50results about How to "Not easy to cool" patented technology

Disclosed is a manufacturing method for a wire harness having a shape-retaining member and protector comprising a thermoplastic material, said manufacturing method enabling the easy formation of the axial shape of the shape-retaining member and protector into a predetermined shape during a manufacture process. The manufacturing method has: a first step, in which the periphery of an electrical wire is coated by a body (13) to be molded comprising a thermoplastic material, and in which the body (13) to be molded is formed into a predetermined cross-sectional shape and dimensions by applying pressure thereto while heating the body (13) to be molded at a temperature at which plastic deformation is possible because of the thermoplasticity; and a second step, after the first step, in which the body (13) to be molded is formed into a predetermined axial shape while at the temperature at which plastic deformation is possible because of the thermoplasticity, and is cooled after being formed into the predetermined axial shape. In the second step, the shape-retaining member (12) obtained through the first step is inlaid in a molding section (721) formed in a lower mold (72) of a second molding body (7), forming the axial shape of the shape-retaining member (12), which is then cooled.

The invention discloses a casting method of a steering knuckle of nodular cast iron. The casting method comprises a mold manufacturing step, a sand mold manufacturing step and a pouring molding step, wherein the steering knuckle is vertically arranged, a thick part of a steering knuckle casting is arranged at the upper part, a thin-walled part of the steering knuckle casting is arranged at the lower part; a pouring system of the steering knuckle casting is divided into a pouring cup, a cross pouring gate and a straight pouring gate, the cross pouring gate is connected to the lower part of the pouring cup, the straight pouring gate is connected to the lower part of the cross pouring gate, and a scum riser is arranged at the bottom end of the straight pouring gate; the side wall of the straight pouring gate is connected with a first inner pouring gate, a second inner pouring gate and a third inner pouring gate from top to bottom; the steering knuckle casting is further provided with a hot riser, a cold riser and exhausting pieces; the sectional area ratio of each component of the casting is that F(straight pouring gate):F(cross pouring gate):F(inner pouring gates) is equal to 1:(1.2-1.4):(1.35-1.5); the casting is obtained by controlling the pouring temperature at 1370-1410 DEG C and carrying out pouring for 5-10 seconds. The casting method has the advantages that pouring speed is high, the defects such as shrinkage porosity, shrinkage cavity and the like cannot easily occur, and the casting is high in production efficiency, low in rejection rate and excellent in mechanical property.

The present invention relates to a centrifugal casting apparatus. A lower mold mounted on the main frame and rotated by means of a main shaft; a lower plate which is mounted on the main frame and which is mounted on the main frame and which is rotatably mounted by means of a motor. An upper plate which is rotatably mounted on the lower surface of the upper plate and is moved by a lowering operation of the upper plate, and an upper plate which is rotatably mounted on the lower surface of the lower plate and a stripper which is located in the lower part of the lower mold and discharges the cast product from the lower mold by the up and down operation of the upper plate. The centrifugal casting device of the upper and lower molds can be close to each other and rotate together with the rotation, the upper and lower mold high temperature heating, the melt is not easy to cool, and if necessary, can quickly cool.