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Carbide sintering furnace

A cemented carbide and sintering furnace technology, applied in the field of sintering furnaces, can solve the problems of surface cracking and low product quality of cemented carbide sintering body, and achieve the effect of avoiding surface cracking and improving the degree of automation

Active Publication Date: 2019-09-17
ZUNYI ZHONGBO CEMENTED CARBIDE
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  • Description
  • Claims
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Problems solved by technology

[0004] The present invention intends to provide a cemented carbide sintering furnace to solve the problem that the surface of the cemented carbide sintered body is cracked and the product quality is low when the existing sintering furnace heat-treats the cemented carbide sintered body

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  • Carbide sintering furnace
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Embodiment Construction

[0017] The following is further described in detail through specific implementation methods:

[0018] The reference signs in the drawings of the description include: furnace body 1, heating device 2, storage box 3, air intake pipe 4, air extraction pipe 5, valve 6, air extraction pump 7, flow limiting block 8, shoulder 801, rod 802, Card slot 9, positive temperature coefficient thermistor 10, electromagnet 11, magnet 12, first spring 13, second spring 14, first wedge-shaped block 15, horizontal plate 16, slide block 17, third spring 18, second Wedge block 19, limit block 20, first cooling box 21, second cooling box 22, first water inlet pipe 23, first water outlet pipe 24, second water inlet pipe 25, second water outlet pipe 26, air outlet pipe 27.

[0019] The embodiment is basically as figure 1 As shown, the tungsten carbide sintering furnace includes a furnace body 1, a temperature indicator for displaying the temperature in the furnace is installed on the furnace body 1, ...

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Abstract

The invention relates to the technical field of sintering furnaces, and particularly discloses a hard alloy sintering furnace. The hard alloy sintering furnace comprises a furnace body. The furnace body communicates with an air inlet pipe and an air exhausting pipe. The air exhausting pipe is connected with an air exhausting pump. The air inlet pipe is slidably connected with a flow limiting block. A clamping groove is formed in the inner wall of the air inlet pipe. A first switch of the air exhausting pump is mounted on the bottom wall of the clamping groove. A thermosensitive resister is mounted in the furnace body. The thermosensitive resister is in electric connection with an electromagnet, power supply and a second switch. A magnet is arranged between the electromagnet and the flow limiting block. Springs are arranged between the magnet and the electromagnet and between the magnet and the flow limiting block. Magnetism of the opposite ends of the magnet and the electromagnet are the same. A first wedge block is connected with the lateral wall of the magnet. A transverse plate is connected with the outer wall of the furnace body. The transverse plate is slidably connected witha sliding block used for limiting the limiting block to move. The sliding block is connected with a second wedge block. Hard alloy sintering body backfire after rapid cooling is achieved, surface crack of the hard alloy blank body is avoided, and final product quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of sintering furnaces, and specifically discloses a cemented carbide sintering furnace. Background technique [0002] Cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy. Cemented carbide has high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc. A series of excellent performance. In the manufacturing process of cemented carbide, it is necessary to put the cemented carbide blank into the sintering furnace for negative pressure sintering. (pores) and grain boundaries gradually decrease, and through the transfer of substances, the total volume of the green body shrinks and the density increases, and finally becomes a furnace with a dense polycrystalline sintered body with a microstructure. After the sintering is completed, the sintering furnace and the cemented carbide sintered body ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B5/04F27B5/06F27B5/16F27B5/18
Inventor 嵇建斌胡筱胡光强赵伟
Owner ZUNYI ZHONGBO CEMENTED CARBIDE
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