Tensile test Ht-2402-100kn universal testing machine is used to measure the tensile properties of ADI in strict accordance with GB / T 228-2002. Each group of tensile tests shall not be less than 3 times, and the average value shall be taken as the final test result. The calculation...
Temperature test of molten iron Ya1-w330 portable melting thermometer is used to measure the molten iron temperature in the process of electric furnace melting, and strictly control the temperature of molten iron out of furnace, spheroidizing temperature and pouring temperature. During the test, zero the thermometer first, and then...
After the ductile iron test bar is taken out of the box, the angle grinder is used to cut the test bar from the inner runner, and then the burr and sand sticking on the test bar are removed. The parts of each test bar less than 40mm from...
Ordinary clay sand molding is adopted, and the molding process includes mold processing, sand mixing, sand pounding, box turning, vent hole, mold lifting and finishing. The test bar molds with a height of 300 mm and diameters of Φ 10 mm, Φ 20 mm, Φ 30 mm, Φ 40...
The spheroidizing treatment was carried out by the method of in package charging. The spheroidizing temperature is 1450 ~ 1500 ℃, the particle size of spheroidizing agent is 5 ~ 10 mm, and the dosage is 1.3%. The inoculation process is in package inoculation + with current inoculation. The...
When the chemical composition of molten iron is constant, the smaller the casting modulus, the higher the amount of P in nodular iron matrix. According to the equilibrium phase diagram of Fe-C, there is about 11.2% high carbon phase Fe3C in P, which will have a significant effect on...
When the high temperature molten iron is poured into the furan resin self hardening sand mold, the furan resin, curing agent and other raw and auxiliary materials in the molding sand will decompose at high temperature to produce a large amount of gas, and at the same time, the...
The design of sand core head of intake cylinder is the most important content in sand core design, and also plays an important role in determining the quality of castings. The vertical and horizontal comprehensive design schemes are adopted. The main functions and design principles of the core head...
Visual observation of the test block section with a thickness of 400mm shows that there are dense distribution of suspected fragment shaped abnormal graphite with different severity in the center of test block section of e3-6, e3-8 and e3-9, and the fragment graphite aggregates to form gray spots with...
In order to study the effect of composition on the morphology of thick and large section graphite, bulk sampling was carried out on the stepped test block. The floating graphite on the top of the section and the abnormal graphite distortion distribution in the center of the block were...