Steering pump noise elimination method
Steering pump is the power source for car steering. At present, the major domestic models such as Jiefang, Dongfeng, Great Wall pickup, and Jinbei coaches all use blade-type power steering pumps. The steering pump is equipped with a flow control valve and a safety valve, which is small in size, light in weight, and simple in system connection. The disadvantage is that the noise is large. 1: The main reason for the noise generated by the steering pump is that air is mixed in the system. Especially in the oil suction area of ​​the hydraulic pump, due to the low pressure, holes are easily generated. That is, the volume of the bubbles is compressed in the high pressure area, and the volume suddenly increases in the low pressure area. , an explosion that creates noise. Therefore, when the oil inlet pipe is installed, it must be sealed reliably to prevent looseness of the joint due to vibration; the sealing material must be very reliable, and the oil tank must have sufficient hydraulic oil. 2: The second reason for steering pump noise is failure of flow control valve, such as improper matching of valve hole and valve core, pulling of valve hole, contamination between safety valve and valve seat, sealing gasket is not round or notched, etc. Can cause noise. Especially when the control valve is working, the system pressure transients, which makes the control valve spring fatigue deformation failure, which will aggravate the noise. Therefore, check the use of the control valve, check whether the mating parts wear, pull hair, check the failure of the spring, if necessary, replace these parts. 3: The third cause of steering pump noise is caused by mechanical vibration. Therefore, when installing the steering pump, make sure that the coaxial error of the pump shaft and the main unit is less than 0.1mm, the inclination is less than 30, and the connecting pipeline should not be too thin or too long to minimize the elbow and avoid liquid eddy current. The steering pump speed should not be too high to avoid damage to the bearings. Tert-butyl Hydroperoxide Solution
Tert-butyl Hydroperoxideis a hydroperoxide, in fact one of the most widely used in a variety of oxidation processes, for example the Halcon process.It is normally supplied as a 69–70% aqueous solution. Compared to hydrogen peroxide and organic peracids, Tert-butyl Hydroperoxide is less reactive and more soluble in organic solvents. Overall, it is renowned for the convenient handling properties of its solutions. Its solutions in organic solvents are highly stable.
Industrially, tert-butyl hydroperoxide is used to prepare propylene oxide. In the Halcon process, molybdenum-based catalysts are used for the reaction.
On a much smaller scale, tert-butyl hydroperoxide is used to produce some fine chemicals by the Sharpless epoxidation.
TBHP Is a volatile, yellowish liquid ,it is alkyl hydroperoxide initator for polymerization of acrylic emulsion ,and wiedely used as raw material for organic peroxides synthesis.
Miscible with organic solvents such as alcohols,esters,olefins and NAOH solution.Slightly miscible with water
Tert-Butyl Hydroperoxide Solution,Tbhp Tert-Butyl Hydroperoxide Solution,Tert Butyl Hydroperoxide Solution,Hydroperoxide Solution Jiangxi Zhewei Material Technology Co.,Ltd , https://www.jxzwchem.com