耐侵蚀耐低温锆英砂 窑炉工业窑炉用保温材料 EPS

发布日期 :2017-07-11 16:20 编号:4459748
供货厂家
荥阳绿阳磨料有限公司
形状
片状
形态
层状
使用温度
500
报价
11600.00元/吨
联系人
张俊举(先生)
电话
177 - 37318995
询价邮件
1468515408766
区域
郑州锆英砂/粉
地址
中国河南郑州荥阳市中原西路五洲城A6区-1029
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       单位称号:荥阳绿阳磨料无限公司   

       单位地址:河南省荥阳市中原西路五洲城A6区-1029

       联络人:张经理

       联络电话:17737318995

       邮箱:3471812669@qq.com

       Q Q: 3471812669

 


 

锆英砂简介

       锆砂亦称锆英砂、锆英石,是一种以锆的硅酸盐(ZrSiO4)为次要组成的矿物。污浊的锆英砂为无色通明晶体,常因产地不同、含杂质的品种与数量不同而染成黄、橙、红、褐等色,结晶结构属四方晶系,呈四方锥柱形,也成不规定粒状,性脆,断口贝壳状。是优质的耐火资料,多与钛铁矿、金红石、独居石、磷钇矿等共生于海滨砂中,经水选、电选、磁选等选矿工艺分选后而失去。比重4.6~4.71,比重的变动有时与成分和蚀变形态无关锆英石解理不齐全,平均莫氏硬度为7~8级,折射率1.93-2.01,熔点随所含杂质的不同在2190~2420℃内动摇。次要化学组成为ZrO2;SiO2,及大批Fe2O3、CaO、AI2O3等杂质。锆英砂的实践组成为ZrO2:67.1%;SiO2:32.9%。它是ZrO2-SiO2系惟一的化合物,但自然锆砂仅含约57~66%ZrO2。

锆英砂特点

       1、热收缩系数小,功能可与锆英砂媲美,用其配制型砂,铸件不会产生收缩缺点;

       2、砂粒为球形,活动性好,易舂实,且透气性好;

       3、外表润滑,构造致密,使得粘结剂能平均笼罩;

       4、宝珠砂属中性资料,酸、碱粘结剂均可应用; 

       5、回用再生功能好,;

       6、耐火度高,易溃散;

       7、热导率大,稳固性好,不龟裂;

锆英砂理化目标

ZrO2

67.1%(自然锆英砂含量约57-66)

SiO2

32.9%

比重

4.4-4.8

pH值

4.56

堆密度(g/cm3)

2.9—3.1

真密度(g/cm3)

4.4—4.71

晶系

结晶结构属四方晶系

外观

呈四方锥柱形

比重

4.6-4.8

莫氏硬度

7.5-8

折射率

1.93-2.01

熔点

2750

次要成分

ZrO2;SiO2,及大批Fe2O3、CaO、AI2O3等杂质

使用

铸造,陶瓷,耐火资料

粒度

锆英砂普通为80-120目。 

 

锆英砂使用

       锆英砂(锆英石)用于耐火资料(称锆质耐火资料,如锆刚玉砖,锆质耐火纤维),铸造行业铸型用砂(精细铸件型砂),精细搪瓷用具,此外也用于玻璃、金属(海绵锆)以及锆化合物(二氧化锆、氯氧化锆、锆酸钠、氟锆酸钾、硫酸锆等)的消费中。可制造玻璃窑的锆英石砖,盛钢桶用锆英石砖、捣打料和浇注料;增加到其它资料中可改善其功能,如分解堇青石中增加锆英砂,可拓宽堇青石的烧结范畴,而又不影响其热震稳固性;在高铝砖中增加锆英砂,制作抗剥落高铝砖,热震稳固性大大进步;还可用于提取ZrO2。锆英砂可做铸造用优质原砂,锆英砂粉是铸造用涂料次要成分。

 



Introduction of zircon sand
Zircon sand which is also called zircon sand, zircon, is a kind of zirconium silicate (ZrSiO4) as the main composition of minerals.Pure zircon sand is colorless transparent crystal, often producing area different, the amount and type of impurities and dyed yellow, orange, red, brown wait for color, crystal structure belongs to tetragonal crystal system, the quartet cone column, also into irregular granular, crisp, conchoidal fracture.Is high quality refractory materials, multiple and ilmenite, rutile, monazite, yttrium phosphate ore were in beach sand, such as the water concentration, electric separation, magnetic separation beneficiation process after sorting and etc.Sometimes the specific gravity of 4.6 ~ 4.71, the proportion of changes related to the composition and altered state of zircon cleavage is incomplete, even mohs hardness of 7 ~ 8, the refractive index of 1.93-2.01, melting point with different impurities contained in the 2190 ~ 2420 ℃.The main chemical composition of ZrO2,SiO2, and a small amount of Fe2O3, CaO, AI2O3 impurities.Zircon sand of theory for ZrO2:67.1%;SiO2:32.9%.It is a compound of ZrO2 - SiO2 is the only, but natural zircon sand only contains about 57 ~ 66% ZrO2.
Characteristics of zircon sand
1, small thermal expansion coefficient, performance can be comparable to the zircon sand, with the mixed sand, casting defects will not produce inflation;
2, sand is spherical, good liquidity, easy mixture is real, and the permeability is good;
3, the surface is smooth, dense structure, and makes the binder can uniformly covered;
4, treasure sand is a neutral materials, acid, alkali binder can be used; 
5 and the regeneration performance is good, cost-effective;
6, high refractoriness, easy to pieces;
7, large thermal conductivity, good stability, no crack;

Zircon sand application
Zircon sand, zircon) used for refractory material (called zircon refractory materials, such as zirconium corundum brick, zircon refractory fiber), the mould with sand in foundry industry, precision casting sand), precision enamelware, also used in glass, metal (zirconium sponge and zirconium compound (zirconium dioxide, zirconium oxychloride and zirconium sodium, potassium fluoride zirconate, zirconium sulfate, etc.) of production.To make glass kiln zircon brick, ladle with zircon brick, ramming material and castable;Added to the other materials can improve its performance, such as synthetic cordierite add zircon sand, can broaden the range of sintered cordierite, without affecting the thermal shock resistance;Zircon sand is added in the high alumina brick, making spalling high alumina brick, thermal shock stability is greatly improved;Can also be used for extraction of ZrO2.Zircon sand casting with high quality can do the original sand, zircon sand powder main composition is foundry coatings.

 


 
















 



















         单位称号:荥阳绿阳磨料无限公司   

       单位地址:河南省荥阳市中原西路五洲城A6区-1029

       联络人:张经理

       联络电话:17737318995

       邮箱:3471812669@qq.com

       Q Q: 3471812669

耐火温度1770~2000℃(℃)产地河南品牌绿阳产品类别窑炉工业窑炉用保温材料材质EPS导热系数(常温)0.035等级一级低温弯折≤100断裂伸长率80抗弯强度50抗压强度600拉伸强度10使用温度500形态层状形状片状
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