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How to troubleshoot high-pressure hose oil leakage

How to troubleshoot high-pressure hose oil leakage

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2021-03-18
  • Views:0

(Summary description)How to troubleshoot high-pressure hose oil leakage
The hydraulic system is where the blood circulates in the mechanical system. The hydraulic tube can be called a mechanical blood vessel. At work, leakage of hydraulic lines is commonplace. At the same time, the pressure drop caused by the leakage of hydraulic oil has brought us many effects. How to overcome leakage is an inescapable task for every hydraulic pipe manufacturer and user.
The hydraulic system is where the blood circulates in the mechanical system. The hydraulic tube can be called a mechanical blood vessel. At work, leakage of hydraulic lines is commonplace. At the same time, the pressure drop caused by the leakage of hydraulic oil has brought us many effects. How to overcome leakage is an inescapable task for every hydraulic pipe manufacturer and user.
First of all. Let's talk about the causes of hydraulic pipe leakage:
1. The tube body bursts. The cause of the tube burst is generally that the hose manufacturer has not tested the assembly before leaving the factory; at least there is no root pressure test. It may be random testing. This is not prohibited in industry standards. However, as a user's request, any leakage cannot be tolerated. Therefore, the manufacturer must test the products one by one according to the standard before the products leave the factory. On the other hand, the user believes that the liquid pressure is too high due to mechanical failures during use, which exceeds the pressure that the tube design can withstand. There will also be bursts. For example, dump trucks are seriously overloaded.
2. The pipe joint is leaking. Pipe joints are often used in hydraulic systems, and the proportion of oil leakage accidents is also very high, reaching more than 30% to 40%. The reason for oil leakage in pipe joints is mostly because the processors did not process them according to the drawings and standards. Such as threaded hole processing size, processing accuracy is out of tolerance, etc., once the above situation occurs, it is difficult to cure the oil leakage, and it can only be filled and sealed with liquid sealant or PTFE tape. Other causes of problems with pipe joint components, such as bumps and scratches on the sealing part during galvanizing or transportation, can cause leakage.
On the other hand, due to cost reasons; market competition makes connector manufacturers unprofitable. According to the requirements of the national standard pipe joint female and joint body, No. 45 steel is used. The crimping sleeve is made of 20 gauge steel. But limited to buyers bargaining prices too low, and manufacturers are unwilling to abandon customers. As a result, the steel used in the joint is not standard; causing the hose to leak after a period of use.
3. Improper selection of tube body. Different pipes should be used for hydraulic systems due to different working environments. Now hydraulic hoses are mainly divided into rubber hoses and hydraulic resin hoses. The resin tube is a new product. After various demonstrations, the hose is resinized to fully demonstrate the advantages of the product. However, some of the resin tubes have a larger bending radius. The resilience is not good. In addition, high-pressure hoses are divided into oil resistance, temperature resistance, corrosion resistance, etc., which requires designers to select appropriate pipe materials.
4. Reasons for withholding. At present, the products produced by small domestic manufacturers of hose crimping machines have defects such as insufficient automation, low precision, low production efficiency, and poor stability. Especially the manual control of the crimping machine is more likely to cause leakage at the hose joint. But this is not easy to change within a certain period of time. This requires manufacturers to pay more attention to the training and requirements of withholding technicians.
5. Test reason. A hose leak does not necessarily mean that the hose has not been tested. Sometimes tested. However, due to the difference between the test equipment and the working environment of the hose, unexplained failures may also be caused. For example: the pressure on the pressure tester is slow and the pulse force is not enough. The working hydraulic system is very different. Then there is the lack of responsibility of the pressure testers and the uneasy standard test.
6. Reasons for installation. Incorrect hose assembly and equipment assembly are another major cause of leakage. Both the assembly method and the tightening force are strict.
Solution:
1. Choose suitable pipes according to the working environment.
2. Purchasing joints strictly according to standards.
3. Improve the assembly method, try to use mechanical assembly and automated assembly.
4. Improve equipment. Improve staff's work quality and sense of responsibility.
5. Test strictly according to the standard, and try to ensure a 100% detection rate.
6. Choose qualified oil. Replace the aging hose in time.
of cours

How to troubleshoot high-pressure hose oil leakage

(Summary description)How to troubleshoot high-pressure hose oil leakage
The hydraulic system is where the blood circulates in the mechanical system. The hydraulic tube can be called a mechanical blood vessel. At work, leakage of hydraulic lines is commonplace. At the same time, the pressure drop caused by the leakage of hydraulic oil has brought us many effects. How to overcome leakage is an inescapable task for every hydraulic pipe manufacturer and user.
The hydraulic system is where the blood circulates in the mechanical system. The hydraulic tube can be called a mechanical blood vessel. At work, leakage of hydraulic lines is commonplace. At the same time, the pressure drop caused by the leakage of hydraulic oil has brought us many effects. How to overcome leakage is an inescapable task for every hydraulic pipe manufacturer and user.
First of all. Let's talk about the causes of hydraulic pipe leakage:
1. The tube body bursts. The cause of the tube burst is generally that the hose manufacturer has not tested the assembly before leaving the factory; at least there is no root pressure test. It may be random testing. This is not prohibited in industry standards. However, as a user's request, any leakage cannot be tolerated. Therefore, the manufacturer must test the products one by one according to the standard before the products leave the factory. On the other hand, the user believes that the liquid pressure is too high due to mechanical failures during use, which exceeds the pressure that the tube design can withstand. There will also be bursts. For example, dump trucks are seriously overloaded.
2. The pipe joint is leaking. Pipe joints are often used in hydraulic systems, and the proportion of oil leakage accidents is also very high, reaching more than 30% to 40%. The reason for oil leakage in pipe joints is mostly because the processors did not process them according to the drawings and standards. Such as threaded hole processing size, processing accuracy is out of tolerance, etc., once the above situation occurs, it is difficult to cure the oil leakage, and it can only be filled and sealed with liquid sealant or PTFE tape. Other causes of problems with pipe joint components, such as bumps and scratches on the sealing part during galvanizing or transportation, can cause leakage.
On the other hand, due to cost reasons; market competition makes connector manufacturers unprofitable. According to the requirements of the national standard pipe joint female and joint body, No. 45 steel is used. The crimping sleeve is made of 20 gauge steel. But limited to buyers bargaining prices too low, and manufacturers are unwilling to abandon customers. As a result, the steel used in the joint is not standard; causing the hose to leak after a period of use.
3. Improper selection of tube body. Different pipes should be used for hydraulic systems due to different working environments. Now hydraulic hoses are mainly divided into rubber hoses and hydraulic resin hoses. The resin tube is a new product. After various demonstrations, the hose is resinized to fully demonstrate the advantages of the product. However, some of the resin tubes have a larger bending radius. The resilience is not good. In addition, high-pressure hoses are divided into oil resistance, temperature resistance, corrosion resistance, etc., which requires designers to select appropriate pipe materials.
4. Reasons for withholding. At present, the products produced by small domestic manufacturers of hose crimping machines have defects such as insufficient automation, low precision, low production efficiency, and poor stability. Especially the manual control of the crimping machine is more likely to cause leakage at the hose joint. But this is not easy to change within a certain period of time. This requires manufacturers to pay more attention to the training and requirements of withholding technicians.
5. Test reason. A hose leak does not necessarily mean that the hose has not been tested. Sometimes tested. However, due to the difference between the test equipment and the working environment of the hose, unexplained failures may also be caused. For example: the pressure on the pressure tester is slow and the pulse force is not enough. The working hydraulic system is very different. Then there is the lack of responsibility of the pressure testers and the uneasy standard test.
6. Reasons for installation. Incorrect hose assembly and equipment assembly are another major cause of leakage. Both the assembly method and the tightening force are strict.
Solution:
1. Choose suitable pipes according to the working environment.
2. Purchasing joints strictly according to standards.
3. Improve the assembly method, try to use mechanical assembly and automated assembly.
4. Improve equipment. Improve staff's work quality and sense of responsibility.
5. Test strictly according to the standard, and try to ensure a 100% detection rate.
6. Choose qualified oil. Replace the aging hose in time.
of cours

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2021-03-18
  • Views:0
Information

How to troubleshoot high-pressure hose oil leakage
The hydraulic system is where the blood circulates in the mechanical system. The hydraulic tube can be called a mechanical blood vessel. At work, leakage of hydraulic lines is commonplace. At the same time, the pressure drop caused by the leakage of hydraulic oil has brought us many effects. How to overcome leakage is an inescapable task for every hydraulic pipe manufacturer and user.
The hydraulic system is where the blood circulates in the mechanical system. The hydraulic tube can be called a mechanical blood vessel. At work, leakage of hydraulic lines is commonplace. At the same time, the pressure drop caused by the leakage of hydraulic oil has brought us many effects. How to overcome leakage is an inescapable task for every hydraulic pipe manufacturer and user.
First of all. Let's talk about the causes of hydraulic pipe leakage:
1. The tube body bursts. The cause of the tube burst is generally that the hose manufacturer has not tested the assembly before leaving the factory; at least there is no root pressure test. It may be random testing. This is not prohibited in industry standards. However, as a user's request, any leakage cannot be tolerated. Therefore, the manufacturer must test the products one by one according to the standard before the products leave the factory. On the other hand, the user believes that the liquid pressure is too high due to mechanical failures during use, which exceeds the pressure that the tube design can withstand. There will also be bursts. For example, dump trucks are seriously overloaded.
2. The pipe joint is leaking. Pipe joints are often used in hydraulic systems, and the proportion of oil leakage accidents is also very high, reaching more than 30% to 40%. The reason for oil leakage in pipe joints is mostly because the processors did not process them according to the drawings and standards. Such as threaded hole processing size, processing accuracy is out of tolerance, etc., once the above situation occurs, it is difficult to cure the oil leakage, and it can only be filled and sealed with liquid sealant or PTFE tape. Other causes of problems with pipe joint components, such as bumps and scratches on the sealing part during galvanizing or transportation, can cause leakage.
On the other hand, due to cost reasons; market competition makes connector manufacturers unprofitable. According to the requirements of the national standard pipe joint female and joint body, No. 45 steel is used. The crimping sleeve is made of 20 gauge steel. But limited to buyers bargaining prices too low, and manufacturers are unwilling to abandon customers. As a result, the steel used in the joint is not standard; causing the hose to leak after a period of use.
3. Improper selection of tube body. Different pipes should be used for hydraulic systems due to different working environments. Now hydraulic hoses are mainly divided into rubber hoses and hydraulic resin hoses. The resin tube is a new product. After various demonstrations, the hose is resinized to fully demonstrate the advantages of the product. However, some of the resin tubes have a larger bending radius. The resilience is not good. In addition, high-pressure hoses are divided into oil resistance, temperature resistance, corrosion resistance, etc., which requires designers to select appropriate pipe materials.
4. Reasons for withholding. At present, the products produced by small domestic manufacturers of hose crimping machines have defects such as insufficient automation, low precision, low production efficiency, and poor stability. Especially the manual control of the crimping machine is more likely to cause leakage at the hose joint. But this is not easy to change within a certain period of time. This requires manufacturers to pay more attention to the training and requirements of withholding technicians.
5. Test reason. A hose leak does not necessarily mean that the hose has not been tested. Sometimes tested. However, due to the difference between the test equipment and the working environment of the hose, unexplained failures may also be caused. For example: the pressure on the pressure tester is slow and the pulse force is not enough. The working hydraulic system is very different. Then there is the lack of responsibility of the pressure testers and the uneasy standard test.
6. Reasons for installation. Incorrect hose assembly and equipment assembly are another major cause of leakage. Both the assembly method and the tightening force are strict.
Solution:
1. Choose suitable pipes according to the working environment.
2. Purchasing joints strictly according to standards.
3. Improve the assembly method, try to use mechanical assembly and automated assembly.
4. Improve equipment. Improve staff's work quality and sense of responsibility.
5. Test strictly according to the standard, and try to ensure a 100% detection rate.
6. Choose qualified oil. Replace the aging hose in time.
of course. Leakage of hydraulic pipes is inevitable. Manufacturers must strictly require themselves to reduce the failure rate. Generally speaking, the national standard allows a leakage rate of 3%. The European national standard is one percent. It is reported that the hose failure rate of a certain domestic enterprise has reached no more than 8%. This shows that just do it with your heart. Domestic products are still comparable to imported ones.

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