Price of tall aluminous brick: Price of tall aluminous brick is main payoff depends on the content of tall aluminous firebrick and use index. The detailed information of levels of pair of state of tall aluminous brick is below.
GB/T2988-2012 of level of state of Chinese people republic
Level of state of tall aluminous brick
1, limits
Program of assess of method of requirement of size of the classification that this standard provided tall aluminous brick, shape, technology, experiment, quality, pack, mark, carry, store reach quality certificate.
This standard applies to furnace of high temperature kiln to use common brick of tall aluminium of tall aluminous brick and low creep.
2, term and definition
GB/T10325 limits and following term and definition apply to this file.
1, common tall aluminous brick: It is to show with to calcine alumina is the common high aluminous products with main firing raw material.
Brick of tall aluminium of 2, low creep: It is creep rate inferior firing high aluminous products.
3, classification and shape size
1, cent of tall aluminous brick is common brick of tall aluminium of tall aluminous brick and low creep two kinds big.
2, common tall aluminous brick changes index cent to be normally: Brand of nine of LZ-48, LZ-55, LZ-65, LZ-70, LZ-75, LZ-80, LZ-55G, LZ-65G, LZ-75G. The L in the brand, Z is the initial of Chinese Phonetic Alphabet of aluminous, brick, the number is alumina quality mark, ever since G uses a brick on behalf of blast furnace.
3, brick of low creep tall aluminium changes index cent to be normally: DRL-155, DRL-150, DRL-145, DRL-140, DRL-135, DRL-130, DRL-127 7 brands. The D in the brand, R, L is initial of low, squirm, aluminous Chinese Phonetic Alphabet, the number leads the 1/10 of experiment temperature for creep.
4, the regulation that shape size of the brick should accord with GB/T2992.1, GB/T20511, YB/T2217, YB/T4198, YB/T5012 and YB/T5018, yi Ke has production by the blueprint that needs to just be offerred.
4, technical requirement
1, common the manage of tall aluminous brick changes index to should accord with a watch the regulation of 1.
2, the manage of brick of low creep tall aluminium changes index to should accord with a watch the regulation of 2.
3, bricky permissible variation in dimension and exterior should accord with a watch the regulation of 3.
5, experiment method
Of 1, brick examine make appearance undertake by GB/T7321. Of 2, chemical composition determine to undertake by GB/T6900. Density of 3, bulk, apparent pore leads examine to undertake by GB/T2997. Of intensity of compression of 4, normal temperature detect undertake by GB/T5072. Bate of 5, loading begins temperature examine to undertake by YB/T370. 6, heat permanent line changes examine to undertake by GB/T5988. Rate of 7, creep examines to undertake by GB/T5073. Of sex of 8, heatproof shake examine to undertake by YB/T376.1. Of the dimension of 9, brick, exterior examine to undertake by GB/T10326. 6, quality assess program 1, group batch The product is made up by same brand batch, every batches are not more than 500t. 2, sample reach regulation of decision of acceptance Sample, check and accept undertake by GB/T10325. Manage changes quality to check and accept sampling inspection characteristicly, common tall aluminous brick: Temperature of bate of intensity of apparent pore rate, compression, loading is check and accept a project; Brick of low creep tall aluminium: Rate of apparent pore rate, compression intensity, creep is check and accept a project. Should heat permanent line change serves as when checking and accept index, its sentence shape form to be: Only cost is inside value and scope of the least value, sentence for qualification, it is otherwise unqualified. 7, pack, mark, carry, store reach quality certificate 1, brick uses tray or according to the user the requirement undertakes packing. Of 2, brick pack, mark, carry, store by GB/T16546 the regulation undertakes. When 3, brick is given out, answer with the quality certificate that signs and issue for square quality branch, carry bright offer square name or emblem mark, want square name, deliver goods date of name of number of size of date, contract, level, product, brand, brick, lot number and corresponding manage are changed examine result.
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