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Explosive cladding method for groove type hot melt interface of metal plate and explosive device

A metal plate and metal plate technology, applied in metal processing equipment, non-electric welding equipment, welding equipment, etc., can solve problems such as the method of recombination explosion at the groove-shaped hot-melt interface that has not been checked, and achieve the effect of saving explosives and recombining Good, low explosive effect

Pending Publication Date: 2017-07-18
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the published literature, patents, and materials, no method has been found for recombination of grooved hot-melt interfaces, that is, the solid-liquid combination method of combining the grooved substrate and the cast cladding plate, and then undergoing explosive recombination. A report on solid-solid interfacial composite technology for further welding

Method used

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  • Explosive cladding method for groove type hot melt interface of metal plate and explosive device
  • Explosive cladding method for groove type hot melt interface of metal plate and explosive device
  • Explosive cladding method for groove type hot melt interface of metal plate and explosive device

Examples

Experimental program
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Effect test

Embodiment 1

[0044] The cladding and base plate are made of aluminum and carbon steel respectively. Carbon steel is used as the base plate. The size of carbon steel is 200mm×100mm×30mm. I-shaped grooves are opened every 3mm on the surface. The length of the I-shaped groove is 4mm, the width is 2mm, and the opening is 2mm. 2mm, such as figure 1 As shown, the raw material aluminum block used for the cladding plate is melted in a high-temperature furnace, taken out, evenly cast on a carbon steel plate, and cooled to form a cladding plate. Bonded explosives are used for metal plate compounding, the ratio of RDX and nitrocellulose is 95:5, covered with aluminum plate, the schematic diagram of the experimental device is as follows Figure 5 shown. Experimental steps: (1) Use sandpaper to polish the front and back of the substrate 8 and its surroundings to make the surface of the metal plate smooth and smooth, and then use alcohol to clean the surface to be bonded. (2) Remove impurities from th...

Embodiment 2

[0046] In this experiment, aluminum and SUS304 stainless steel plates were selected as the cladding plate and substrate of the metal plate composite. The size of the stainless steel was 200mm×150mm×20mm, and criss-cross I-shaped grooves were opened every 3mm on the surface of the substrate. The length of the I-shaped groove is 4mm, the width is 2mm, the opening is 2mm, and the distance from the border is 2mm, such as figure 2 shown. As shown, the raw material aluminum block used for the cladding board is melted in a high-temperature furnace, poured evenly on the stainless steel plate, and cooled to form the cladding board. The size of the bonded explosive is equivalent to the length and width of the base plate and the cladding plate, and the height is 1mm. The schematic diagram of the experimental device is as Figure 5 shown. Experimental steps: (1) Use sandpaper to polish the front, back and surroundings of the substrate 8 to make the surface of the metal plate smooth an...

Embodiment 3

[0048] In this experiment, copper and SUS304 stainless steel were used as the cladding and substrate of the metal plate composite, and the size of the substrate was 150mm×150mm×18mm. Every 3mm on the surface of the substrate, dovetail grooves with 2mm upper bottom, 3mm lower bottom, and 1mm high (such as image 3 ). The size of the substrate is determined according to actual needs. The raw material aluminum used for the cladding plate is melted in a high-temperature furnace, taken out and evenly poured on the SUS304 stainless steel plate, and cooled to form a cladding plate. In this experiment, emulsified explosives were used to compound metal plates, and the ratio of emulsified matrix to glass microspheres was 96:4. The upper surface of the emulsion explosive is covered with an aluminum plate with the same size as the base plate and cladding plate to strengthen the restraint and ensure the stable explosion of the explosive.

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Abstract

The invention provides an explosive cladding method for a groove type hot melt interface of a metal plate and an explosive device. According to the method, grooves are formed in the surface of a metal base plate at first, the grooved interface is cleaned up, raw materials of a covering plate are melted in a high-temperature furnace, a part of melted liquid flows into groove cavities, under the thermal action of the high-temperature liquid and the mechanical action of the grooves, primary combining of the covering plate and the base plate is achieved, then the covering plate is further squeezed into the grooves through an explosive method, the base plate and the covering plate squeeze each other and are combined closely, and tight combining force is achieved on the interface of the two metal plates. According to the explosive cladding method and the explosive device, the amount of explosives in unit area is small, a honeycomb aluminum explosive loading structure is adopted, the explosive amount and the cladding time can be saved, and meanwhile, atmospheric pollution, noise pollution, vibration and overpressure are reduced.

Description

technical field [0001] The invention belongs to the technical field of metal plate compounding, and in particular relates to a method and an explosive device for explosive compounding of groove-shaped hot-melt interfaces of metal plates. 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 meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08
CPCB23K20/08
Inventor 马宏昊孙玉玲马瑞杰沈兆武杨明邓永兴
Owner UNIV OF SCI & TECH OF CHINA
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