Shandong Institute of Mining and Yanzhou Mining (Group) Company mechanical system repair plant, jointly developed multi-purpose mine Yangcun hydraulic valve test bench, capable of various types of coal mining equipment in the performance testing of hydraulic valves. It uses electromagnetic proportional relief valve for pressure adjustment, pressure range, accurate data acquisition, and achieved very good results.
Austrian company to provide plumbing heating systems for regulating the temperature of water flow valves and fittings (THERMOSTATIC VALVES AND FITINGS). The product can adjust room temperature, saving expenses. The products in the leading positions in the hope that China and installation of heating materials for partners and buyers, and keep in touch with them. For details, please contact:
Abstract: The first color penetration testing conducted after the two testing magnetic particle inspection process technology method for surface inspection of diesel engine valve, a separate use of complementary coloring inadequate testing or magnetic particle testing to ensure test quality and reliability.
Key words: diesel engine; valve; surface inspection
Diesel engine valve in the service process, the downtime caused by failure, resulting in economic losses. Diesel engine valve failure are the following three reasons: First, as the valve can not be reset while the Pistons hit touched off; Second, poor body raw materials (such as surface cracks, inclusions, etc.) caused during the manufacturing process defects (such as forging cracks, stress concentration due to machining marks and microcracks formed in service); third, the body flow by heat stress and heat stress corrosion cracks generated.
Abstract: This paper introduces a theory developed based on the jet pipe in the water industry application of new antifreeze device.
Key words: pipe; jet; frost valve
In northern China, mostly in winter minimum temperature -30 ℃ ~ -20 ℃ between the individual areas of up to -40 ℃, frozen earth depth is generally between 0.5m ~ 1.5m, this winter for the rural and urban water use is very difficult. At present, the water industry, the existing antifreeze device or complex, higher prices; or drip serious, the use is not ideal. We successfully developed based on the principle of jet pipes FDJ-100-I-type jet freeze valve device to overcome the shortcomings of the antifreeze, the antifreeze has a good effect.