make the surface of the metal plate smooth and smooth, and then scrub the surface to be bonded with alcohol. (2) After placing a powder frame with a height of 1 mm on the surface of the aluminum plate 4, spread the explosi...

Embodiment 2

[0029]In this experiment, copper plate and Q235 steel plate were selected as cladding plate and substrate of metal plate composite, and the dimensions were 150mm×150mm×3mm and 150mm×150mm×18mm respectively. Dovetail grooves of 2mm on the upper bottom, 3mm on the lower bottom, and 1mm in height are formed on the surface of the substrate at intervals of 3mm, while dovetail grooves with the same shape as the substrate are formed on the surface of the cladding plate to ensure a clearance fit with the substrate, such as figure 1 shown. The size of the bonded explosive is 165mm×150mm×1mm, and the mass is 45g. In this experiment, the double-sided composite method is used for metal plate composite, such as image 3 shown. Experimental steps: (1) Use sandpaper to polish the front and back surfaces of the substrates 6, 8 and the cover plates 5, 7 and their surroundings to make the surface of the metal plates smooth and smooth, and then use alcohol to clean the surfaces to be bonded. ...

Embodiment 3

[0031] In this experiment, stainless steel plate and Q235 steel plate are used as cladding plate and substrate of metal plate composite, and the dimensions are 150mm×150mm×2mm and 150mm×150mm×18mm respectively. Dovetail grooves of 2mm on the upper bottom, 2.5mm on the lower bottom, and 0.5mm in height are formed on the surface of the substrate at intervals of 2.5mm. Figure 5 shown. In this experiment, emulsified explosives were used for metal plate composite, the ratio of emulsified matrix to glass microspheres was 96:4, the size was 150mm×150mm×5mm, and the mass was 125g. The upper surface of the emulsion explosive is covered with an aluminum plate with a size of 150mm×150mm×2mm to strengthen the restraint and ensure the stable explosion of the explosive.

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Abstract

The invention discloses a composting method of a dovetail groove metal plate clearance fit interface. The compositing method is realized through the explosive cladding method, the rolling method and the like. According to the method, after a base plate with dovetail grooves and a surface plate with dovetail grooves are in interference fit, the base plate and the surface plate are composited together through combination of a metallurgical bonding mode and a squeezing meshing mode of the dovetail grooves under the actions of energy of explosives or a rolling mechanism. Physical and chemical properties of metal sheets on the two sides of a dovetail groove combination interface are not changed, and large-area metal sheet composition can be conducted; the explosive charge for a unit of compositing area is small, and atmospheric pollution, noise pollution, explosion vibration and overpressure are reduced; during explosive welding of the metal sheets with the dovetail grooves, no boundary effect exists, the compositing effect on the periphery is good, and the lower limit and the upper limit of an explosive welding window are both increased. The compositing technology of the dovetail groove metal plate clearance fit interface can be applied to the fields such as chemical reaction containers and ships so as to meet the requirement for large-area metal composite plates.

Description

technical field [0001] The invention belongs to the field of metal plate compounding, and mainly relates to the key technology of compounding after the clearance fit between base and cladding plate with dovetail grooves. Background technique [0002] Metal composite materials are composite materials formed by the metallurgical combination of two or more metal materials with different physical, chemical and mechanical properties by using composite technology. Metal composite materials use the "complementary effect" to make up for their respective deficiencies while maintaining the metal properties of the base metal, so as to improve the fracture toughness, impact toughness, corrosion resistance, thermal expansion, electromagnetic properties, high temperature resistance, and wear resistance of the base metal. It has been widely used in aerospace, petroleum, electric power, automobile, ship, chemical industry and many other fields. [0003] The production methods of metal comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08B23K20/04
CPCB23K20/04B23K20/08B23P19/02
Inventor 马宏昊李雪交沈兆武薛冰王鲁庆
Owner UNIV OF SCI & TECH OF CHINA
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