Firebrick build by laying bricks or stones builds dozen of ash
That is to say that make ash is stuck in what wait for firebrick of wall of build by laying bricks or stones receive the surface to brush the oar that wipe sand beforehand. The type of basis firebrick, appearance and the change of the position that make ash, the way that makes ash is different also. Hit the height with technical ash to fill wall compressive strength harm is held out big. Hit the firebrick with good ash, wall of build by laying bricks or stones ends again when unlock is checked, can see build by laying bricks or stones is seamed inside bespread sanded oar well-balancedly, but the firebrick with make ash not quite good, the surface can have space, make the caking property of bricky body decreases, have will cause steam of fill wall leakage.
(1) cleaver makes ash
The right hand takes a brick, left hand takes cleaver. The law that wipe an oar makes ash when be being operated actually, wu should add cleaver to take mortar first, take a brick subsequently. Make ash when, attend day of a of the brick big face, reach bricky build by laying bricks or stones constantly, with brick of right hand general card is tightened, left hand holds mallet to beat, more make the brick the travel that tighten ability eventually.
(2) big shovel makes ash
The right hand takes firebrick, left hand give oneself airs is shovelled, increase a shovel to make mortar first, take firebrick subsequently, this kind of real operation and cleaver make ash same. Should advertent is the 4th pose in the graph, the brim of the sharp edge firebrick of big shovel goes backward, make mortar produces a protuberant the back of the human body of course, wall of facilitating build by laying bricks or stones.
(3) hit ash to handle common issue actually:
1) no matter firebrick factory is using cleaver Zuo is to use big shovel to make ash, overall level is to be able to make mortar fruity (the unlock after build by laying bricks or stones is over, check with 100 grid, meantime unoccupied place rate does not exceed 10 ％ ) , those who dig sanded oar is to more or less answer to the dimension on face of basis ceramic tile and ash seam Bao Hou and be decided, do not suit overmuch or too little, still should ensure ash seams Bao Hou, and be operated actually convenient.
2) the sanded oar inside grey bucket often should be blended, make mix up of its sand oar well-balanced, use convenient. Do not touch the edge inside silty bucket, the sanded oar of bucket edge should be blown into the bucket inside.
3) when making ash, be in as far as possible of sanded oar bucket above begin, should seam Bao Houshao than the build by laying bricks or stones of the requirement a few thicker, in firebrick surface well-balanced brush the oar that wipe sand. Big shovel does not let be bumped on firebrick when making ash grind, should brush glossily.
Firebrick brick density
The production place of basis firebrick chooses raw material type different, its firebrick cubage is opposite density is different also, general and fireproof insulation material measures its volume before former plant opposite density, cubage is opposite density: The character that expresses dry impetuous handicraft is both between total volume scale, with G/cm3 expression, cubage is worth relative to density index is the crucial index value of level of high density of qualitative analysis handicraft, when opposite density is higher, can reduce outside slag to wait inbreak.
Common clay brick is 1.82.0g/cm3, brick of high density clay is 2.052.20g/cm3, brick of high density clay is 2.252.30g/cm3, silica brick is 1.801.95g/cm3, magnesia brick is 2.602.70g/cm3, aluminium and magnesia brick are 2.903.00g/cm3, the synthesis that the opposite density index of craft bulk is bulk of the hole in craft and mineral content shows, because measure,use as easily the method of level of differentiate craft to calcine.
Endanger the element of firebrick character
The wearability of firebrick can be its resist Zuo of solid state, fluid and soot cyclone are right the working ability of the effect of mechanical equipment breakdown of its surface layer. Below a lot of states. The harm that firebrick surface layer causes by effect of mechanical equipment breakdown is normally very more serious. It often is firebrick the prime cause of consume of the surface layer in working by its. Occasionally, it corrodes harm than organic chemistry big still, or be it is the harm that by organic chemistry deposit action causes, often accentuate because of mechanical equipment effect. The line in the firebrick that is like the end on puddling blast furnace and iron barrel-drain often because wear-resisting function is insufficient and consume. Firebrick of communication carbonization room suffers anxious carbon damage easily also, mouth of mouth of puddling anxious furnace, tapping and its are other get the place that cyclone is eroded and various fused current crosses, often be differred because of firebrick wear-resisting function and consume. Consequently, the wear-resisting function of firebrick is a pivotal character.
Firebrick wear-resisting function depends on the component of firebrick and construction. When the high density monocrystal that comprises for onefold crystallization when the component of firebrick, key of its wear-resisting function depends on forming the intensity of the mineral crystal of raw material. Intensity is high, the wear-resisting performance of raw material is high. When mineral crystal is different tropism, crystal is subtle, the wear-resisting performance of raw material is higher. When raw material is comprised by heterogeneous, the cubage of Yao of its wear-resisting function and raw material has relative to density or hole rate instantly associated, also related to the shirt-sleeve compressive strength between each composition. Consequently, plant in some of normal temperature condition firebrick character criterion, its wear-resisting function is both between fight approach compressive strength direct ratio, the firebrick with admirable to calcine its wear-resisting performance is good also.
The wear-resisting function of firebrick and are spent relevant. If tall aluminous firebrick, feel it below constant temperature commonly (it is when ductility limits when 900 ℃ of 700 ～ are the following) , the temperature with lower wearability is higher, when can feeling the stretch pattern that follows firebrick when temperature is elevatory, wearability has reduce certainly. Spend when rise, after the higher cost that exceeds stretch mould, follow stretch pattern decrease, wear-resisting function instead rises stage by stage. If clay brick is when 1350 ℃ of 1200 ～ , wear-resisting function and even good the person that fall at normal temperature. Spend when rise further, the viscosity of in handicraft of easy fire prevention concentrated juice photograph when amounting to 1400 ℃ to control decreases substantially, wear-resisting function as decrease. If some firebrick contain chromic qualitative firebrick, spend along with rise, wear-resisting function promotes.
Flourish Cheng Naicai regards professional fireproof material manufacturer as the home, we have rich kiln furnace to liner is built and transform experience, if you have pertinent question and demand but the incoming telegram undertakes advisory, we can act on cordial attitude of attending to guests to offer professional solution to you.
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