What kind of process performance test should be done for sealed corrosion-resistant O-rings?
Sealed corrosion-resistant O-ring is generally processed by plastic. Plastic is a basic raw material for industrial production. It has reversible deformation performance and high elasticity. Used to manufacture seals are widely used in all walks of life, in order to distinguish the quality of its advantages and disadvantages, in addition to the appearance and specifications to meet the requirements, there is also a crucial index value can not be ignored, that is the process performance test, corrosion resistance O-ring actually do what kind of process performance test?
I. Process performance test:
Sealing ring process performance is generally determined by raw materials, when the sealing ring has been developed after its own process performance is basically set, so in many cases, businesses in processing before, it should be used for the raw materials for a standardized test. The actual test items are as follows:
1, rubber material physical performance test:
The specific content of testing is more and more, including Shore A hardness test, release strength test, tensile property test, tear property test, reducing fatigue heat test, stretching fatigue test, flexural cracking test, crack improvement test, low temperature brittleness test, elasticity test, compression deformation test, flexural cracking test, wear resistance test and solution resistance test, etc.
2. Check the physical properties of unrubberized materials:
The key to unrubber materials refers to raw rubber and its blended rubber. The effect of unvulcanized rubber performance test is to carry out service projects for production, processing and manufacturing. The test project includes Mooney viscosity test, Mooney embrittlement measurement, early rubber vulcanization function test and rubber vulcanization characteristic test.
Two, types of rubber raw materials:
According to the structure of rubber raw materials, it can be divided into small pieces of raw rubber, natural latex, liquid rubber and powder rubber.
According to the application of plastics, they can be divided into general and special types.
According to the source of rubber raw materials and their origin can be divided into natural rubber and rubber two categories. In recent years, with the development of formation technology, the amount of styrene butadiene rubber is relatively large.
According to the appearance of plastic shape can be solid plastic (generally known as dry rubber), plastic (called natural latex), liquid rubber and powder rubber four categories.
According to the plastic properties and main uses of the analysis, in addition to natural rubber, styrene butadiene butadiene rubber can be divided into general styrene butadiene butadiene rubber, semi-universal styrene butadiene butadiene rubber, special styrene butadiene butadiene rubber and special styrene butadiene butadiene rubber these four kinds.
In order to ensure the quality of the sealed corrosion-resistant O-ring produced and prevent its premature aging and ineffectiveness, the manufacturer should be sure to do a good job in the process performance testing.
