JB/T 10376-2002 Silicon carbide special products Silicon oxide bonded carbon
Some standard content:
ICS25.100.70
Machinery Industry Standard of the People's Republic of China
JB/T10376--2002
Special products of silicon carbide
Silicon oxide bonded silicon carbide plate
Special products of silicon carbide Slab ot silicon dinxide bonded silicon carhidt2002-12-27issued
2003-04-01implemented
issued by the State Economic and Trade Commission of the People's Republic of ChinaForeword
"Standardized
2 Normative document
Product classification,
4 Civil...
General standard board system
4.2 Special function system use
3 Technical requirements
6 Inspection method.
8 Marking, packaging, transportation and storage
Appendix A (normative specification) Jiahua chemical injection board chemical analysis method Ai
Sample Preparation of strips
Determination of silicon dioxide
Summary
......
Reagents, apparatus and equipment
Calculation of carbonization content
Allowed settings
; Determination of diammonium hydride
Key points
Drawing of standard lines
Preparation of test samples
Calculation of the content of triammonium hydride
Allowed error
4. Determination of silicon dioxide.
A.5.] Summary of the method
Drawing of standard lines.
A.5.4. Operating method
A.5.6. Allowed error
The allowable tolerance is as specified in Table A.3.
JI/T10376—2002
Appendix A of this standard is the specification appendix.
This standard is proposed by China Machinery Industry Federation. Foreword
This standard is abrasive material standard. The Technical Committee of the Standardization Bureau of China Carbide Co., Ltd. is responsible for the preparation of the standard. The main drafters of this standard are: Mi Xinting, Dong Qiuyun, Fa Xinmin, Yu Xiaofeng, Chen Chanyou, Fan Xiaowen: JB/T10376-2002
1. Special silicon carbide products
Silicon oxide bonded silicon carbide plate
B/T10376—2002
|This standard specifies the code, size, technical format, inspection method, inspection rules and signs, installation, transportation and storage of oxidized carbonized residual electrodes.
This standard is used for 1. Oxidized silicon carbide plates with working temperature not higher than 4KC. 2 Recommended reference documents
The clauses in the underlined documents are also the clauses of this standard due to the introduction of the standard. For any referenced document with a date, its subsequent new revision (or revised version) shall not be applied to this standard. However, all parties that have reached an agreement on this standard shall use the latest version of this document. For any outdated referenced document, its equivalent version shall be applied to this standard. C151-20) Packing sticker with graphic mark (S0780:199?) GET2997-200m Pirate Dingtong Fire-piercing product density, whole porosity and true porosity test method: cgVS05017:18G0/T 3001-2000
GB/T 30022000
GB/T 5(072--1985
GR/T 7321—1987
G5/F10326—200:
3Product classification
199jin
Test method for flexural strength of shaped refractory products at temperatureeqI505014:1997: Test method for flexural strength of refractory products at temperatureTest method for flexural strength of dense shaped refractory products at room temperatureTest method for shaped refractory products at room temperatureSpecial provisions for the size, appearance and pre-fracture test of shaped refractory products (e7VIS91267 8-1--2:1996 Complete refractory products packaging, marking, transportation and storage of conventional plates, code and mark see Table 1, table
plate punching effect
size mark
JB/1:10376-2002
3.2 Shape of the plate, code and mark see Table 2. Name
Example
Angle plate
Perforated plate
Grid plate
A piece of three-pole solid, the sensitivity,
4 Size
4.1 Dimensions of conventional plate series
4.1.1 Dimensions of wide gauge non-opened plates (OC) E Table 4
4.1.2 Dimensions of common cut and seam (OC-K) are shown in the table, st
wwe/ayut
g/brctb/c
Unit:
15··4G
Dimensions of special-shaped plates series
Dimensions of sheet-shaped plates (0C-T) are shown in Table S.
Technical requirements
Chemical composition and physical properties are as specified in Table 6. Item
Responsibility
Porosity
Constant mechanical bending strength
High sliding strength
14ix)MPaL
Production MPa
5.2 Dimensions are in accordance with the requirements of Table 7:
Size small dead five
450--70C
15 ~25
20-·30
Exchange Station
JB/T10376—2002
Unit: nm
Unit: cn
Unit: mm
JB/103762002
5.3 The surface depth should comply with the provisions of the table.
Size Range
400-- 70C
5.4 Central corner defects shall comply with the requirements of the table
Size
4G0-TOD
5.6 The diameter of the flux and the clear fluid shall be less than 5m, and the depth of dissolution shall be less than 3m58 without stagnant effect
6 Inspection method
6.1 Chemical composition SiC, Sit, PcO Performance record A specified inspection 6.2 Porosity, density according to GB/T2997-2000 provisions for inspection: room temperature flexural strength according to CB/T30012000 provisions, 6.3
High flexural strength according to GB/T3002-200U data for inspection 6.4
6.5 Room temperature industrial strength according to GT5072-1985 provisions for inspection. Permissible deviation
Unit:
Single type,
Allowable length
6.6 Dimension inspection: Use a special ruler with a precision of 0.5mm: Steel ruler according to 310326-200[6.7
Flatness inspection: Use a ruler to cooperate with the inspection tool to escape. 6.B Inspection of angle notch: Use a steel ruler, a standard caliper and a special inspection tool to inspect 6. Hole and full method inspection: Use a small net to lightly clean the surface of the product, and measure the maximum diameter of the drop with a steel ruler after burning. If the surface is rough and identifiable after light processing, it is not considered as corrosion. For cracks with larger loads, use a small chain diameter to slightly drum the main surface, and there are cracks with dull sounds. 6.10
7 Inspection rules
1 Factory inspection
Factory inspection shall be carried out piece by piece in accordance with the provisions of standards 5.2~5.6 7.2 Type inspection
When one of the following situations occurs, a type inspection shall be carried out: a) After the new product is finalized after trial production or the old product is transferred to production: b) After formal production, if the labor is large and the raw materials are changed, which may affect the performance of the product, the formal company shall carry out an open inspection every six months: Corner defects refer to corner defects, which are also included in this inspection as the traces of melt holes under the adhesive. The surface of the product is caused by melting cavities and obvious color spots due to the heat treatment, and the surface of the product is seriously corroded due to chemical changes caused by other miscellaneous products. d) After the product has been discontinued for a long time, the product is resumed.
e: The inspection results are significantly different from the previous type inspection results. The quality supervision agency proposes the requirements for the retrospective type inspection of the product: 7.3 Sampling method
7.3.1 Determination of inspection batches
Each batch of products is an inspection batch
7.3.2 Sample collection
Take a piece of the product from the batch at random and divide it into ten small pieces according to GB/T7321-987. 7.4 Evaluation plan
The samples selected shall be tested according to the test evaluation period in Table [0: Table 10
Product gas rate
Body density
Test resistance
High resistance
Protective seat
8Marking, packaging, transportation and storage
Number of products
Total evaluation number
9.1 The product shall be clearly marked with the date of manufacture and trademark. .2 The packaging shall have the following characteristics:
Evaluation standard
JB/T10376—2002
Number of unqualified products
B.3 The packaging box shall clearly indicate the specifications, number, age, manufacturer, date of manufacture and fragile, moisture-proof words, and shall comply with the provisions of GB/T191-20.
84 The storage and transportation of products should avoid micro-collision and should comply with the provisions of GBTJ6546-996 for packaging, marking, transportation and use of refractory products. www.bzxz.net
JM/T10376-2002
3.1 Scope
Appendix A
(Normative Appendix)
Chemical analysis method of silicon dioxide board This standard specifies the experimental method for the chemical composition of silicon dioxide board products. The standard specifies the experimental method for the determination of the chemical composition of silicon dioxide board products. A.2 Preparation of test samples
The product head is broken on the board 3~m small, take 20g by quartering, put it on the hook and grind it until it passes through the 17-belt net, remove the iron by suction, then put it into the sample bag, put it in the oven at 105~110℃, put it in a container, cool it down, and use
A,3 Determination of silicon carbide
A.3.1 Method Summary
This sample is heat treated with hydrochloric acid and sulfuric acid·nitric acid to remove the residual hydrochloric acid, and then the sample is dissolved in pyrosulfate and hot molten salt to make a soluble block, and then burned at 0℃ for analysis
A,3.2 Reagents, instruments and devices
1 Hydrofluoric acid: 40%.
h) Acid quenching
Calcium pyrophosphate (or potassium hydrogen sulfide, analytical grade, salt solution: 71-1.5+5)
Moisture: 0=1.40gml...
High temperature furnace:
point) 3DmL of gold in a 100ml gold slurry. A.3.S Determination Procedure
4.3.3.1 Prepare 2g of sample, accurately burn to 0.1m in a 0.01% gold machine. Add 2ml of hydrochloric acid, 5-1% acid and 2% nitric acid, place on sandpaper, dry, add amino acid twice, 0.5s, heat to 100°C and grind until the smoke is gone.
4.3.3.2 Add 10g of pyrophosphate to the standard, heat for 1h, and dry until the moisture content is 42%. Heat and dry. Take out the coolant, add 8% hot acid (1-1% hot acid to dissolve, filter with medium-speed filter paper: first use hot acid + 95) 3-4 times: wash with hot steam water, and then use distilled water to sterilize. The paper is first heated to a high temperature of 350-400 °C, and then calcined at room temperature until it is weighed. A.3.4 Calculation of silicon carbide content
The percentage of silicon carbide is calculated according to the formula (A.1: m-)
In the formula:
- The content of silicon carbide, %:
- Weigh the sample amount, unit:
Empty platinum blood, single empty is
m, --- residual liquid and platinum amount, unit:. 6
A.3.5 Allowable error pad
Allowable error is as specified in Table A.1,
j-Test room
Different test rates
A.4 Determination of ferric iron
AA1 Key points of the method
JB/T103762002
Trivalent iron is reduced to divalent iron by hydroxylamine hydrochloride. In the range of H2~9: add o-phenanthroline solution (i.e. o-phenanthroline), which reacts with the divalent ions to form Red compound, by which the trace amount of oxygen is measured, the reaction formula is F
A.4.2 Reagents
A.4.2.1 Blank solution
Take 4g of the solvent in platinum, melt it in a high temperature furnace at 980℃ for 2Umin, take it out and cool it, pour it into the outer wall of platinum III, add 100ml (15+85) hydrochloric acid, heat it up, transfer it into the 2r-thaw volume, dilute it with water to the scale after cooling, shake it, and use it to draw the calibration curve. A.42.2 Tartaric acid solution: 5%.
A.42.3 Salt and hydroxyamine solution: 5%.
A.4.2.4 Nitrate indicator: 0.1%. AM2.5 Nitrogen water: (1+11.
A, 42.8 Hydrochloric acid: (111)
A, 4.2.7 Oxygen solution: 0.1.
Dissolve 0.1g of o-nitrogen: Dissolve it in 10L 95% ethanol, with a water release rate of 1K: A.4.2.8 Iron trioxide standard solution
Weigh 0.2500 ml of ferric oxide (basic reagent) that has been dried at 105℃~10℃ for 2 hours in a 300mL beaker, add 40ml of (1-1) hydrochloric acid, cover with a lid, and heat on a warm sand until dissolved. After it is completely dissolved, cool it. Transfer it into a 10ml volumetric plate and dilute it to the scale with water. According to the data, 1 ml of this stock solution contains 0.251% ferric oxide. Put 100 mL of this stock solution into a 1000 mL volumetric bottle, add 8 ml of tartaric acid, dilute to the mark with water, and stir evenly: this is the standard filter (1 mL contains 0.025 mg/ml of ferric oxide). A.4.3 Drawing of the standard curve
Take 9 portions of 20 mL of blank solution and put them into 50 mL bottles respectively. Use a microplate pipette to add the standard ferric oxide (0.025 mg/ml) one by one: 100 mL, 1.00 mL, 0.20 mL, 0.40 mL, 2.00 mL, 4.00 mL, 6.00 mL, 8.10 mL, 10.00 mL, add 5 mL of tartaric acid concentrate, and pipette to add 5. Add 2 mL of ammonium hydrochloride solution, 2 drops of o-phenanthroline indicator: (1-1) 2% sodium hydroxide solution to adjust color, add (1-1) sodium pyrolysis acid until yellow K disappears, non-excessive 3. Filter, add 5 mL of 1% o-nitrophenol solution, heat in boiling water for 5 min, cool, and dilute to the scale. Filter, use distilled water as reference on the colorimeter: use a 1 cm colorimetric trough, compare at a wavelength of 510 mm, determine its extinction value, and draw a standard line after subtracting the extinction value of white. A.4.4 Preparation of test solution
Standard silicon Weigh 0.1000 g of the sample into 30 mL of platinum solution and add 3 g of mixed solvent. After stirring, cover with 1 g of mixed flux, add, and send the gold into the high temperature 98D to melt at 1 [℃ 1. After the vortex is cooled, fill the wall with distilled water to make the melt adhere to the inner wall. Place a 250mL beaker with 1mL hydrochloric acid (15-85) in a sand bath, heat it, wash the lid with water, transfer it to a 25mL volumetric bottle, cool it down to the scale with water, and use it. A4.5 Operation method
Take 25mL of the test solution prepared in A, t.4. Add 5mL of 5% tartaric acid to a 10mL filter pan, and determine the extinction value according to the following operation drawn by the standard curve. Perform an empty test on the same pair, subtract the extinction value of the room temperature layer, and calculate the content of tri-iron from the standard curve. A, 4, 6 Calculation of titanium oxide content
The percentage of ferrous oxide is calculated according to formula (A.2): Fe:O
K, -A.VX10 -
The percentage of ferric oxide, %:
The conversion coefficient of ferric oxide and light sensitivity:
V-: The sample liquid is taken, unit is mT
Re-measurement coefficient:
The amount of sample taken, unit is 2
A.4.7 Allowable error
No non-error is subject to the provisions of Table 2.
Containing disk flower
-11 50
A.5 Determination of silicon dioxide
A.5.1 Summary of the method
Same as the word
Charge
Different experiment room
In the acidic medium with H value of 0.5, carbonic acid and sulfuric acid form a silicon phase acid product, which is then selected as silica blue. The color determination is as follows: H5SiO:+12H2MoO:+H:[Si (MoO,) s] - 10H,0HaS（MaO+[this original judgment]+H
A.52 Reagents
A,5.2.1 Prepare sand and carbon mud by mixing reagent
+[oxygen ratio reagent 1+H.0
Take sand (Na:D0, 10HO) 2 parts and anhydrous sodium carbonate 2 parts in agate to create fine mud, set the bottle, A.5.22 salt formaldehyde: (15 + 85)
A.5.2.3 ammonium chloride solution: 5%.
Dissolve 5g of sodium tartaric acid in water, dilute with water to 0.0, and use it for 24 minutes. If it precipitates, wash it and prepare it. Then prepare A.52.4 tartaric acid solution: 5%
A.52.512.4-acid reducing agent according to
Dissolve 1,2,4-acid 0.1, anhydrous arsenic acid 0.7, arsenic acid in dry water, add water to 1, and store it in a bottle. The liquid will be heated to 2 degrees. If it exceeds 2 degrees, stop adjusting and re-prepare. 8
A.5.2.6 Standard reagent for carbon dioxide
JB/T10376—2002
Take 1000g of the oxide (reference reagent) calcined at 980°C~1000°C for 1h, add 2% sodium carbonate (basic reagent) into 30mL of 1% sodium hydroxide, mix well, melt in a high temperature pan at 0°C~100°C for 20min, take the softest and fastest melting products, adhere to the inner wall of the pan, cool, remove the filtrate, place it in a vinyl beaker with a small heat setting, cool the filtrate, put it into a 1000r volumetric flask, dilute it to the mark with water, shake well, and transfer it to a clean and dried plastic bottle for storage. This product contains a total of 1% sodium hydroxide. 0.me
Pull the stock solution [00] pre-magnetized with 10:n12mol/L convex acid into a 200ml volumetric bottle, mark the dilution rate with water, according to the sentence, that is, % two packets of chemical standard solution (1ml. Combine 0.05mg of silica!. A.5.2.7 Blank solution
Put g mixed flux into platinum and melt in a high-temperature furnace at 950°C for 20min. Remove from the blank solution, cool it down, wash the platinum tree and add salt (15 + 5) 100mL to heat it, weigh it into a 250ml volumetric bottle, cool it down, dilute it with water to the scale, control the spoon, and set it aside. A,5.3 Drawing of the standard line
Pull 5ml of the blank solution into 8 portions, and put them into 8 100mL signature bottles respectively. In a volumetric flask, add standard silica gel (5mg/ml) 0.mlL, 0.20ml, 0.50ml, 1.00ml, 2.00ml, 4.00l, 6.00l, 8.00ml, 15% sodium sulfate 5ml, water 10ml, and let it develop color (the effect should be above 15°C and placed in a filter towel for 10min. The effect should be above 15°C and placed in a filter holder for color development). Add 2ml of 5% tartaric acid solution, 1, 2, and 3% acid reducing agent solution, mix well, place in a room temperature for 10min, dilute with water, and use distilled water as the colorimeter. Use 1cm colorimeter at a wavelength of 70° to determine the extinction value by colorimetry. Subtract the extinction value from the original. Standard, comprehensive standard preparation line, A.5.4 operation method
Collect 20:mL of the preparation in A.44 and filter it into a 100ml standard bottle, adjust the volume, and then transfer 20mz from the 100ml container bottle into a 10KhmL empty container, and then add 5% ammonium sulfate to the mixture, and then determine the extinction value according to the operation of the standard curve. At the same time, put a blank for the test, and after subtracting the extinction value of the blank, calculate the silicon dioxide content on the standard curve. Each time, the blank test must be performed according to the same analysis steps to calibrate the results. A.5.5 Calculation of silicon dioxide content
The silicon dioxide content is calculated according to formula (A.3) Si, =
In the formula:
X: -A-YX10\3
% content of silicon dioxide, free;
: Concentration of silicon dioxide and conversion factor of photometry: Absorbance:
: Vertically take liquid, unit is mL;
Weight conversion factor;
Weigh the amount of sample. Single name.
A.5.6 Allowable error is in accordance with the provisions of Table A.3
Taiwan Guifan
To the experimental space
Degree difference in sweat
Different laboratories
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