Technology for producing new viton coating metal sealing gasket for internal combustion engine use
A metal sealing gasket and preparation process technology, which is applied to the sealing device of the engine, mechanical equipment, engine components, etc., can solve problems such as difficulty in popularization, complicated production process, and poor coating performance, so as to shorten production time, The coating has good leveling property and the effect of shortening the cycle
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Embodiment 1
[0007] Example 1: 100 parts of 26-type fluororubber raw rubber, 250 parts of mixed solvent, 25 parts of carbon black, 1.5 parts of KH-560 silane coupling agent, 30 parts of 3# vulcanizing agent, 5 parts of magnesium oxide, phenylmethyl poly 3 parts of siloxane resin and 3 parts of molybdenum disulfide. Preparation method: Weigh the above raw materials according to the formula to make fluororubber coating, then degrease the metal substrate by soaking in gasoline, and then polish it. Apply the fluorine rubber coating by means of silk screen printing, and then punch the coated plate to make a metal gasket of the fluorine rubber coating, or apply glue on the stamped plate.
Embodiment 2
[0008] Example 2: 100 parts of 26-type fluororubber raw rubber, 350 parts of mixed solvent, 35 parts of carbon black, 3 parts of KH-560 silane coupling agent, 50 parts of 3# vulcanizing agent, 15 parts of magnesium oxide, phenylmethyl poly 7 parts of siloxane resin and 7 parts of molybdenum disulfide. Preparation method: Weigh the above raw materials according to the formula to make fluororubber coating, then degrease the metal substrate by soaking in gasoline, and then polish it. Apply the fluorine rubber coating by means of silk screen printing, and then punch the coated plate to make a metal gasket of the fluorine rubber coating, or apply glue on the stamped plate.
Embodiment 3
[0009] Example 3: 100 parts of 26-type fluororubber raw rubber, 300 parts of mixed solvent, 30 parts of carbon black, 2.5 parts of KH-560 silane coupling agent, 40 parts of 3# vulcanizing agent, 10 parts of magnesium oxide, phenylmethyl poly 5 parts of siloxane resin and 5 parts of molybdenum disulfide. Preparation method: Weigh the above raw materials according to the formula to make fluororubber coating, then degrease the metal substrate by soaking in gasoline, and then polish it. Apply the fluorine rubber coating by means of silk screen printing, and then punch the coated plate to make a metal gasket of the fluorine rubber coating, or apply glue on the stamped plate.
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