Production of abrasion-proof ceramic composite mold steel plate with self-propagating method

A wear-resistant ceramic and self-propagating technology, which is applied in the manufacturing field of improving the wear resistance of extrusion molding die materials, and can solve problems such as the promotion of difficult-to-extrude die production enterprises and the difficulty of process technology

Inactive Publication Date: 2008-09-24
郑州大学橡塑模具国家工程研究中心
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Problems solved by technology

[0007] Static self-propagating method to prepare ceramic coating dies for semi-solid processing of ferrous metals (Chen Wei et al., application number: 200510040328.7; approval announcement number: 1762618), which has been applied in the production of extrusion dies, and its characteristic is that the die is integrally formed at one time , but the literat

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  • Production of abrasion-proof ceramic composite mold steel plate with self-propagating method

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Embodiment Construction

[0012] The concrete implementation process of this invention is, at first steel plate base material (1) is that gap filling material and refractory material box (3) lower mouth are tightly joined and fixed by asbestos layer (5) at first, forms a complete box body; Powder and Fe 2 o 3 Mix the powder; fill the mixed powder into the refractory box (3) from the self-spreading material inlet (4); cover the self-spreading material inlet (4), put the box into the heating furnace to preheat to 750±50°C, Keep warm for 20 minutes, take out the box and put it vertically into the upper step of the steel movable platform (6); start the adjustable speed motor (7) with eccentric mass to make the movable platform (6) start to vibrate slightly horizontally; ignite Al+Fe 2 o 3 powder, Al and Fe 2 o 3 Thermite reaction occurs, the products Fe and Al 2 o 3 They are all in a liquid state, the vibration can squeeze out the air bubbles in the liquid, and under the action of the vibration and t...

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Abstract

The invention relates to a manufacture technique for improving the wearing resistance of an extrusion forming mould material, and the manufacture technique can be applied to the industries such as a building material and a flame-proof material which need the extrusion forming mould. The manufacture technique aims to manufacture a ceramics iron and steel composite board, so as to improve the rigidity of the key place of the mould and strengthen the wearing resistance of the mould through cutting, inserting and welding the board to the extrusion mould. The manufacture technique mainly adopts the technical proposal that: with vibration and magnetic force, the separation problem of the thermit reaction liquid product of Fe and Al2O3 in self-spreading ceramics iron and steel composite manufacturing is solved, so as to reach the equal effect for separating the rotation inertia force. The main element of the mould comprises a flame-proof material box provided with the steel plate backing as the base, and reaction raw material Al as well as Fe2O3 mixed-powder which are filled-in at the upper opening of the flame-proof material box; one end of a steel mobile stage is fixedly provided with a speed-regulation vibration electric motor with eccentric quality, and the middle part of the steel mobile stage corresponding to the steel plate backing is punched with for fixing a permanent high magnet; the upper side of the magnet is parallel to the surface of a platform; the platform is connected with the base through a rolling bearing and a spring.

Description

Technical field: [0001] The invention belongs to the manufacturing technology for improving the wear resistance of extrusion molding die materials. It can be used in industries that require a large number of extrusion molds, such as building materials, refractory materials, and metal semi-solid processing. Background technique: [0002] The mold is the main production equipment in the extrusion molding of building material molding, refractory material molding, metal semi-solid processing and other industries. Their common feature is that the friction of the material against the mold is particularly large in the extrusion molding project, and the mold wears quickly. The precision of the mold is short and the service life is short. In order to solve this problem, experts and engineers have developed a variety of high-hardness, wear-resistant high-carbon, high-chromium, high-manganese, high-molybdenum and other alloy steels as mold manufacturing materials, or for existing alloy...

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Application Information

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IPC IPC(8): B22D19/08B22D23/06
Inventor 申长雨孙利民
Owner 郑州大学橡塑模具国家工程研究中心
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