JC/T 493-2015 in English
VALIDFused cast AZS refractories for glass furnace
- Issued on:2015-07-14
- Implemented on:2016-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$360.00
$350.00
$350.00
| Standard No: | JC/T 493-2015 |
| Document status: | VALID |
| Title in English: | Fused cast AZS refractories for glass furnace |
| Title in Chinese: | 玻璃熔窑用熔铸锆刚玉耐火制品 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2015-07-14 |
| Implemented on: | 2016-01-01 |
| Superseding: |
JC 493-2001 Fused cast AZS refractories for glass furnace
|
| ICS Classification: | 81.080-Refractories |
| Chinese Classification: | Q44-Special refractory |
| Professional Classification: | JC-Building Material |
| Related Keywords: | ≤1.5 ≤1.0 ≤1.0 glass
conditions glass phase seepage glass furnace introduction core revisions cast azs refractories glass |
| Related Topics: | jc/t2314-2015
jc/t2337-2015 glass melting jc/t493-2015 jc/t 493-2015 jc t 493 2015 glass frit jc/t493 glass frit Furnace jc/t+493 jc/t 493 glass melting furnace Fused Zirconia Corundum Refractory Products for Glass Furnaces Fused glass Fused zirconium design jc/t2341-2015 |
本标准规定了玻璃熔窑用熔铸锆刚玉耐火制品的术语和定义、产品分类与标记、技术要求、制样、试验方法、检验规则以及标志、包装、运输、储存和质量证明书。
本标准适用于玻璃熔窑用熔铸锆刚玉耐火制品。
Introduction
Core revisions to the standard
| Revisions | 2001 Edition | 2015 Edition | Technical Significance |
|---|---|---|---|
| Classification of Zirconia Content | Undefined classification | AZS33/36/41 three-level system | Refine product performance gradient |
| Casting process | 2 types | PT/QX/ZWS/WS four types | Adapt to different kiln working conditions |
| Glass phase seepage | Not specified | 1500℃×4h test | Control the risk of high temperature crystallization |
Analysis of key technical indicators
Comparison of typical grades
| Parameters | AZS33-Y | AZS36-Y | AZS41-Y |
|---|---|---|---|
| ZrO2 content (%) | 32-36 | 35-40 | 40-44 |
| Corrosion resistance rate (mm/24h) | ≤1.60 | ≤1.50 | ≤1.30 |
| Apparent porosity(%) | ≤1.5 | ≤1.0 | ≤1.0 |
Glass melting furnaceKey parts recommendations:
- Melting pool wall: AZS41-WS type is preferred
- Liquid flow hole: AZS36-ZWS type is recommended
- Feeding port: AZS33-QX type is applicable
Implementation and application points
Key to quality acceptance
- When the batch is ≤300 tons, the bulk density needs to be fully inspected (error <50kg/m3)
- The flatness of the finished surface is ≤1mm, and the casting surface allows a 2mm deviation
- The joint of the pre-assembled bricks must be ≤1mm (negotiable for special working conditions)
Treatment of common problems
When fused-cast zirconium corundum products have network cracks:
- Width ≤1.0mm and not exceeding 1/2 of the surface width is acceptable
- Cracks across edges are only allowed to cross a single edge line
- Cracks at the corners of the channel bricks> 40mm should be scrapped
Sample only — not a preview of JC/T 493-2015
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