Does corundum not come is what stone material pledges pouring expect and but plastic distinction there is what?

Pouring expect and fireproof but before plastic distinction, say both composition has simply first why to distinguish:

Fireproof and pouring expecting is the compound that comprises by fireproof collect makings, bond and additive.

Fireproof can be comprised plasticly and fireproof and pouring makings is similar, comprise by fireproof aggregate and powdery makings, bond and plasticizer, can add according to using a requirement to differ have special additive, wait like preservative, shrinkproof agent, antifreeze.

Both use method is different:

Fireproof and pouring the much in makings is to add water to mediate usable and pouring the pug of law construction, pouring the conserve that period of time passes after shaping square but drawing of patterns, later the between natural conserve when repass is proper can be thrown roast use.

Fireproof but plastic it is need and bond union, use tamp law construction. Commonly used bond classification has: Clay is united in wedlock but plastic, phosphoric acid is united in wedlock but plastic, vitriolic aluminous union but plastic etc.

In addition fireproof but plastic plasticity is good, it is better to have in high temperature combines strength, wearability and heatproof shake function. It is the adventitious that is worth to recommend fireproof material.

Does corundum not come is what stone material pledges pouring expect and but plastic distinction there is what?

Because material of corundum Mo Laishi has very high fireproof temperature, fireproof degree arrive at 1800 ℃ above, still have very tall hardness, because this goods has very high compression strength, have excellent heatproof shake stability at the same time, change with inferior high temperature line, often mix as adventitious refractory products in fireproof data industry finalize the design in refractory products as raw material, the goods of make it is in high-grade and fireproof material, same corundum not comes to this kind of product a few advantages of stone itself. Below small make up the distinction that introduces the kiln furnace such as below two kinds of boiler, incinerator to use adventitious product for you: Corundum not comes stone material is qualitative pouring makings and corundum Mo Laishi material is qualitative but plastic.

Fireproof and pouring expecting is a kind what make by fireproof stock is graininess with farinaceous material, join certain amount bond and moisture to be comprised jointly, have higher liquidity, use aptly pouring methodological construction.

Fireproof and pouring the main breed that expecting is adventitious fireproof material, what expect according to what using cementation is different, manage can distribute its conserve forming machine the rigid that it is water, gas rigid and igneous rigid 3 kinds.

1, water rigid is fireproof and pouring makings: What expect for cementation with cement is pouring expect in sclerotic process need has water to share chemical reaction, form gel sclerosis intensity, it is water rigid fireproof and pouring makings. Cement is a decision pouring makings intensity (especially normal temperature intensity) main factor, but its fireproof degree relatively inferior, be in so after assuring necessary normal temperature intensity, answer to reduce cement dosage as far as possible. If need for the workability of close-grained sex and construction, can increase fireproof pink makings appropriately. Reducing cement dosage also is one of measure that reduce cost.

Mud of aluminous acerbity brine and silicate cement, lime should prevent strictly to wait in construction mix with. Because these two kinds differ,the meeting after the material of chemical composition mixes produces hydrous aluminium acid 3 calcium, make intensity is reduced greatly.

2, gas rigid is fireproof and pouring makings: It is the CO2 in pointing to its cementing agent to absorb air in conserve and gradually caky sclerosis. Fireproof and pouring in makings most

Commonly used is water glass fireproof concrete. Water glass is fireproof and pouring makings besides have high temperature resistant property besides, it still has the property of acid-proof, wear-resisting, because this is commonly used,make the liner of chemical equipment.

Water glass is pouring the process with sclerotic below natural condition makings is very slow, need to join hurried to coagulate when construction natrium of agent fluorine silicon acid, tall aluminous cement.

3, igneous rigid is fireproof and pouring makings: What make cementation material with phosphoric acid and phosphate is pouring makings, need course heats roast hind ability is obtained intensity and tall

Lukewarm function, friend says igneous rigid is fireproof and pouring makings.

Fireproof but plastic be by farinaceous and farinaceous stock and but the bond such as model clay and add plastic cooperate, add a few water, via mixing refine adequately, one kind when what comprise shows mud to cream shape is in longer the indeterminate form that taller plasticity carries inside time is fireproof material.

Graininess with farinaceous makings be but plastic main component, occupy the 85 ％ of 70 ％ ～ of gross commonly. The fireproof raw material that it can pledge by all sorts of material is comprised, often depend on material to be opposite character but plastic undertake classified and name. As a result of this kind of indeterminate form fireproof material basically is used in all sorts of heating furnace that do not contact with melt content directly, use argillaceous grog and tall aluminous qualitative grog more commonly. Make pledge gently but plastic can use light qualitative graininess material.

Plasticity clay is but plastic main constituent, although occupy but the 10 ％ ～ of plastic gross 25% , but right but plastic plasticity, right but plastic with its stability of the combinative strength of sclerotic body, bulk is mixed fireproof function impact is very big however. On particular significance, can think argillaceous property and amount are being controlled but plastic property.

General requirement but plastic should have taller plasticity, and classics is long after storing, still have certain plasticity, call can be versed in plasticly

Make a gender. Plasticity and argillaceous character and argillaceous dosage are concerned, in addition, basically depend on the amount of moisture, it increases along with what water measures and rise. But, water measures exorbitant meeting to bring adverse effect. General 10 ％ of 5 ％ ～ are advisable.

Make but plastic plasticity is not had inside its storage life

Reduce significantly, cannot use water rigid bond.

But plastic do not require extraordinary skill when construction. When in order to makes lining, will but

Plastic by take out in sealed container, the shop hangs a brick in condole or pull a hook between, the hammer that use wood or air hammer (70mm of ～ of every thick 50mm) pound solid can.

Be in have not before sclerosis, can undertake the surface is machined. Make to facilitate among them moisture eduction, every other is certain removed get through is stomatic. Final basis is designed

Set bilge shrink seam. If in order to makes integral furnace lid, but the construction on preexistence blow mould bottom, after classics is dry again hoisting.

But plastic bottom use temperature basically is used graininess with character of farinaceous makings bottom different. Be like, common clay person can use at 1300 ℃ ～ 1400 ℃ are the following, high grade person 1500 ℃ of 1400 ℃ ～ ; The person that tall aluminium pledges 1700 ℃ of 1600 ℃ ～ are taller even; The person that chromium pledges 1600 ℃ of 1500 ℃ ～ .

The same point of two kinds of adventitious fireproof material:

1.Main chemical composition is identical, corundum Mo Laishi is pouring makings and corundum not come Shi Ke is plastic used main raw material is material of corundum, Mo Laishi, the alumina Al2O3 that contains in chemical composition, the proportion that place of SiO2 of 2 oxidation silicon holds is basic and same, the chemical composition of other drop includes 3 oxidation 2 iron Fe2O3, natrium of Potassium of oxidation calcic CaO, oxidation K2O/Na2O is basic and identical, to pouring expect and but plastic composition requirement standard is demarcate bases, without the scale of requirement microchemistry material, besides low cement pouring makings, outside containing chromic, zirconium, barium, titanium to wait for special and incomplete fireproof data;

2.Main physical function is same: Corundum Mo Laishi is pouring makings and corundum not come Shi Ke's plastic main physics function includes bulk density G/cm3, fireproof spend ℃ , change of high temperature line is led, compression intensity MPa and thermal shock number agree basically, because mineral composition structure decides fireproof material function, the main function index of these adventitious fireproof material can agree.

 

The different point of these two kinds of adventitious fireproof material:

1.For the name from the product one is pouring makings, one is but plastic, the construction means because of them (method) different, pouring the construction means of makings is pouring shake construction, but plastic construction means method is agitate pounds dozen of daub construction, so to pouring want to undertake pattern plate laid to construction place beforehand for makings construction, of anchorage firmware solder Zou waiting for a pace, pouring after be over, should undertake quaky exhaust, specific and OK referenced and pouring the construction point of makings; But plastic construction does not need beforehand laid pattern plate, do not want vibrating head to shake exhaust.

2.Corundum Mo Laishi is pouring makings and corundum not come Shi Ke is plastic the combinative way that another differentia is them is not quite same, pouring the combinative means of makings is silicate cement (tall aluminous fireproof cement) , belong to water rigid to tie kind, but plastic is phosphate serves as bond, combinative means is united in wedlock to heat up rigid, main distinction depends on pouring makings is pouring the drying-out that after construction is over, should undertake a few days, remove the moisture inside material, let material achieve academic intensity as far as possible, make pouring the stock inside makings joins state of pottery and porcelain beforehand. But fireproof but after plastic construction is finished, furnace can leave to move after 24 hours, heating the proper motion in the process is sclerotic, its are in-house moisture comparing is pouring for makings a lot of less, so this have very big different, recommend use corundum to not come Shi Ke is plastic.

Corundum Mo Laishi is pouring makings and corundum are pouring the distinction of makings depends on aluminous content, corundum Mo Laishi is pouring the aluminous content of makings is relatively inferior, corundum is pouring the aluminous content of makings is high, be expect for aggregate and pink with corundum a few more adscititious of bond place preparation fireproof and pouring makings. Have more fireproof than tall aluminium pouring makings and Molaishi are fireproof and pouring the mechanical intensity with more expensive stuff and fight the function such as abrasion, but heatproof shake performance is a bit some poorer. Basically use the liner data that does furnace of kiln of hot-blast stove of boiler, blast furnace, heating furnace, pottery and porcelain to wait for all sorts of kiln furnace.

Corundum pledges commodity chooses Al2O3 content to be more than 90% , the fireproof finished product that gives priority to brilliant photograph with corundum matchs proper dispersive agent, hurried to coagulate the fiber of agent, stainless steel, recipe that presses severity is compound and into. Have high temperature strength good, wear-resisting is fought erode, tall heat conduction, heatproof shake, anti-corrosive, sealing is good fast coagulate to wait for a lot of characteristic by force early.

 

Corundum is pouring expecting is it is principal raw material with electric frit corundum, increase the advanced adventitious that the data such as bond is made and becomes fireproof data, the basis applies place and temperature to differ choose different corundum pouring makings, corundum having chromium is pouring makings, zirconium corundum is pouring makings, palm corundum is pouring makings, compound corundum is pouring makings. Chromic corundum is pouring feed is first use at liner of furnace of aerification of oar of coal of carbon black reaction furnace, water, apply temperature to be in normally 1700 degrees of above. Zirconium corundum is pouring feed is first use at furnace of vitreous profession kiln, fight glass to corrode ability strong, palm corundum is pouring makings wear-resisting function is good, use at heating furnace of liner of canal of coal of power plant gush, boiler, steel rolling normally slippery course. Compound corundum is pouring expecting is the basis applies temperature and environment to differ those who increase specific data to be made is compound model corundum is pouring makings, use at cement rotary kiln normally, nonferrous metal is fused furnace, steely profession.