Ramming material construction technical operating rules
I. Construction
Ramming material is a kind of bauxite and silicon carbide 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 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. Easy to bake and remove moisture.
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.
Rate of warming |
temperature |
Time (h) |
About 40℃/h |
Room temperature - 50℃ |
1 |
20℃/h |
50 ℃, 90 ℃ |
2 |
Keep warm |
90 ℃ |
1 |
30℃/h |
90 ℃ -- 120 ℃ |
1 |
35℃/h |
120 ℃ -- 190 ℃ |
2 |
30℃/h |
190 ℃ -- 220 ℃ |
1 |
Keep warm |
220 ℃ |
4 |
About 100℃/h |
220 ℃ -- 1000 ℃ |
6 |
Keep warm |
1000 ℃ |
2 |
The specific operation temperature rise is as follows:
Note: 1. Baking time from 0 to about 20h 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.