Pressure-adjustable vibratory type hot pressed sintering furnace

A hot-pressed sintering furnace and adjustable pressure technology, which is applied in furnaces, muffle furnaces, cooking furnaces, etc., can solve the problems of increasing sintering costs, multiple energy sources, and consumption

Inactive Publication Date: 2011-06-22
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is an obvious defect in the various hot pressing sintering methods currently used: if the existing sintering equipment is used to further increase the

Method used

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  • Pressure-adjustable vibratory type hot pressed sintering furnace
  • Pressure-adjustable vibratory type hot pressed sintering furnace

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Embodiment Construction

[0013] The present invention will be further introduced below in conjunction with the drawings of the description, but not to limit the present invention. First, manually loosen the handwheel screw compression mechanism 13 to a suitable position, open the furnace cover 11, put the mold 7 with raw materials into the furnace chamber 10, close the furnace cover 11, and tighten the handwheel screw compression mechanism 13 to Compress the furnace cover 11 at a suitable position, and then tighten the bolts on the connecting ears, so that the furnace chamber 10 is in a sealed state. The furnace chamber 10 is vacuumized and / or passed into an inert gas (or other protective gas) by the vacuum flange 18, and the pressurizing device 5 is started to pressurize the material in the mold 7 in the furnace chamber 10 (also can Simultaneously energize and heat), after the material pressure and temperature reach a certain value, start the efficient flow variable frequency motor 1, the speed of th...

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Abstract

The invention relates to a pressure-adjustable vibratory type hot pressed sintering furnace design capable of being used in a hot pressed sintering method for preparing various powder metallurgy product materials. The pressure-adjustable oscillatory type hot pressed sintering furnace has the following main characteristics: during the pressure sintering process, the magnitude of the sintering pressure is controllable, so that the repetitive loading and unloading of the sintering pressure can be realized, thus vibratory sintering is realized, the sintered density of sintered materials under the condition of vibratory sintering can be further improved, and the mechanical energy can be converted into sintering energy. The sintering furnace is mainly characterized in that on the basis of the original common hot pressed sintering furnace, a pressure-adjustable vibrator is additionally arranged at the bottom of the furnace, and the frequency and amplitude of pressure vibration can be adjusted through a control system. The sintering furnace provided by the invention has the characteristics of high temperature furnaces, controlled atmosphere furnaces and pressure-adjustable vibratory sintering production, and can be used for greatly improving the sintered density and mechanical properties of the product.

Description

technical field [0001] The invention relates to the design of a pressure-adjustable vibratory hot-press sintering furnace which can be used for preparing various powder metallurgy material products by a hot-press sintering method. Background technique [0002] Since cemented carbide, ceramics and other powder metallurgy materials have unique properties that are obviously different from metal materials: high hardness, good chemical stability, corrosion resistance, wear resistance, etc., and their applications in electronics, military industry, chemical industry, ceramics, mechanical processing The important value of many aspects such as mining and mining equipment has aroused the strong interest of scientists from all over the world. Among the various methods of preparing powder metallurgy material products, hot pressing and sintering is a very effective method. The hot pressing sintering method refers to applying a certain pressure to the sample at a certain high temperatur...

Claims

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Application Information

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IPC IPC(8): F27B5/04F27B5/06
Inventor 高伟卜秋祥
Owner QINGDAO UNIV OF SCI & TECH
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