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  • Brief introduction of the basic performance of O-ring (1)

    Brief introduction of the basic performance of O-ring (1)

    O-ring is a synthetic rubber seal made by copolymerizing butadiene and acrylonitrile. It is a synthetic rubber with good oil resistance (especially nitrile rubber alkane oil) and good aging resistance. There are five types of acrylonitrile content (%) in the nitrile rubber: 42-46, 36-41, 31-35, 25-3... read more

    Dec 20,2019 News
  • Introduction to the basic performance of O-rings (2)

    Introduction to the basic performance of O-rings (2)

    Under the condition of 100% humidity, the silicone O-ring can absorb and condense water vapor equivalent to 40% of its own weight. As a desiccant, the average pore size of silica gel is 24 angstroms (length unit). The o-ring can absorb moisture even when the temperature is greater than 105 ° C, but ... read more

    Dec 28,2019 News
  • How to distinguish the type and material of the seal? (1)

    How to distinguish the type and material of the seal? (1)

    First, the production process of large specifications and large size O-rings 1.When selecting large size O-rings, pay attention to the following technical details (1) Calculate the pre-stretch rate (piston seal) or pre-compression rate (piston rod seal), section shrinkage; (2) Pay attention to the c... read more

    Jan 04,2020 News
  • How to distinguish the type and material of the seal? (2)

    How to distinguish the type and material of the seal? (2)

    2.The oil resistance of nitrile rubber O-rings NBR rubber O-rings are resistant to most oils, especially to alkane oils. There are two types of oils: alkane oils and aromatic oils. Alkane oils refer to the molecular structure of the chain. Aromatic oils refer to the molecular chain containing benzen... read more

    Jan 11,2020 News
  • How to distinguish the type and material of the seal? (3)

    How to distinguish the type and material of the seal? (3)

    How to identify the specific material of rubber products There are many kinds of O-rings produced by our company, including Ding Qing O-rings, fluorine rubber O-rings, silicone O-rings, EPDM O-rings, neoprene O-rings, etc. What about these materials? 1.Medium weight resistance experiment Samples can... read more

    Jan 21,2020 News