The working surface of the cast iron T-groove platform should not have sand holes, pores, cracks, slag inclusion and shrinkage and other casting problems, all kinds of casting appearance should be cleaned of molding sand, and the appearance is smooth, the paint is strong and dull, the cast iron T-groove platform is lower than the "1 level of cast iron T-groove platform working face, the sand hole with a diameter of less than 15mm is allowed to be infarcted with the same data, and its hardness should be less than four degrees. There should be no more than four infarctions on the working surface of the cast iron T-slot platform, and the interval between them should not be less than 80mm, and the working surface of the cast iron T-slot platform should not have rust, scratches, bumps and appearance problems.
It is said that the particle size has a great influence on the carburization time of the cast iron T-groove platform, and it is not good to mix fine powder and coarse particles, especially when the micro powder content is high. Effect of particle size of recarburizer on recarburizer on cast iron T-slot platform: Effect of chemical composition of molten iron on the carburizer effect of cast iron T-slot platform. The silicon in the molten iron has a great influence on the carburization effect.
The solidification process of gray cast iron and ductile iron includes: at the end of eutectic transformation, the eutectic grains are connected with each other, and the eutectic grains are connected with each other between eutectic grains and primary austenite dendrites, and the remaining residue with low melting point is at the grain part and solidifies. Although the volume fraction of this residual liquid in cast iron is very small, it is enriched with a variety of segregation elements and inclusions, and its solidification state can make the grain boundary problems of iron castings, such as eutectic, grain boundary carbides, grain boundary non-metallic inclusions, deformed graphite, intergranular shrinkage and so on, which have a great impact on the quality of castings. There are many factors that affect the properties of the residual liquid in the production process, such as the selection of the chemical composition of cast iron, the quality of various raw materials used in smelting, the control of the melting process, the post-treatment process of molten iron, etc.
Cast iron T-slot platform debugging and installation: we should put it on a main support point above the position is better, and then keep our cast iron T-slot platform debugged to a relatively horizontal position, if there is no adjustment of the level which platform can not be used, because it has no precision, can not make the usual use of cast iron T-slot platform, in the installation of parts should also try to do it lightly, to avoid some heavyweight collisions. The above is to provide you with the conditions for the inspection of the cast iron T-slot platform, if you want to know the small knowledge of other cast iron T-slot platform, please continue, we will explain to you from time to time, thank you for your attention and support.
The addition method of recarburizer: the stirring of molten iron on the cast iron T-groove platform can promote the increase of carbon, so compared with the medium frequency induction furnace with weak stirring force and the power frequency induction furnace with strong stirring force, it is relatively difficult to increase the carburization of the cast iron T-groove platform, so the furnace has the possibility that the carburization cannot keep up with the dissolution rate of the metal charge.
In addition, in the case of medium-frequency induction furnaces that generate strong induced currents near the furnace wall, if the molten iron is drilled between the graphite clusters attached to the furnace wall, the metal melted in the next furnace will be melted, resulting in erosion and damage to the furnace wall.
Cast iron T-slot platform start melting work: call up the new furnace melting process of the cast iron T-slot platform from the computer, enter the melting command, and the melting work will be carried out automatically. Cast iron T-groove platform melting process: room temperature 100 h, temperature 1100, heat preservation 4 hours, 100 h temperature (after the charge melts, < 200 h), 1560 heat preservation 3 hours.
At the end of use, a layer of anti-rust oil should be applied to the surface of the cast iron T-slot platform to ensure that the appearance of the cast iron T-slot platform is smooth and rust is avoided. If it is not necessary for a long time, the condition is that the cast iron T-groove platform is coated with a layer of butter and then covered with a layer of white paper. Cast iron T-slot platform is widely used in construction occupations, printing occupations, hydraulic equipment, construction occupations, railway locomotives, instrument production, electronic occupations, petrochemical industry, automobiles, ceramics occupations, railway locomotives and other fields.