GB/T 41503-2022 in English
VALIDMonolithic （unshaped）refractory products—Gunning refractory panels by the pneumatic-nozzle mixing type guns
- Issued on:2022-04-15
- Implemented on:2022-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$233.00
《GB/T 41503-2022不定形耐火材料 气动喷嘴混合型喷枪制备耐火喷射料试块》由TC193（全国耐火材料标准化技术委员会）归口，TC193SC3（全国耐火材料标准化技术委员会试验方法分会）执行，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
Pneumatic nozzle mixing spray gun as the core equipment must meet the following parameters:
| Components | Parameter requirements |
|---|---|
| Hose diameter | 32mm when the maximum particle size ≥8mm |
| Air pressure | 0.4-0.7MPa for dense materials and appropriately reduced for lightweight materials |
Key process of test block preparation
- Spray gun control: Water pressure ≥ 150kPa and higher than nozzle pressure
- Support plate arrangement: It needs to maintain a 60-80° inclination and a spacing of 0.5-1m
- Moisture content control: Dense material 2-5%, insulation material 5-12% (mass fraction)
A typical case shows that when a 500mm support plate is used to prepare a test block, the rebound rate is reduced by 18% compared with the conventional process [1]...
Comparison of international standard technology differences
| Differences | GB/T41503-2022 | ISO20182:2008 | Reasons for adjustment |
|---|---|---|---|
| Sample curing | Added anti-seepage membrane coverage and compressed curing cycle when relative humidity is greater than 95% | No humidity guidance value | Adapted to high humidity climate conditions in the south |
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 29650-2013 in English
Refractory products—Determination of resistance to carbon monoxide
2013-09-06 -
GB/T 5069-2024 in English
Chemical analysis of magnesia-alumina refractories
2024-08-23 -
GB/T 37796-2019 in English
Insulation refractories—Determination of thermal conductivity(calorimeter)
2019-08-30 -
GB/T 13794-2017 in English
Pyrometric reference cones
2017-09-07 -
GB/T 38978-2020 in English
Refractory products—Determination of stress-strain (three-point bending method）
2020-07-21 -
GB/T 47098-2026 in English
Refractory products—Determination of reduced species in carbon containing refractories by XRD
2026-01-28 -
GB/T 32833-2016 in English
Determination of spalling resistance of insulating fire bricks
2016-08-29 -
GB/T 18301-2012 in English
Refractory products - Determination of resistance to abrasion at ambient temperature
2012-11-05 -
GB/T 17601-2023 in English
Refractory products—Determination of resistance to acid
2023-08-06 -
GB/T 35172-2017 in English
Determination of corrosion resistance of refractories for cement kilns to CMSW
2017-12-29
