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Reinforced graphite sealing sole plate and its making process

A graphite sealing and enhanced technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of low strength, unseen, poor processability of gasket processing, etc., to achieve high strength, good process performance, and outstanding essence The effect of sexuality

Inactive Publication Date: 2005-11-30
烟台铭祥控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the gasket material used for the joints of equipment and pipeline flanges is generally flexible graphite material, and its composite plate can be used as the base material of the cylinder head gasket. The flexible graphite plate is formed at room temperature, and the expanded graphite is pressed into shape, so its strength Low, the processability of gasket processing is poor, so a reinforced graphite sealing backing plate with high strength and good processability of gasket processing formed by the sheet forming machine has not been seen so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, accurately weigh 10 kilograms of nitrile rubber, 40 kilograms of graphite, 32 kilograms of sepiolite fiber, 1 kilogram of sulfur, 2 kilograms of accelerator M2, 1 kilogram of antioxidant D, 4 kilograms of zinc oxide, 30 kilograms of benzene, and mix Add the weighed nitrile rubber, sulfur, accelerator M, anti-aging agent D, and zinc oxide into the feeder and stir for 5 minutes, add sepiolite fiber and solvent dipping, the dipping time is 25 minutes, add graphite, and stir for 2 hour, mix until the large material is soft and bright, no glue beans, no dry material, no hard core, and then form a sheet. First, the temperature of the large roller of the sheet forming machine rises. When it reaches 100 ° C, adjust the baffle to hang the skin After the large material is loaded, hang the outer skin material, and then stop and cut the board; finally, vulcanize, the vulcanization conditions are: vulcanization temperature 140 ° C, vulcanization pressure 1.0 MPa, vulcan...

Embodiment 2

[0025] Embodiment 2, accurately weigh 5 kilograms of natural rubber, 20 kilograms of graphite, 20 kilograms of sepiolite fiber, 0.5 kilogram of TMTD, 2 kilograms of accelerator DM, 0.5 kilogram of antioxidant BLE, 3 kilograms of stearic acid, 20 kilograms of toluene, in Add the weighed natural rubber, TMTD, accelerator DM, anti-aging agent BLE, stearic acid into the mixer and stir for 5 minutes, add sepiolite fiber and solvent dipping, the dipping time is 20 minutes, add graphite, stir 1.5 hours, mix until the large material is soft and bright, no glue beans, no dry material, no hard core, and then form a sheet. First, the temperature of the large roller of the sheet forming machine rises. When it reaches 90 ° C, adjust the baffle to hang Leather material, and then put in the large material, and start cutting. After the large material is loaded, hang the outer leather material, and then stop and cut the board; finally, vulcanize. The vulcanization conditions are: vulcanization ...

Embodiment 3

[0026] Embodiment 3, accurately weigh 15 kilograms of natural rubber, 60 kilograms of graphite, 45 kilograms of sepiolite fiber, 1.5 kilograms of TMTD, 2.5 kilograms of accelerator TMTD, 1.5 kilograms of antioxidant BLE, 5 kilograms of stearic acid, 40 kilograms of gasoline, Add the weighed natural rubber, TMTD, accelerator TMTD, anti-aging agent BLE, stearic acid in the mixer and stir for 5 minutes, add sepiolite fiber and solvent dipping, the dipping time is 30 minutes, add graphite, Stir for 2.5 hours until the aniseed material is soft and bright, with no glue beans, no dry material, and no hard core, and then form a sheet. First, the temperature of the large roller of the sheet forming machine rises. When it reaches 1-10°C, adjust Hang the leather material on the baffle, then put in the large material, and start cutting. After the large material is loaded, hang the outer leather material, and then stop and cut the board; finally, vulcanize. 30 minutes.

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PUM

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Abstract

The reinforced sealing graphite stool plate is made with the materials including rubber 5-15 (in weight portions, the same below), graphite 20-60, reinforcing fiber 20-45, sulfurizing agent 0.5-1.5, promoter 1.5-2.5, antiager 0.5-1.5, activator 3-5 and solvent 20-40 and through the process of mixing in a stirrer, sheeting in a sheeter and final sulfurizing. The reinforced sealing graphite stool plate has high strength, good making technical performance and simple making process.

Description

(1) Technical field: [0001] The invention relates to the technical field of sealing backing plates, in particular to a reinforced graphite sealing backing plate and a preparation method thereof. (two) background technology: [0002] At present, the gasket material used for the joints of equipment and pipeline flanges is generally flexible graphite material, and its composite plate can be used as the base material of the cylinder head gasket. The flexible graphite plate is formed at room temperature, and the expanded graphite is pressed into shape, so its strength Low, and the manufacturability of processing gaskets is poor, so a reinforced graphite sealing backing plate with high strength and good manufacturability of gaskets formed by a sheet forming machine has not been seen so far. (3) Contents of the invention: [0003] The object of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a reinforced graphite sealing backing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/10
Inventor 姜寿松罗峰章卫东辛小萍
Owner 烟台铭祥控股有限公司