Shandong Shengya Machinery Co., Ltd. specializing in the production of various types of brick, brick machine, brick machine, hollow brick, pavement brick and other equipment of the old brick factory.
     By type of pollutants, oil pollution can be divided into the following categories: solid particle pollution, water pollution, air pollution, and mixed quality pollution.
   A solid particle contamination: solid particles containing dust, welding slag, embroideries and metal powder. They mixed in with the activities of the hydraulic oil and the oil has spread throughout the entire hydraulic system, when after body, these contaminants will fill vacancies sliding spool, spool constitute a continuous slow movement or motion. Second, hydraulic oil-rich solid particles similar to the use of abrasive grinding metal machining surface when it passes through the pump, cylinder and valve, will increase the wear of each conflict, issued to new pollution particles will greatly decrease the use of tho elements number, a serious threat to normal operation of the hydraulic system.
   2. Water pollution: after a certain amount of water into the hydraulic oil, the oil will become white, so that the oil activity deteriorates, when the moisture content across the zero one percent, the oil does not have a normal activity of the. After the water and oil in the sulfur or chlorine contact, will attack sulfuric acid or hydrochloric acid, the acid value when the oil arrived 0.3mgKOH / g, can corrode metal parts and attack embroideries of the solid particle contamination, so that the whole Hydraulic system can not work properly, the water itself may slow other metal chloride, then reduce life expectancy fell by use of hydraulic components.
   3. Air pollution: After hydraulic oil into the air, because the volume and inversely proportional to the gas pressure, so along with the load changes, the implementation of the moving element will be affected; import filter after occlusion, the suction resistance of hydraulic oil greatly add can cause cavitation, vibration and noise; air can cause components can be chlorinated and hydraulic oil lost smooth function; in particular under ambient conditions of temperature and pressure, the air is simply constructed hydraulic oil oxidation transformation, resistance increases activity, the implementation of elements constituting the job is not normal, other transformation of hydraulic oil can also generate harmful substances that will corrode metal parts.
   4. Grease: The hydraulic system in the normal course of the campaign, try not to exchange high-class or trademark, when the hydraulic oil or a mixture of two different types of trademarks after because of its chemical composition is not the same, can alter the chemical composition of hydraulic oil, so changes in the nature of attack.
  Shandong Shengya Machinery Co., Ltd. has been committed cement products machinery development, production and sale of advanced equipment, superb technical expertise and two decades of experience, the company has always been at the forefront of research and development center block molding machine market development Follow the advanced technology at home and abroad, to develop products for different investment needs of users, mainly block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, telephone poles machine equipment. At present the country with 19 offices and six overseas plants (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported more than 100 countries and regions.