研磨用黑刚玉 各种粒度黑刚玉
黑刚玉简介：
黑刚玉又名低铝刚玉、青刚玉，是于电弧炉中，将铝矾土熔炼而制得的一种AL2O3和铁尖晶石为主矿相的灰黑色结晶体，其特点是AL2O3含量较低，并有一定量的Fe2O3（10%）存在，因而具有硬度适中、韧性大、自锐性、粘结性良好，耐用度高，磨削时发热少，耐高温，不易划伤工件表面，工件表面光洁度高等特点。
黑刚玉物理性能指标：
项 目 | 指 标 | 项 目 | 指 标 |
颜 色 | 黑色 | 最高使用温度（℃） | 1850 |
晶形 | 三方晶系 | 真密度（g/cm3） | ≥3. 50 |
硬度（莫氏） | ≥9.0 | 线膨胀系数（0—1600℃） | 7—9 |
熔点（℃） | 2050 |
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黑刚玉用途：
黑刚玉主要应用于自由研磨，如金属零件电镀前底面抛光、铝制品，适用于自行车、摩托车、缝纫机、钟表零部件、灯饰、塑胶及五金工具等的抛光，亦适用于喷砂（除锈、玻璃喷花），加工材料，制造树脂切割片、角磨片和涂附磨具等。黑刚玉粒度砂和微粉特别适合于不锈钢工件的研磨抛光及油石、研磨膏的制造，黑刚玉段砂更是防滑路面和煤矿坑下仓储的首选材料。
黑刚玉使用参考：
粒度编号 | 粒径(um) | 规格 | 特点 | 用途 |
16# | 1400 | 形狀：多角形 典型成份(％)： | 产品硬度适中，韧性较大耐磨棱角锋利，自锐性强，抛光加工工件洁度高，其抛光性能大大高于国内外其他同类产品，广泛应用于餐具行业，电镀行业，金属表面处理行业，玻璃制品行业。 | 广泛地应用于不锈钢餐厨具，灯具灯饰摩托车零件，汽车配件等中等硬度材料的精细抛光，其抛光的各种性能、效果可于日本黑刚玉砂相媲美。 |
24# | 850 | |||
30# | 710 | |||
46# | 425 | |||
60# | 300 | |||
80# | 212 | |||
100# | 150 | |||
120# | 125 | |||
150# | 106 | |||
180# | 90 | |||
220# | 75 | |||
280# | 50 | |||
320# | 40 |
黑刚玉价格：
在磨料产品中，棕刚玉、白刚玉、黑刚玉同样都是以铝矾土为主要原料，加有铁屑在高温电弧炉中熔炼而成的，为什么黑刚玉的价格在其中是最低的呢，在市场上铝的价格比铁的价格每吨要高出好多，棕刚玉一级砂的三氧二化铝的含量在95%以上，而黑刚玉一级砂的三氧二化铝含量才达到85%，在此就可以看出黑刚玉价格低的原因了。
黑刚玉的价格低但是在抛光、喷砂效果都是很好的，尤其是在做防滑地面上既实惠做出来的路面防滑效果又好，所以很多人在做防滑路面时都首先考虑选用黑刚玉。
Black corundum introduction:
Black corundum and name low aluminum corundum, blue corundum, is in electric arc furnace, bauxite smelting and system of a kind of AL2O3 and hercynite is given priority to ore phase to black crystal, its characteristic is AL2O3 content is low, and have a certain amount of Fe2O3 (10%) exist, thus has moderate hardness, toughness, self sharpness, caking property is good, durable degree is high, this produce less heat, high temperature resistant, is not easy to scratch the surface of workpiece surface finish higher characteristic.
Black corundum physical performance indicators:
Item mesh refers to the scale of mesh refers to the scale
Facial color black top using temperature (℃) 1850
Crystalline form trigonal system true density (g/cm3) was 3. Fifty
Hardness (Morse) was 9.0 coefficient of linear expansion (0-1600 ℃) 7-9
Melting point (℃) 2050
Black corundum USES:
Black corundum is mainly used in free grinding, such as metal parts before plating base polishing, aluminum, suitable for bicycle, motorcycle, sewing machines, watches and clocks, spare parts, lamp act the role ofing, plastic and hardware tools, polishing, and is also suitable for sand (derusting, glass spray flower), processing materials, manufacturing resin cutting disc, Angle grinding slice and coated with abrasive tool, etc. Black corundum size sand and micro powder particularly suitable for grinding and polishing stainless steel workpieces and stone, paste manufacturing, black corundum period of sand is slippery road surface and coal mine under the first choice of material storage.
Black corundum price:
In the abrasive products, brown fused alumina, white corundum, black corundum also are bauxite as main raw materials, with iron in high temperature electric arc furnace in melting and become, why black corundum price among them is the lowest in the market? And aluminum price is the price of iron per ton higher a lot, brown corundum level sand three oxygen second change the content of aluminum in more than 95%, and the black corundum level sand three oxygen second change of aluminium content to 85% in this we can see that black corundum price low reason.
Black corundum price low but in polishing, sandblasting effect is very good, the best is slippery ground not only benefits to make the pavement skid the effect is good, so a lot of people doing slippery road surface is first consider to choose black corundum.
联系方式：
巩义市久久抛光磨料厂
联系人：苏晨丹
电话：18939514537
座机：0371-60329928
传真：0371-60329928
QQ：1985802059
邮箱：1985802059@qq.com
网址：http://shop1368119030228.cn.alibaba.com
产品展示：
联系方式：
巩义市久久抛光磨料厂
联系人：苏晨丹
电话：18939514537
座机：0371-60329928
传真：0371-60329928
QQ：1985802059
邮箱：1985802059@qq.com
网址：http://shop1368119030228.cn.alibaba.com
