The invention relates to a cylinder sleeve casting technology The cylinder sleeve casting technology comprises the following steps of mixing sand: using resin and sand as raw materials, and preparing casting molding sand from the raw materials proportionally; manufacturing a die: manufacturing a cylinder sleeve inner die casting die and a cylinder sleeve outer die casting die according to the size and the shape of a cylinder sleeve, placing the cylinder sleeve inner die casting die inside the cylinder sleeve outer die casting die, and forming a dual-layer die through assembly; smelting: preparing raw materials according to a certain proportion, placing the raw materials in an electric furnace to be heated to the smelting temperature, and adding a nucleating agent to smelt the raw materials; pouring: pouring molten iron, obtained in the smelting process, in a sand mold inside the double-layer die, obtained in the die manufacturing process; and cooling to normal temperature, opening a die box, taking out the formed cylinder sleeve, thoroughly cleaning the surface of the cylinder sleeve by a pneumatic shot blast machine, and polishing and enhancing the surface of the cylinder sleeve The cylinder sleeve casting technology has the advantages of being reasonable in process, saving the raw materials, reducing cost, and being simple and stable to operate, high in production efficiency, high in product qualified rate, and high in forming quality

Cylinder sleeve casting technology

The invention relates to a brake drum casting process. The process includes the following steps that sand is mixed, specifically, the resin sand is used as the raw material, and a sand box is made after casting sand is prepared according to a ratio; dies are manufactured, specifically, the brake drum inner mold casting die and the brake drum outer mold casting die are manufactured according to the size and shape of a brake drum; smelting is conducted, specifically, raw materials are prepared according to a certain ratio and placed in an electric furnace to be smelted; pouring is conducted, specifically, molten iron obtained in the third step is poured into a sand mold inside a double-layer die; cooling is conducted to the normal temperature; a casting box is opened, a molded brake drum is taken out, shot blasting and polishing are carried out on the brake drum after the surface of the brake drum is cleaned, annealing is carried out after polishing, and surface strengthening is conducted; and machining is conducted, specifically, the brake drum is placed on a numerical control lathe to be machined, so that a finished product is obtained. The brake drum casting process has the advantages of being reasonable in procedure, capable of saving the raw materials and reducing the cost, simple in operation, stable in work, high in production efficiency, high in product percent of pass and good in molding quality.

Brake drum casting process

The invention discloses a production technology for a cylinder sleeve and a cylinder sleeve cooling device According to the production technology, after the cylinder sleeve is formed after casting, cooling liquid is adopted in a casting die for cooling the cylinder sleeve to the temperature of 700-800 DEG C; and then a heat insulation cooling manner is adopted to cool the cylinder sleeve to the room temperature The cylinder sleeve cooling device comprises a centrifugal machine arranged at the rear end of the casting die, a random allocation rail connected with the centrifugal machine in a bearing manner, and containers communicated with all outlets of the random allocation rail Heat insulation powder is contained in the containers The random allocation rail is provided with an inlet communicated with the centrifugal machine and a plurality of outlets communicated with the inlet, wherein each outlet has the equal probability for obtaining the current cylinder sleeve Compared with the prior art, high quality is ensured, the temperature in the casting die only needs to be lowered to 700-800 DEG C, the time for producing the cylinder sleeve of the casting die is greatly shortened, and the efficiency of molding the cylinder sleeve of the casting die is improved

Production technology for cylinder sleeve and cylinder sleeve cooling device

The invention provides a metal sheet molding method and a molding system thereof. The method comprises the following steps: utilizing computer software to design a three-dimensional model of a metal sheet; obtaining mold shape data of the metal sheet; making a mold of the sheet metal, wherein the material of the mold is gypsum or sand; and casting a molten metal, and demolding after the molten metal is solidified and molded to obtain the metal sheet. The material of the making mold adopted by the metal sheet molding method is gypsum or sand, and the gypsum or sand is an environmentally-friendly reusable molding material, so the making cost of the mold is low, and the material of the mold can be reused; and the molding method which allows the whole process to be controlled by a computer has the advantages of small error, high automation degree and increased production efficiency, and is especially suitable for making molds having complex shapes.

Metal sheet molding method and molding system thereof

The invention discloses a casting method of an air-cooled engine cylinder. The casting method comprises the following steps: processing an inner die casting mould of an air-cooled engine cylinder sleeve; processing an outer die casting mould of the air-cooled engine cylinder sleeve; placing the inner die casting mould into the outer die casting mould, assembling and forming a double-layered mould; pouring metal liquid at 1300-1400 DEG C to the double-layered mould, rotating the double-layered mould along the horizontal axial direction to generate a centrifugal force, so that the metal liquid is fully filled in the double-layered mould; controlling time of adding water and cooling time; when set time of adding the water and the set cooling time are reached, adding the water to cool the double-layered mould; taking out a cooled inner die casting mould; obtaining the air-cooled engine cylinder sleeve. The casting method disclosed by the invention is simple in technique, high in utilization rate of molten iron, good in product quality, and high in yield.

Casting method of air-cooled engine cylinder

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Casting method of air-cooled engine cylinder