Refractory material containing barium oxide
A technology of refractory material and barium oxide, applied in the field of refractory material, can solve the problems of slow hardening, low bonding strength, easy to burst and so on
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0021] Using barium carbonate and industrial alumina as raw materials, the raw material is prepared according to the ratio of 197.35:101.96. After mixing, grinding, kneading, forming and drying by conventional processes, the clinker is obtained by calcining at 1500°C for 4 hours, and then finely Grinding barium aluminate cement. X-ray examination showed that the cement contained only BA, and the content of other substances was less than the detection limit.
[0022] The proportion of refractory mud is:
[0023] <0.088mm fused corundum 50%;
[0024] 20% of the aforementioned BA cement;
[0025] Aluminum oxide powder 20%;
[0026] Silica fume 10%;
[0027]Add 3% retarder tartaric acid.
[0028] After the sample is mixed with water at 7°C, it can be formed for about 1 hour, and can be demoulded after 2.5 hours. After curing for 6 hours, the sample is treated at 110°C for 6 hours, and the compressive strength is 144Mpa. After adding the coagulant, the refractory mud made of ...
Embodiment 2
[0030] Prepare cement by the method for embodiment column 1. The proportion of refractory concrete is:
[0031] 5-1mm fused corundum 50%;
[0032] 1-0.088mm fused corundum 20%;
[0033] 30% of the prepared refractory powder according to embodiment 1.
[0034] The samples were formed, cured and dried according to the method in Example 1, and then heat-treated at different temperatures. The performance of the trial product is as follows:
[0035] Heat treatment conditions Flexural strength Mpa Compressive strength Mpa Linear change%
[0036] 110℃×24H 19.8 139
[0037] 1100℃×3H 17.4 113 0.04
[0038] 1500℃×3H 27.7 155 -0.02
[0039] After heat treatment at 1500℃×3H, the softening temperature under load is 1570℃.
[0040] After heat treatment at 1500℃×3H, the flexural strength retention rate after forced air cooling at 1100℃ for 3 times is 84%.
[0041] The comparison sample of ultra-low calcium aluminate cement corundum castable not only has a higher rate of line change ...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
melting point | aaaaa | aaaaa |
melting point | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com