Ronghua Refractory Technology Co., Ltd. focuses on the research and development and manufacturing of refractory materials and has cooperated with many high-temperature companies around the world for many years.
To reduce the porosity of heat preservation brick, improve the quality of heat preservation brick, must rise shape pressure. To brick of common heat preservation, shape pressure should achieve 137MPa; Of brick of high density heat preservation shape pressure should be inside limits of 176 ~ 215MPa. That is to say, the friction that introduces 250t above only presses bricky machine to shape, ability obtains this...
The main train of thought that a few years fireproof data industry will grow henceforth and target are: Combine our country national condition and condition of resource of fireproof raw material, adopt the way that connotation gives priority to, strengthen management, improve quality in the round, adjust product structure, mutiple level the ground develops fireproof material variety, in order to satisfy the demand of business of iron and steel of disparate arrangement of ideas to fireproof material...
Besides building arenaceous stone, use the raw material of natural state so extensively like firebrick without which kind of products, clay, tall aluminous alumina, common magnesia (intermediate above magnesia uses leveling to calcine) , the raw material such as chromic mine, they are taking the birthmark that the god leaves to enter firebrick product line, produced the majority fireproof material product, this...
Make aggregate with andalusite, silicon line stone makes the grain intermediate, the collective fine crocus of pink of aluminium powder of oxidation of pink of silicon line stone, aluminous pink, industry, clay makes matrix makings can make agglomeration Mo Laishi brick. Its raw material deserves to fall for instance: Aggregate: Intermediate grain: Fine pink =50: 12: 38. In burden from compound bond, with 260t attrition is pressed
When pug of preparation silica brick, the useless silica brick of certain amount is added normally in burden, its purpose is expanding at reducing what arise when silica brick goods is firing with stress, reduce the generation of crackle, raise n. Its join the appearance of quantity and brick and weight to concern. The different that is less than 25kg to weight brick can be joined 20% ; The different of 25kg above brick...
In recent years, the fireproof data industry of our country gained very great success, mastered the production of all sorts of grade firebrick, among them, what ought to put forward especially is the manufacturing technology of Mo Laishi brick and recrystallization corundum brick. Mo Laishi brick besides have very tall fireproof degree beyond, still have very high density and mechanical strength. Recrystallization corundum...
Aluminous brick of oxidation object height is in use process, slaggy easily from heat face (working surface) in penetrate its interior, make the porosity near working surface remarkable reduce and compact change, build very thick degenerative layer. When temperature when acuteness change, between layer of former brick of degenerative layer island the boundary can arise to make with the chap of working surface parallel brick...
The of check of appearance of classics of heat preservation brick after giving pit, manage changes function certificate of proof, with 200 ℃ roast 2h, the macerate in the phosphoric acid that makes up beforehand is entered in hot state transfer to a lower level. In macerate process, the open pore infiltration of brick of phosphoric acid edge, with the brick medium SiO2, Al2O3 reacts, make phosphatic compound, fill up at air hole in, reduce consequently...
In recent years, the fireproof data industry of our country gained very great success, mastered the production of the firebrick of earth of tall aluminous oxygen of all sorts of grade, the manufacturing technology of the Mo Laishi firebrick that ought to put forward especially among them and recrystallization corundum firebrick. Mo Laishi firebrick besides have very tall fireproof degree beyond, still have very high density and opportunity...
Firebrick is applied to widely metallurgical industry, mechanical production industry, experienced anxious industry, power industry and a series of major industry department, for example chemical industry and include itself of fireproof data industry inside silicate industry. The main service object that we also had mentioned firebrick is metallurgical industry. Accordingly, below will be main...
Below the premise condition that fireproof material secures in chemical composition, the uniformity that distributings as a result of composition differs with what machine craft, size of the mineral sort that makes goods medium, amount, grain and combinative position are different, of this kind of micromechanism different, create the difference of goods function. For example, the silicon simple product with Si02 same content, because of Si02...
It is early at the beginning of 90 time, england thinks the scientist realises applied lithofacies learns a method to study the value of fireproof material, put forward about all sorts of mineral groups in fireproof material yuan the deeply touched that concerns between structure and photograph reads aloud. Getatable data is very commendable, the fireproof stuff that can know to make one gives chemical composition not only how...