Control of microstructure and phase structure of martensitic stainless steel
When studying 00cr13ni5co9mo5 maraging stainless steel, Luo Jing et al. Found that only a small amount of martensite was transformed […]
When studying 00cr13ni5co9mo5 maraging stainless steel, Luo Jing et al. Found that only a small amount of martensite was transformed […]
2Crl3 stainless steel is a hypoeutectoid steel. The temperature is raised to the austenite transformation temperature and kept for a
Li Yupeng and others found that under the same quenching and tempering process, the tensile strength of 2Cr13 Steel after
To design the process of nodular cast iron, in addition to selecting the correct casting method and process scheme, the
The selection of parting surface is directly related to the dimensional accuracy, production cost and efficiency of nodular cast iron.
According to the actual production situation, the automobile hub support casting is produced by using the Japanese Xindong automatic pouring
The traditional heat treatment method of 2Crl3 generally recommends 1000 ° c-1050 ° C oil cooling or water cooling +
Spheroidizing treatment and inoculation treatment are essential pre furnace treatment steps for raw molten iron of nodular cast iron. The
In order to obtain as cast ferrite pearlite nodular cast iron with high strength and good plastic toughness, the production
The automobile hub support is an important support of the rear suspension system of the car, one for the left
The series of experiments were carried out on the filling process of lost foam casting of gray cast iron by
In order to analyze the effect of Cu and Mn content on the mechanical properties of ductile iron casting, tensile
The filling form of regular flat plate model is divided in the front. In actual production, the structure of lost
The lamellar spacing of pearlite will also affect the tensile strength of ductile iron casting. Generally, the smaller the lamellar
When pouring the interface heat transfer coefficient, the heat exchange process between the casting and the mold begins from the
The model shown in Fig. 1 is made of two models with the same size and different density bonded by
The metallographic samples of nodular cast iron No. 1 ~ 3 nodular cast iron corroded by 4% nitric acid alcohol
The phenomenon that the mold wall displaces after the molten metal is poured into the lost foam casting mold is
(1) Sample preparation. Using sheet tensile samples, first cut a sheet with a thickness of 2 mm from the middle
Fig. 1 to Fig. 3 are isochronous graphs of liquid metal filling pattern of lost foam casting under different pouring
(1) Sample preparation. Cut the samples of three components into 10 mm by wire cutting machine × 10 mm ×
The outer circle diameter is 150mm, the inner circle diameter is 100mm, and the ring thickness is 20mm. The model
Bending strength refers to the ability of materials to bend and crack continuously. HT150 has certain mechanical strength and good
The external geometric dimension is 200mmx100mm, the internal geometric dimension is 150mmx50mm, and the thickness of the model is 20mm.
HT150 belongs to medium strength gray iron castings. Gray iron has good casting performance, simple process and small casting stress,
The test results are shown in the table: Pouring position Total mold filling time (s) Average filling speed (cm/s) Side
Lost foam casting is a special gravity casting. Because of the existence of foam solid shape in the cavity, it
Paint Total mold filling time (s) Average filling speed (cm/s) Low permeability coating 1.18 17.00 Medium permeability coating 1.14 17.54
The test results are shown in the table. Sprue height (mm) Total mold filling time (s) Average filling speed (cm/s)
The solidification process of castings includes phase change, heat and mass transfer, and the heat transfer phenomenon is in the