Thermal-insulation coating material containing glass powder lubricant, preparation method and application
A coating material and glass powder technology, which is applied in the fields of thermal insulation coating material containing glass powder lubricant, preparation and application, can solve problems such as boring, affecting product quality and yield, and delamination, and achieves good extrusion. effect of effect
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Embodiment 1
[0030] Martensitic heat-resistant steel P91 is extruded, the size of the tube blank is Φ700mm, and the size of the extruded tube is Φ350×76mm. The heating process is 1180°C for 3 hours. Select the sheathing material involved in this patent, which uses aluminum silicate fiber thermal insulation asbestos blanket as the matrix and inserts GW11 glass powder, and rolls the tube blank on the sheathing material to completely cover the surface of the tube blank, and then Then return to the furnace to heat, hold at 1180°C for 1 hour, and extrude directly after being released from the furnace to obtain extruded tubes with good surface quality. After temperature measurement and timing inspection, it is found that the method of wrapping is better than the method of not wrapping, from the time of coming out of the furnace to the beginning of extrusion , the time was shortened from the original 15 minutes and 34 seconds to 3 minutes and 20 seconds, the temperature drop was reduced from the o...
Embodiment 2
[0032] Austenitic stainless steel 304 is extruded, the size of the tube blank is Φ900mm, and the size of the extruded tube is Φ630×105mm. The heating process is 1200°C for 8 hours. The aluminum silicate fiber insulation asbestos blanket is used as the matrix, and the sheathing material embedded with GW9 glass powder is rolled on the sheathing material by the tube billet to completely cover the sheathing material on the surface of the tube billet, and then returned to the furnace for heating at 1200°C for heat preservation. 1 hour, directly extruded after coming out of the furnace, and obtained extruded tubes with good surface quality. After measuring temperature and timing, it was found that using the wrapping method was better than not using the wrapping method. 21 seconds was shortened to 3 minutes and 50 seconds, the temperature drop was reduced from 253°C to 137°C, the resistance to extrusion deformation was reduced by 27%, and the surface quality of the extruded tube was s...
Embodiment 3
[0034] The nickel-based superalloy C-HRA-1 is extruded, the billet size is Φ700mm, the extruded tube size is Φ350×76mm, the heating process is 1170°C for 5 hours, and the wrapping is carried out directly after being released from the furnace. The wrapping material is selected from this patent. The covering material involved in the above is based on aluminum silicate fiber insulation asbestos blanket, embedded with GW9 glass powder, through the rolling of the tube billet on the covering material, the covering material is completely covered on the surface of the tube blank, and then returned to the furnace for heating , heat preservation at 1170°C for 1 hour, and extrude directly after coming out of the furnace to obtain extruded tubes with good surface quality. After temperature measurement and timing inspection, it is found that the method of wrapping is compared with the method of not wrapping. The original 14 minutes and 21 seconds was shortened to 3 minutes and 05 seconds, t...
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