现货供应喷砂金刚砂|黑碳化硅|绿碳化

 现货供应喷砂金刚砂|黑碳化硅|绿碳化

碳化硅简介：

 

  碳化硅（SiC）是用石英砂、石油焦（或煤焦）、木屑为原料通过电阻炉高温冶炼而成。碳化硅在大自然也存在罕见的矿物，莫桑石。 碳化硅又称碳硅石。在当代C、N、B等非氧化物高技术耐火原料中，碳化硅为应用比较广泛、比较经济的一种。可以称为金钢砂或耐火砂。碳化硅是用石英砂、石油焦（或煤焦）、木屑（生产绿色碳化硅时需要加食盐）等原料在电阻炉内经高温冶炼而成。目前我国工业生产的碳化硅分为黑色碳化硅和绿色碳化硅两种，均为六方晶体，比重为3.20～3.25，显微硬度为2840～3320kg/mm2。

 

磨料磨具用碳化硅国家标准 磨料磨具用碳化硅     GB 2480－83 本标准适用于制造磨具或作研磨材料等用的碳化硅。 技术条件 1化学成份应符合下表规定：
粒度范围		SiC不小于	游离碳不多于	Fe2O3% 不多于
黑碳化硅	12＃－90＃	98.5	0.2	0.6
	100＃－180＃	98	0.3	0.8
	220＃－240＃	97	0.3	1.2
绿碳化硅	20＃－90＃	99	0.2	0.2
	100＃－80＃	98.5	0.25	0.5
	220＃－240＃	97.5	0.25	0.7
	W63－W20	97	0.3	0.7
	W14－W10	95.5	0.3	0.7
	W7－W5	94	0.3	0.7
2.密度：46＃粒度（代表号）绿碳化硅不小于3.18克/厘米3.黑碳化硅不小于3.12克/厘米. 3.粒度组成：应符合GB2477－83《磨料粒度及其组成》的规定 4.铁合金粒的允许含量：30＃及以粗的各号以不通过45＃筛的铁合金粒为零；36＃至90＃各号以下通过粒度检查时比较低层筛号的铁合金粒为零；100＃及以细各号以不通过粒度筛检查时混合粒下层筛的铁合金为零。 5.磁性物允许含量：12＃至240＃的磁性物含量不大于0.20％.

碳化硅指标：

碳化硅用途：

 

(1)作为磨料，可用来做磨具，如砂轮、油石、磨头、砂瓦类等。

(2)作为冶金脱氧剂和耐高温材料。

    碳化硅主要有四大应用领域,即: 功能陶瓷、高级耐火材料、磨料及冶金原料。目前碳化硅粗料已能大量供应, 不能算高新技术产品,而技术含量极高 的纳米级碳化硅粉体的应用短时间不可能形成规模经济。

(3)高纯度的单晶，可用于制造半导体、制造碳化硅纤维。　

 

    黑碳化硅称为黑碳化硅粒度砂，黑碳化硅分黑碳化硅粒度砂和黑碳化硅微粉两大类产品.

    黑碳化硅粒度砂是用碳化硅自然块经过粉碎,研磨,酸碱洗,水洗,烘干,筛分等工艺,原料：石英砂(Sio2)和无烟煤或石油焦(c)，在摄氏1800度以上高温条件下生成的非金属矿产品,它具有硬度高,膨胀系数小,性脆,导热性好等特点,广泛应用于磨料磨具,电子产品研磨,耐火材料,特种陶瓷,泡沫陶瓷,涂料塑料添加改性,汽车配件,军工航空,炼钢用脱氧剂等.

 

耐火材料用碳化硅 在生产和加工碳化硅过程中有大量碳化硅含量90%以下的碳化硅形成与产出,俗称为低硅.低含量碳化硅的主要用途为耐火材料行业,炼钢行业的脱氧剂,炮泥,浇铸料,铁沟料.我公司每年有5000吨以上的低含量碳化硅供该类产品含量分布为:90%,88%,85%,80%,75%,70%,65%,60%,55%,50%,45%,40%.粒度以60#以细为主。

耐火材料用碳化硅部分理化指标: JB/CQ   6001－82本标准适用于制作耐火材料使用的碳化硅砂或作耐火砂耐火泥用的碳化硅砂

一.名称及代号 耐火材料用碳化硅的名称、代号及特征见表。

 

2.耐火材料用碳化硅砂的粒度规格为3.15mm以细。其中3.15-0.1mm者应占85%以上。 注：用户如有特殊要求，允许按照用户要求的粒度生产。

3.耐火材料用碳化硅中不得混有肉眼可见的低熔点夹杂物（如金属屑）等。

 

碳化硅规格：

生产执行标准为中国标准,国际标准,日本标准,欧洲标准.

我公司生产的欧洲标准的产品型号如下:

F6,F8,F10,F12,F16,F18,F20,F22,F24,F30,F36,F40,F46,F54,F60,F70,F80, F90,F100,F120,F150,F180,F220,F240

 

粉状黑碳化硅产品:1.采用干法,湿法,干湿相结合的方法生产碳化硅微粉,以适用于不同产品的不同需求.产品主要用于耐火材料类产品的制造,泡沫陶瓷行业,太阳能硅板切割,水晶切割研磨,汽车发动原件制造,特种涂料行业,塑料制品改性,脱硫供电环保行业等.2.黑碳化硅微粉按中国及欧洲标准分类的型号为:中国标准:W63,W50,W40,W28,W20,W14,W10,W7,W5,W3.5,W2.5,W1.5；欧洲标准:F280,F320,F400,F500,F600,F800,F1000,F1200,F1500,F1800；同时,我公司还可以生产日本标准,及按客户需要的非标产品,特殊需要的产品,分布范围大的产品,含量不同的产品

 

Silicon carbide introduction:

 

Silicon carbide (SiC) is using quartz sand and petroleum coke (or coke), sawdust as raw material through high temperature resistance furnace smelting and become. Silicon carbide in nature there are also rare mineral, the mo SangShi. Silicon carbide is also called carbon silica. In the contemporary C, N, B cells and other high technology not oxide refractory raw material, silicon carbide is the most widely used and the most economic one. Can be called corundum or refractory sand. Silicon carbide is with quartz sand and petroleum coke (or coke), wood chip (production green silicon carbide need add salt), and other raw materials in internal resistance furnace high temperature smelting and become. At present our country industrial production of silicon carbide is divided into black silicon carbide and green silicon carbide two kinds, all is the six-party crystal, specific gravity of 3.20 ~ 3.25, microhardness for 2840-3320 kg/best callus induction.

 

Abrasives with silicon carbide national standard abrasives with silicon carbide GB 2480-83 the standard is applicable to manufacturing grinding tool and abrasive materials with silicon carbide. Technical conditions and chemical composition should accord with the requirement listed in table below:

Particle size range SiC not less than free carbon not more than Fe2O3 % less than

Black silicon carbide 12 # - 90 # 98.5 0.2 0.6

# 100-180 # 98 0.3 0.8

# 220-240 # 97 0.3 1.2

Green silicon carbide and # - 90 # 99 0.2 0.2

# 100-80 # 98.5 0.25 0.5

# 220-240 # 97.5 0.25 0.7

W63 - W20 0.3 0.7

W14 - W10 95.5 0.3 0.7

W7 W5-0.3 0.7

2. Density: 46 # size (representative, green silicon carbide not less than 3.18 g/cm 3. Black silicon carbide not less than 3.12 g/cm. 3. Grain composition: should comply with the GB2477-83 "abrasive particle size and its composition" regulation 4. Iron alloy grain allow content: 30 # and thick each number with through the 45 # screen of ferroalloy grain is zero; 36 # and 90 # the number following through to size inspection at the bottom of the screen size of iron alloy grain is zero; 100 # and fine each number with through the size screen inspection mixed grain lower screen of ferroalloy is zero. 5. Magnetic material allows content: 12 # and 240 # magnetic content is not more than 0.20%.

Silicon carbide index:

 

Silicon carbide < * > purpose:

 

(1) as abrasive, can be used to do grinding tool, such as wheel < * >, stone < * >, grinding head < * >, sand tiling, etc.

(2) as metallurgy < * > scavenger and high temperature resistant material < * >.

Silicon carbide mainly has four major application fields, namely: functional ceramics, senior refractories, abrasive and metallurgical raw materials. At present silicon carbide coarse material has been able to supply in large quantities, cannot calculate high-tech products < * >, and technology content high nanoscale silicon carbide powder application short time can't form scale economy.

(3) of high purity crystal, can be used in the manufacture of semiconductor, manufacturing silicon carbide fiber < * >.

 

Black silicon carbide is called black silicon carbide particle size sand, black silicon carbide points black silicon carbide particle size sand and black silicon carbide powder two categories of products.

Black silicon carbide particle size sand is to use silicon carbide natural block after crushing, grinding, acid and alkali washing, washing, drying, screen classification process, raw materials: quartz sand (Sio2) and anthracite coal or petroleum coke (c), in more than 1800 degrees Celsius temperature conditions generated non-metallic minerals, it has high hardness, low expansion coefficient, sex brittle, thermal conductivity and other characteristics, widely used in abrasives, electronic products grinding, fire-proof material, special ceramics, foam ceramics, coating plastic additives modification, auto parts, military aviation, steel with scavenger, etc.

 

Refractory with silicon carbide in the production and processing of silicon carbide in the process to have a large number of silicon carbide content below 90% silicon carbide formation and output, better known as the low silicon. Low content of silicon carbide main purpose for refractory industry, steel industry scavenger, stemming, casting material, iron groove material. My company every year 5000 tons of low content of silicon carbide supply, this kind of product content distribution for: 90%, 88%, 85%, 80%, 75%, 70%, 65%, 60%, 55%, 50%, 45%, 40%, particle size on sixty # to fine give priority to.

Refractory with silicon carbide part of the physical and chemical indicators: JB/CQ 6001-82 the standard is applicable to production refractory use silicon carbide sand or refractory sand refractory mortar with silicon carbide sand

A. Name and code refractory with silicon carbide name, code and characteristics of the table.

Name appearance SiC F.C Fe2O3 % or less or more or less

Advanced silicon carbide refractory sand black coarse crystal 0.3 0.5

Silicon carbide refractory sand black coarse crystal and fine crystal 2.5 2

Common silicon carbide refractory sand black fine crystal, 75 2

 

2. Refractory with silicon carbide sand particle size specification of 3.15 mm to fine. The 3.15-0.1 mm person should account for more than 85%. Note: if users have special requirements, according to user's request to allow the size production.

3. With refractory

 

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