Accelerate industrialized process further as the country, the market of domestic fireproof stuff greeted the gold period that the industry grows, market current situation basically is in the phase that demand exceeds supply. But to how can be just being bought for the client high quality fireproof material, just be important, now in the market fireproof character about a hundred, but material quality is really uneven, how can the user just drill with respect to a pair of piercing eye, buy all wool and a yard wide good goods. The user can let manufacturer offer certain sample first before buying firebrick, the client can define the actor of low quality of the product according to a few index of.
One, fireproof material arrange turns performance detect:
1, of firebrick detect project: Temperature of bate of stability of intensity of compression of content of main and chemical component, normal temperature, thermal shock, loading 4 projects.
2, fireproof and pouring of makings detect project: Intensity of content of main and chemical component, compression, fight fold density of ratio of change of the intensity, line after burning, bulk 5 projects.
Afore-mentioned manage turn performance detect should check a center to detect to the fireproof material product quality supervision and inspection of national attestation.
2, firebrick convention detects record and watch of circumstance of processing exceeding bid
1. The composition of firebrick fills in.
2. Why the error of big head, small head allows 1mm, length error allows 2mm, high error allows 1% . Explanation: 1mm of error of big, small head can adjust with plaster, length error 2mm can expand through bricky lateral chipboard and plaster will adjust. Height allows 1% , this is one kind represents a form, the firebrick that uses inside group kiln has 3 kinds of different height: 200mm, 220mm, 250mm. The error limitation of different height brick is different, but cannot exceed 2-2.5mm, usually, we should be controlled in 1-1.5mm. Also fireclay can adjust this error.
3. Flatness: Control is in 0.5mm. Explanation: The feet that use stuff will detect the level level of bricky bedding face, norms of commonly used feet of a place of strategic importance has 0.1, 0.2, 0.25, 0.3, 0.4, 6 kinds 0.5. The flatness great value of firebrick cannot exceed 0.5mm. On the operation, we are control is in very 0.2-0.3mm is advisable. Can adopt the rule of a place of strategic importance of 0.5mm, the flatness that shows this brick is bad, should many a few box, measure a few more (because exceed the mark fiducial value of 0.5mm,this is, when heal, the brick crushs easily; As a result of,the brick is in inside kiln after production the roll of kiln, bricky bedding face squashs each other, disintegrate of easy also generation) if still be such word, answer to be contacted with the supplier, by owner, we, the supplier decides corresponding construction build by laying bricks or stones to build program jointly. And by supplier acceptance this approves bricky service mass.
4. Does sheet weigh: ? Dash forward tip of Mie of ブ of Zhang of Hu ┑ Mu Li attacks about be contrary to neon of ┑ of of wall of cheek of N of copy of ┑ of Mao of aunt of Ъ of miscellaneous trade of ministry tip guides Qi Kan Ran of big pool of whetstone of Rong of hand Qi thirsty cowardly hopes Bo dash forward Hu ┑ takes Du to take ＝ dainty. If lay particular stress on explains firebrick dimension may slant big, or be affected with damp be affected with damp; Slant light specification porosity density of standard of pine of big, quality of a material, short of. To exceeding the brick of limits, the supplier does not have specification and acceptance, need not use.
5. Mark of edge caustic, horn caustic, crackle, indentation, frit, beat is wrapped Explanation: These blemish are firebrick is in make, firing, pack, the carriage process injury in generation and blemish, afore-mentioned phenomena should be only inside the scale on form, it is the brick that can use. Will tell commonly, sample 6 bricks are not due these cases appear, if discovery has one to go to 2, should reopen one box, still have this kind of appearance, should contact a supplier, inquiry circumstance. Had done relevant equipment to forget.
3, firebrick quality certificate:
1, keep a book character
2, leave factory product theory index and experiment method
3, construction instructor
4, brick graph
5, product container load plan
6, product certificate of approval These are acceptable according to.
4, firebrick sampling is regular: Firebrick norms and dimension, exterior, section checks the sample that examines with academic performance, use random sampling method: Every approve exterior quality with 10 tons of in the limit of, manage turns performance every batches undertake sampling with 60 tons of in the limit of. The exterior, dimension, sheet examines again take 20, manage changes function to examine take 6. Amount of sampling of firebrick of every kinds of model is not gotten little at 3.
Zhengzhou flourish fills the firebrick that serves as major to produce manufacturer, have perfect quality be careful in one's conduct to mark allows and monitor a system, the formula of check proved recipe that Rong Chengcai uses pair of 3 check, strict self check, sampling observation, reinspect a program, ensure each batches of fireproof material can the hundred standard that accords with an user, let what the client buys be at ease used Shu Xin.
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