Release time：2023-11-08 15:23:58 Hits： Current position: Home > News
This article mainly introduces:
Vietnam hydraulic cylinder,hydraulic jack cylinder manufacturer,hydraulic jack cylinder
(Vietnam hydraulic jack cylinder,produced by Hebei Hengyu company）
hydraulic jack cylinder are widely used in Vietnam，because of excellent fatigue and impact resistance，smooth movement，high work efficiency.So our company has designed hydraulic jack cylinder for customers from Vietnam.
The hydraulic jack cylinder should not be mixed with foreign objects during assembly, which will cause scars. Before the total assembly of the hydraulic jack cylinder, all parts must be fully removed and cleaned. When the parts are installed with burrs or dirt, foreign objects are easily embedded into the surface of the hydraulic jack cylinder wall due to the stiffness and the weight of the parts, causing scars.
The definition of the minimum stable speed refers to the minimum movement speed of the hydraulic jack cylinder without crawling phenomenon when the full load is moving, it has no uniform indicator, and the hydraulic jack cylinder that undertakes different work has different requirements for the minimum stable speed.
If the hydraulic jack cylinder is sliding or crawling (stop and go), check whether there is any astringency inside the hydraulic jack cylinder. The internal parts of the hydraulic jack cylinder are improperly assembled, the parts are deformed, worn or the shape and position tolerance is excessive, and the action resistance is too large, so that the piston speed of the hydraulic jack cylinder changes with the different stroke position, and there is slip or crawl. Most of the reasons are due to poor assembly quality of parts, surface scars or sintered iron filings, so that the resistance increases, the speed decreases. For example, the piston is different from the piston rod or the piston rod is bent, the hydraulic jack cylinder or the piston rod is offset from the mounting position of the guide rail, and the sealing ring is too tight or too loose. The solution is to repair or adjust, replace damaged parts and remove iron filings. At the same time, check whether the lubrication is good or whether the hydraulic jack cylinder bore processing is out of whack. Because the piston and hydraulic jack cylinder, guide rail and piston rod are relative If the hydraulic jack cylinder is crawling seriously, check whether air has entered the hydraulic system. Air compression or expansion can cause the piston to slip or crawl. The exclusion measures are to check the hydraulic pump, set up a special exhaust device, and quickly operate the exhaust several times in the full stroke. Check the seals at the same time, because the quality of the seals is directly related to slippage or crawling. When the O-ring is used under low pressure, compared with the U-ring, it is easy to slip or crawl because of the higher surface pressure and the larger difference between static and static friction resistance. The surface pressure of the U-shaped sealing ring increases with the increase of pressure, although the sealing effect is correspondingly improved, but the difference between static and static friction resistance is also larger, the internal pressure increases, affecting the rubber elasticity, due to the increase in the contact resistance of the lip, the sealing ring will tip over and the lip elongation, and it is also easy to cause slip or crawling hydraulic jack cylinder weight composition and calculation. The weight of the hydraulic jack cylinder is composed of the hydraulic jack cylinder diameter, the outer diameter and weight of the hydraulic jack cylinder, the rod diameter, and the weight of the accessories, so in calculation, it is to add all these together to get the specific value. However, if there are special circumstances, it may be calculated separately. This work can be carried out by yourself, but it can also be carried out by professionals, so that mistakes can be avoided.
After chrome plating of the piston rod of the hydraulic jack cylinder, the surface flatness is not fully treated: After chrome plating of the piston rod surface, the method of post-plating polishing should be changed to post-plating polishing. Although it is necessary to increase the thickness of the coating before grinding (generally increased by about 0.02 in the diameter direction), it can remove chrome plating defects well, and test the binding force of the coating. In addition, due to the micro-roughness of the grinding surface, the trough can store lubricating oil, which can improve the wear resistance and extend the service life.
What's a minus 40 cylinder made of?
Construction with 1Cr18Ni9Ti, in low temperature conditions impact and tensile strength are very good, can withstand -100 degrees of low temperature, corrosion resistance, material price is not very high, more economic.
What is hydraulic cylinder guide?
The cylinder itself can not move, the piston moves, the guide should be used to guide the mechanism connected with the piston extension end. For example, in the commonly used hydraulic press, the guide column above is used to guide the pressure plate connected with the piston.
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