Six common problems and solutions for quartzite plate

Number of visits:information sources:Shandong Kang Jieli New Materials Co., LtdRelease time:2018/7/5

Artificial quartzite is a kind of artificial stone which is die-casting with quartz sand as the main filling material. The hardness of the plate is up to 7 levels of moth hardness, high temperature resistance, 300 degrees, beautiful color and so on. The disadvantage is that it is not easy to process, fracture can not be repaired, basically can only make flat table. With the continuous maturation of quartz stone market in China, plus the subsidy of numerical control equipment. At present, we have basically solved the problem of modeling difficulties and seamless splicing. The following are the reasons for the quality problems of quartz stone plates and the solutions.

First, stomatal phenomenon: the number of holes on the surface of the sheet varies in size and size. Cause analysis: when the plate is pressed, the vacuum inside the press can't reach the requirement of -0.098Mpa, and the air in the material is not drained out. Vacuum can not meet the requirements of the following reasons: 1. vacuum pump is not strong enough to evacuated to -0.098Mpa. The 2. compressor is leaking. Each pipe connection, interface and seal leakage of the compressor. 3. the vacuum pressure is not reached until -0.098Mpa, and the main pressure plate is not compacted. Solution: 1. check whether the press is leaking: close the vent valve, evacuated to -0.098Mpa, close the valve between the press and the vacuum pump, and observe whether the pointer of the vacuum meter goes back. If the pointer is back, it explains the leakage of the compressor and tells the machine to repair it. If the pointer does not move, it means that the compressor is not leaking. Check other possible reasons. 2. the Mak's vacuum gauge can check the vacuum degree of the press to reach -0.098Mpa. If it does not reach -0.098Mpa, the leakage of the press or the vacuum pump is not enough to check the leakage of the press. If the compressor does not leak, notify the machine repair and check the vacuum pump. 3. the plate that is not compacted to return pressure must be vacuumed to -0.098Mpa before pressing the plate, otherwise it will easily produce pores.
Two, motley phenomenon: 1. material and iron friction produced by black. The color of 2. mirror glassy decolorization. Cause analysis: 1. impeller iron leakage, or leaking iron leakage, resulting in ferrous material and ferrous friction. 2. the vibration force of the press is uneven, resulting in the mirror glass decolorization of the part of the sheet. 3. sundries in the environment cause variegated colors. Solutions: 1. when producing sheets (especially fine particle white boards), check the leaks and impeller of blender carefully. If there is leaking iron, solve it immediately. 2. producing glass mirror (except black) with white glass. 3. clean up the sanitation around the production site.
Three, the phenomenon of powder group: there are different sizes of pellets on the top of the board. Cause analysis: 1. the agitator can't stir to the side, and the material on the edge of the mixer is not stirred. 2. the material on the wall of the mixer falls into the material. 3. the agitation is uneven. Solutions: 1. the impeller should be made and maintained by the designated machine, and the machine will be changed immediately when the impeller is not stirring. 2. the material on the wall of the mixer is shoveled into the mixer after adding the resin, or after the material is put off, the shovel is removed from the blender. The 3. mixer is operated in strict accordance with the technical requirements.
Four, uneven particles: large uneven distribution of particles on the board surface, local intensive, local evacuation. Cause analysis: 1. stirring time is not enough to cause uneven stirring. 2. particles and powders have not been stirred evenly, then add the color paste, and the powder and the color paste form a group. If the stirring time is not enough, the particle distribution will be uneven. Solutions: 1. strictly operate according to process requirements. The 2. big material must be rubbed and then the cloth. 3. particles and powder are mixed in advance in the raw material workshop.
Five, impurity phenomenon: the raw materials needed for the model are not found on the surface. Cause analysis: 1. raw materials are brought in: raw materials are brought in, weighing process is carried, loading bags are not cleaned. 2. in the process of production: bring into the process of color pulp weighing, bring into the mixing process, bring into the impurity, the blender is not clean and bring into the impurity, the environment is brought into the air (the floating impurity in the air), and the cloth is brought into the cloth (mainly in the glove). Solutions: 1. impurities in raw materials must be selected, hygienic cleaning of weighing sites should be cleaned, and bags must be cleaned up (if necessary, bagging). 2. clean up the hygiene on the mixing platform and pay attention to whether the gloves are clean. 3. clean the mixer before and after the production and the sanitation around it.
Six, honeycomb phenomenon: after the thickness of the bottom plate is fixed, the rough part of the part is not fixed until the blank plate is left. Cause analysis: 1. rough slab thickness is not enough. 2. the deformation of sheet metal leads to partial thickness. 3. when the thickness is fixed, the grinding capacity is insufficient. Solution: 1. adding material to increase the thickness of blank slab. 2. control sheet deformation problem. 3. the bottom plate must be kept at 18-18.5mm and the big board at 18.5-19mm.

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