| Message: | 1.Shanghai Meihong Machinery Manufacturing Co., Ltd.located in Rm.503, 1st Building , Wisdom Bay, Rd 6 Yunchuan,Baoshan District,City area,Shanghai,China,with elegant environment and convenience, market information delivered smoothly.Meihong Machinery is Meihong Machinery which is a specialized inIndustry and agriculture,Machinery and industry equipment,Casting processing.
2.Meihong MachineryThe process flow of lost wax casting is: pressing plastic mold - open plastic mold - wax injection (mold) - dressing wax mold (welding wax mold) - wax tree (- weighing) - plastering pot - Gypsum vacuum - gypsum natural solidification - baking gypsum - melting gold, casting - fried gypsum - washing, pickling, cleaning (- weighing) - shearing blank (-rolling).The process of lost wax casting is: the original mold (usually silver plate) is surrounded by raw silica gel, vulcanized by heating and pressing, and pressed into a silica gel mold; after cutting the plastic mold in a certain order with a sharp blade, the silver plate is taken out. Obtaining a hollow rubber mold; injecting wax into the hollow plastic mold, and after the liquid wax is solidified, the mold is opened to take out the wax mold; after the wax mold is trimmed, the wax mold is planted in a certain arrangement, and the steel sleeve is placed in a steel sleeve. The high-temperature gypsum slurry is poured; the gypsum is vacuumed, naturally hardened, dried after a certain heating period, and the molten metal is cast (can be cast by the principle of positive pressure or negative pressure); after the metal is cooled, the plaster mold is placed in cold water to be fried. After washing, the castings are taken out, soaked in acid, cleaned, and the blanks are cut to be rolled; after the mold is applied and inlaid, the surface treatment is finished. The positive pressure and negative pressure casting mentioned above refers to the pressure state inside the casting mold during the casting process. Positive pressure casting i |
my account
