Special refractory brick series - high pressure soft phosphate composite brick
Size：(According to the design of the lining of the rotary kiln)
Phosphate refractory bricks are made of special grade high alumina clay, with the addition of blue quartz, using phosphoric as a binder, and sintered at 550-600℃. Phosphate abrasion-resistant bricks are also called phosphate high alumina bricks, so they are used in a series of furnace linings such as cement rotary kilns, pelletizing kilns, zinc oxide rot kilns, environmental protection vertical kilns, lime kilns, incinerators, etc.
High-pressure soft phosphate bricks are also called phosphaterasion-resistant bricks. They have a high AL2O3 content, high refractoriness, low apparent porosity, good low-temperature compressive strength they have high resistance to thermal shock and resistance to structural spalling, good thermal shock stability, low high-temperature creep value, high hardness, good chemical corrosion resistance and good abrasion resistance.
High-pressure soft phosphate composite bricks are composite layers with insulation and heat insulation materials added at the end of the contact, which greatly reduces the temperature of the cylinder and reduces the high-temperature baking of the cylinder, saving costs and improving thermal efficiency.
项目 | 指标 | |||
GPA-75 | PA-70 | P-65 | P-60 | |
Al2O3/% | ≥75 | ≥70 | ≥65 | ≥60 |
Refractoriness/℃ | 1780 | 1780 | 1750 | 1750 |
Volume density g/cm³ | 2.9 | 2.8 | 2.7 | 2.6 |
Heating softening temperature0.2MPa/℃ | ≥1500 | ≥1450 | ≥1350 | ≥1300 |
Thermal shock stability 1100℃水冷（次） | 10 | 8 | 5 | 5 |
Pressure resistance/MPa | ≥90 | ≥80 | ≥70 | ≥60 |
Abrasion resistance（cm³） | 8 | 5 | 5 | 3 |
*Can be negotiated and customized according to the customer's indicators. | ||||
Previous : Special refractory brick series - corundum mullite brick
Next : Special refractory brick series - sintered zirconia alumina brick
Copy product links
Long by picture save/share
INQUIRY
Add Successfully
INQUIRY
Add Successfully
HOME | About | Product | News | Case | Contact
Phone：+86 13603821221 E-mail：zzhanc@126.com
Address：河南省新密市牛店镇古角村
Copyright 2025 Huaang. All Rights Reserved
Copyright 2025 Huaang. All Rights Reserved
