Firebrick makes a process shape mediumly, it is to point to have the aid of of fireproof raw material to machine preform the process of the base substrate of set dimension and appearance at outside force and model. However, the take its natural course that develops newlier is pouring the construction of makings basically does not need outside force.
Of firebrick shape, it is to satisfy the use requirement of goods above all, goods of the requirement when firebrick build by laying bricks or stones is built has proper form, exact size and enough strength. Next, shaping also is the significant step that raises goods manage to turn performance, can improve the constituent structure of goods through shaping.
The method that firebrick shapes is very much, shape traditionally how many minutes when the method presses preform water content to be:
(1) works a way partly: Its preform water divides 5 ％ left and right sides, apply to clinker content to differ (％ of 50 ％ —100) preform;
(2) but model law: Its preform water divides 15 ％ left and right sides, apply to make the product with large or complex form;
(3) notes oar way: Its preform water divides 40 ％ left and right sides, apply to the of all kinds and fireproof material that produces hollow Bao Bi.
Of firebrick shape the method is very much, shape commonly usedly method organic pressure shape law, vibration shapes law, extrusion law, pound dozen shape, etc static pressure shape, founding shapes, note an oar to shape etc. Why is the choice planted shape the method is main requirement of craft of etc of the appearance according to pug property, base substrate, dimension. Outside using machine pressing to shape except majority firebrick, vibration shapes to be used at shaping commonly big abnormity base substrate, extrusion uses at be in charge of shape base substrate commonly shape, note an oar to shape to be used at the base substrate with hollow thin wall to shape commonly. Etc static control the production that shapes to basically be used at high-powered fireproof data at present. Of course, shape methodological choice still gets the limitation of manufacturer equipment condition, consequently certain firebrick cannot be used relatively of beautiful shape method. Below this kind of circumstance, below the premise that the enterprise should ask in contented firebrick technology, the option is other relatively appropriate shape method. Use no matter why to plant method, the base substrate after shaping should satisfy following requirement:
(1) appearance, dimension and precision accord with design requirement;
(2) structure is even, compact, the surface and interior are flawless;
(3) has enough mechanical strength;
(4) accords with expectant physical performance to ask. The treatment process of firebrick base substrate is namely shape, its are main the method has: Machine pressing shapes, etc static pressure shape, founding shapes, vibration shapes, pound dozen shape, extrusion, hot pressing shapes etc.
Different manual firebrick is a kind of commonly used firebrick. The basis manufactures technology, can divide move vibration to shape to move tamp to shape with the hand for the hand. Material can use aleatoric fireproof material treatment, but should notice, the part that the hand uses tamp firebrick is stronger than the wet, caking property of mechanism firebrick. Firebrick basis produces the complexity with treatment, can divide it is 3 kinds: General model, special model, exceed special model etc. For example, have two above reentrant (include arc reentrant) firebrick, or the pointed part that has 50-70 ℃ , or more than 4 chamfer (add up to) weigh 2-15kg or be more than 100kg is a kind of special shaped brick.
To produce these abnormity products effectively, punch compose cannot be passed to shape below a lot of circumstances, machinery shapes the appearance of the appearance of the product that firebrick asks to want production, dimension and punch vibration space becomes scale ground harmonious, additional, the mould combines the drawing of patterns that can go to the lavatory simply. Accordingly, face a few large, special, exceed large firebrick, be necessary to use technology of another kind of production: Shape by hand, this craft is the worker that produces pure manual vibration to shape, b. Under photograph comparing, mechanical intensity still is differred slightly, but suit to produce the small-sized abnormity firebrick with more groove of groove, hole, arc, commonly used in body of firebrick build by laying bricks or stones, the firebrick amount that with abnormity artificial build by laying bricks or stones builds won't be very much, but with Ot her commonly used firebrick intersects or the crucial position of cut, cannot have, so very much below this kind of circumstance unit often can choose use abnormity to material is replaced or pay high price.
In this kind working orgnaization falls, the yield of moulding worker is very low, shape firebrick also does not need. Every more than 300 ～ 400 jins, raising modelling worker to produce the main condition of efficiency is:
1, the worker's tool ought to be unsystematic, indulge, the article that so that mould worker is in,collect of OK and free land holds the post of yard place to want why.
2, answer to give a pattern labour tabulation and spare parts single cross before the job, so that the mould can in time arrange the budgetary workload that day, so that check mould status alone.
3, the person does not answer deviate assists the job: Move the working place of the brick, feed forms the oast of firebrick, brick board or brick to wear, etc, these jobs must be handed in by the professional of inexperience (bearer) responsible brick, board the yard place that the worker should send the kind before going to work.
4, shape the brick should be sent in time to dryer by bearer, so that shape worker from beginning to end can will shape the brick is placed in opening a space.
5, the lube of high quality of industrial lube need, of lube use up least, because the lube of excessive can increase waste.
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