High performance patching material
General introduction
The product is composed of corundum, super bauxite and mullite and other raw materials, the main uses of the product are: intermediate frequency furnace lining repair, ladle/iron ladle/non-ferrous metal pouring ladle, steel and non-ferrous metal all contact parts, easy to use, users can be directly used on site without adding any ingredients (including water); At the same time, it has the characteristics of no mold, no maintenance and directly entering the baking stage after construction, and the baking time is shorter than that of castable of the same thickness construction layer. After baking, it has the characteristics of high strength, strong thermal impact resistance, excellent thermal insulation performance and strong corrosion and penetration resistance.
Physicochemical index |
|
|
|
|
|
brand |
Al2O3 % |
Cr2O3 % |
Body density g/cm3 |
colour |
Construction method |
KS-1 |
75 |
3 |
2.6 |
green |
Apply or pound |
KS-2 |
76 |
|
2.6 |
white |
Apply or pound |
Standard packing and storage methods
Packed in 25kg plastic drum; Store in a cool place at room temperature, avoid opening the bag in the exposed air, or store in a place of exposure and high temperature. The recommended storage period is not more than 6 months.
Construction technical parameter
Please refer to the company's "High Performance repair material construction technical operating rules"
High performance repair material construction technical operating rules
I. Construction
High performance repair material is a kind of corundum, super bauxite and mullite composed of plastic, the use of ramming compaction molding method for molding construction, the construction of the first manual plastic according to the required thickness laid in the required parts, and then with a hammer or a hand hammer ramming strong, the construction site is narrow, can be rammed with long wood, generally not too heavy, The construction surface can not be rammed to the surface like refractory concrete to produce grout, otherwise it is not conducive to the density and moisture volatilization of the internal structure of the plastic, so the construction surface is not easy to wipe and smooth. When ramming thicker, you can needle a little porosity, hole depth can be 1/2 of the thickness of the plastic, and the interval between the holes is 100mm, which is convenient for baking and removing water.
Second, baking
The oven is an important link, but the plastic water content is more, the baking temperature should be strictly controlled, especially in the low temperature state, the temperature must be slow, such as heating too fast, a large amount of water from the plastic too fast discharge, can cause plastic expansion, cracks, peeling and other adverse phenomena, affecting the use of effect.
item |
Warming time |
Temperature rise range |
Holding time |
Low bake |
0—6h |
Room temperature - 200℃ |
4h |
Medium bake |
10h—16h |
200 ℃ -- 600 ℃ |
3h |
Fire bake |
20h—24h |
600℃ - About 1000℃ |
3h |
The specific operation temperature rise is as follows:
Note: 1. Baking time from 0 to about 27h end;
2. Temperature rise is uniform temperature rise, in the real situation, as far as possible to achieve more uniform temperature rise; ,
3. The flame length is estimated according to experience, and the operation is handled according to the actual situation on site.
4. When the fire is baking, the high temperature is about 1000℃, which can be slightly increased and should not be lower than 1000℃.
5. The specific baking scheme can be adjusted according to the site situation.