CN101157243B

CN101157243B - A pressing and shaping equipment of insulating ceramics and insulating ceramics production technics

Info

Publication number: CN101157243B
Application number: CN2007100313608A
Authority: CN
Inventors: 黄群欢
Original assignee: Individual
Current assignee: Huang Qunhuan
Priority date: 2007-11-13
Filing date: 2007-11-13
Publication date: 2010-11-10
Anticipated expiration: 2027-11-13
Also published as: CN101157243A

Abstract

The invention discloses compression injection molding equipment of the insulating ceramic and a insulating ceramic manufacture process. The water in the pulp is drained during the molding through a water drainage hole and a water pumping device, so the pulp with high water content can be selected to form molding, the pulp with high water content has better fluidity, the molding cavity of the mold can be fully filled, the abrasion between the pulp and the mold can be effectively reduced during the molding, and the sintered finished product can be distorted due to the stress; simultaneously, because the water drained from the pulp can be drained through the water drainage hole, the gap between the parts of the mold can be reduced, the matching can be tighter, thereby enhancing the molding quality, a plurality of molding cavities can be arranged in the mold, more products can be molded simultaneously, and the production efficiency is enhanced.

Description

A kind of injection-compression molding equipment of insulating ceramics and the manufacture craft of insulating ceramics

Technical field

The present invention relates to a kind of former and manufacture craft of insulating ceramics.

Background technology

Insulating ceramics generally all is that the employing sizing material forming is a sintering ability final finished behind the germule.The technical process of making germule at present is that slurry is poured in the mould, matched moulds extrusion modling then, owing to contain a large amount of moisture in the slurry, during extruding, these moisture can only be discharged along the gap of mould, therefore need the gap between each parts of mould bigger, but slurry may be extruded during moulding along the gap, make that the product surface after the moulding is coarse, second-rate.In addition, in order to reduce the displacement in the above-mentioned technology, the water content of slurry can be lower, mobile poor, frictional force between slurry and the mould is bigger so, and there is certain stress in unbalance stress during moulding in the germule, produce stress release during sintering, make finished product produce distortion, form substandard products.

Summary of the invention

In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of injection-compression molding equipment of novel insulating ceramics, solved the problem of moulding draining, improved the quality of finished product.

Another object of the present invention is to provide a kind of and utilizes above-mentioned injection-compression molding equipment to prepare the technology of insulating ceramics, effectively raises the efficient of production.

The technical solution adopted for the present invention to solve the technical problems is: a kind of injection-compression molding equipment of insulating ceramics, comprise press and mould, mould and at least one drift during described mould comprises, mould is provided with die cavity in described, described drift is provided with osculum, this osculum links to each other with water plug, and the end face of drift is provided with the drainage layer.

A kind of shaping process of pressure injection that is applied to the said equipment making insulating ceramics, the insulating ceramics slurry of certain water content is injected in the die cavity of middle mould, press drives the die cavity that drift progresses into middle mould then, slurry is pushed by drift, moisture in the slurry sees through the drainage layer and is drawn out of outside the mould, and the slurry behind the final dewatering is in the mould inner pressure moulding.

The invention has the beneficial effects as follows: because this equipment is provided with the device that is used to discharge slurry moisture specially, therefore can choose the higher slurry of water content carries out moulding, and the high slurry of water content has good mobility, can fill the die cavity of mould fully, and when moulding, can effectively reduce frictional force between slurry and the mould, the finished product of sintering can be owing to stress produces distortion so; The moisture of being discharged by slurry during moulding simultaneously can be discharged through osculum, can reduce the gap between each parts of mould so, cooperates tightr, thereby improved the Forming Quality of product, and in the mould a plurality of die cavities can be set, a large amount of product of moulding is simultaneously enhanced productivity.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the structural representation of first kind of embodiment of former;

Fig. 2 is an A place partial enlarged drawing among Fig. 1;

Fig. 3 is the structural representation of second kind of embodiment of former;

Fig. 4 is a B place partial enlarged drawing among Fig. 3.

The specific embodiment

See figures.1.and.2, a kind of injection-compression molding equipment of insulating ceramics, comprise press 1 and mould 2, mould 21 and at least one drift 22 during described mould 2 comprises, mould 21 is provided with die cavity in described, described drift 22 is provided with osculum 23, and this osculum 23 links to each other with water plug, and the end face of drift 22 is provided with drainage layer 24.Also provide a kind of shaping process of pressure injection of making insulating ceramics at above-mentioned former the present invention, the insulating ceramics slurry of certain water content is injected in the die cavity of middle mould 21, press 1 drives the die cavity that drift 22 progresses into middle mould 21 then, slurry is pushed by drift 22, moisture in the slurry sees through drainage layer 24 and is drawn out of outside the mould, and the slurry behind the final dewatering is in the mould inner pressure moulding.Wherein the water content in the slurry can be 10%～40%, and therefore wider range can be applicable to different types of slurry easily.Because this equipment is provided with the device that is used to discharge slurry moisture specially, therefore can choose the higher slurry of water content carries out moulding, and the high slurry of water content has good mobility, can fill the die cavity of mould fully, and when moulding, can effectively reduce frictional force between slurry and the mould, the finished product of sintering can be owing to stress produces distortion so; The moisture of being discharged by slurry during moulding simultaneously can be discharged through osculum 23, can reduce the gap between each parts of mould so, cooperates tightr, thereby improved the Forming Quality of product, and in the mould a plurality of die cavities can be set, a large amount of product of moulding is simultaneously enhanced productivity.

With reference to Fig. 3 and Fig. 4, fully discharging for the ease of the moisture of slurry in the die cavity also increases simultaneously briquetting pressure, described drift 22 is respectively upper and lower two drifts, 221,222, two drifts 221,222 and all is respectively equipped with osculum 23, and the end face of two drifts 221,222 all is provided with drainage layer 24.

Wherein above-mentioned said drainage layer 24 is a filter cloth, filter cloth is to be formed by fibrage, in the process that slurry is extruded, the moisture of slurry can enter into the osculum 23 of drift easily by filter cloth 24, but the particle in the slurry is stopped by the fiber of filter cloth, can't pass in the die cavity that is left on mould, thereby reach the moisture in the separating slurry and the purpose of solid particle.

The still main dependence manually-operated of existing mode reinforced in mould, with container slurry is poured in the mould after finishing a mould punching press, so not only trouble but also production efficiency are low, the present invention is provided with feed pipe for mortar 25 in mould 2 bodies, the one end links to each other with supplying slurry equipment, in the mould, the wherein said slurry equipment that supplies comprised magazine and mateiral pump during the other end extended to.When finish one time punching molded after, corresponding mateiral pump will be automatically the slurry in the magazine pump be pressed and delivered in the die cavity of mould, quite efficient and convenient, can effectively enhance productivity.

The detailed more below shaping process of pressure injection of introducing this equipment: earlier pre-matched moulds, just starting press drives, low punch 221,222 motions cooperate with middle mould 21, start mateiral pump then, slurry in the magazine is injected in the middle mould 21 by feed pipe for mortar 25 and flow in the die cavity, after treating to charge into enough slurries in the die cavity, upper punch 221 moves downward, low punch 222 moves upward, the outlet meeting of feed pipe for mortar 25 is made by 222 sealings of upper punch 221 or low punch and stops Xiang Zhongmo for slurry, continue matched moulds, slurry is extruded, and moisture wherein sees through drainage layer 24 and is drawn out of mould through osculum 23, and solid particle then is left on final extrusion modling in the die cavity.

Claims

1. the injection-compression molding equipment of an insulating ceramics, comprise press (1) and mould (2), it is characterized in that: described mould (2) comprises middle mould (21) and at least one drift (22), mould (21) is provided with die cavity in described, described drift (22) is provided with osculum (23), this osculum (23) links to each other with water plug, and the end face of drift (22) is provided with drainage layer (24); Described drift (22) is respectively upper and lower two drifts (221,222), and two drifts (221,222) all are respectively equipped with osculum (23), and the end face of two drifts (221,222) all is provided with drainage layer (24); Be provided with feed pipe for mortar (25) in described mould (2) body, the one end links to each other with supplying slurry equipment, and the other end extends in the middle mould (21), and the outlet of feed pipe for mortar (25) can be sealed by upper punch (221) or low punch (222), thereby stops to middle mould (21) for slurry.

2. the injection-compression molding equipment of a kind of insulating ceramics according to claim 1, it is characterized in that: described drainage layer (24) is a filter cloth.

3. the injection-compression molding equipment of a kind of insulating ceramics according to claim 1 is characterized in that the described slurry equipment that supplies comprises magazine (3) and mateiral pump (4).

4. application rights requires the shaping process of pressure injection of 1 described equipment making insulating ceramics, it is characterized in that: the insulating ceramics slurry of certain water content is injected in the die cavity of middle mould (21), press (1) drives the die cavity that drift (22) progresses into middle mould (21) then, slurry is pushed by drift (22), moisture in the slurry sees through drainage layer (24) and is drawn out of outside the mould, and the slurry behind the final dewatering is in the mould inner pressure moulding.

5. a kind of shaping process of pressure injection of making insulating ceramics according to claim 4 is characterized in that: described water content is 10%～40%.