1.How to control the pouring temperature? Since lowering the pouring temperature has so many advantages, how can we ensure smooth […]
(1) There should not be too much recycled sand in the core sand, because there are too many fine sand
Company profile: Yuchai Machinery Co., Ltd. is the largest professional diesel engine manufacturer in China. The foundry is its cost
More than 80% of the products in the foundry industry are made by sand casting, so we usually refer to
In order to ensure the quality of castings, the core used in sand casting is generally dry core. The clay
Bucket teeth are the key vulnerable parts of mining excavators. Their working objects are generally ore, rock or soil. The
China has a vast territory, vast territory and abundant resources, rich and complete types of mineral resources, and open-pit mining
Porosity is one of the most common casting defects in castings. According to the different formation mechanism, it is mainly
Through production test and research, the following problems exist in shell casting process: (1) mold shell deformation: mold shell deformation
(1) carbon equivalent shall be increased as much as possible without causing graphite floating. After the test, the carbon equivalent
Carry out multi batch pouring and anatomical analysis on the shell cast crankshaft, and make corresponding adjustment and improvement: For
The necessary condition for spheroidization is that magnesium as the main element in spheroidizing agent of nodular cast iron is
Reducing pouring “temperature” to reduce sand hole and air hole defects of large steel castings Reducing the pouring “temperature” is
The rear axle of high-speed excavator is the installation device of differential and half shaft, and bears the counter torque
There is a layer of sand particles on the surface of castings that are difficult to remove, which is called
Through analysis, for the nodular cast iron crankshaft shell casting with higher and higher requirements, the future research work will
Company profile: Weichai Power Co., Ltd. is a key backbone enterprise of national internal combustion engine R & D, manufacturing
Effective control of other process parameters can avoid cracks in valve castings. These processes mainly refer to the process of
Shell mold casting, a casting method for producing castings with thin shell mold. A kind of molding sand (phenolic resin
Technical parameters of rusty steel valve castings: Name: gate valve (composed of valve body, valve break and rocker) Pressure: 1500
(1) Composition control and selection of as Cast Ferritic Nodular Iron: Micro hypereutectic composition, in which the carbon is slightly
It is recommended that the optimum spheroidizing temperature range is 1420-1480 ℃, the spheroidizing temperature of nodular cast iron is
Through research and production practice, the following key problems must be solved in order to produce high-quality and mass qualified
Since the development and popularization of the process of producing crankshaft with iron film coated sand in the 1970s, due
① Increase the diameter of ladle nozzle and the size of gating system; ② Increase the number of ladle nozzles;
Although the application of shell casting in China is more than ten years later than that in foreign countries, it
The shell mold casting process of S1100 single cylinder diesel engine crankshaft was studied. S1100 single cylinder diesel engine crankshaft
Company profile: The Foundry Branch of Shanghai Diesel Engine Co., Ltd., located at No. 2636, Jungong Road, Shanghai, is a
Therefore, we analyze and sort out the causes of sand sticking in cast wear-resistant low alloy steel and the preventive
In 1940, Johannes Croning, a German engineer, invented the thermal method for manufacturing shell mold, which is called “C” method
