Method for manufacturing calendered rubber plate

Abstract

The invention discloses a method for manufacturing a calendered rubber plate. The method comprises the following steps: 1, mixing raw materials comprising butyl rubber, one or a mixture of two or three of mica, vermiculite and graphite, a fire retardant, one or a mixture of two or three of BaSO4, iron and iron oxide, a fiber, carbon black, a tackifier, a softener and a rubber assistant, and mix-milling the raw materials according to a mix-milling temperature of 120-170DEG C, a mix-milling pressure of 8-10MPa and a mix-milling time of 6-12min; and 2, calendering the mix-milled product in a calender according to a calendering temperature of 50-80DEG C and a linear velocity of 8-12m/min. The technology for manufacturing the calendered rubber plate used in a sound insulation cover has the advantages of simple process and low cost, and the sound insulation effect of the sound insulation cover manufactured from the calendered rubber plate is good.

Description

[0001] This application is a divisional application of the application number 201010153929.X and the application date is April 16, 2010. The name of the invention is an air conditioner compressor sound insulation cover and its manufacturing method. technical field [0002] The present invention relates to a method of manufacturing calendered rubber sheets for use in acoustic enclosures. Background technique [0003] In the existing small air conditioners, the operating noise of the air conditioner compressor is relatively large. In order to reduce the noise of the air conditioner compressor, the noise problem is generally solved through resonance analysis and system matching; now, some people also use the method of wrapping the compressor To solve the noise problem of the air conditioner compressor, but the effect of sound insulation is not good. Now, there is also a bag-type soundproof cover to isolate the noise of the air-conditioning compressor. A bag-type soundproof cove...

AI Technical Summary

Problems solved by technology

[0003] In the existing small air conditioners, the operating noise of the air conditioner compressor is relatively large. In order to reduce the noise of the air conditioner compressor, the noise problem is generally solved through resonance analysis and system matching; now, some people also use the method of wrapping the compressor To solve the noise problem of the air conditioner compressor, but the effect of sound insulation is not good

Now, there is also a bag-type soundproof cover to isolate the noise of the air-conditioning compressor. A bag-type soundproof cover is disclosed in the patent document whose application date is 2008.10. The sound insulation cover includes the bag body and the filler inside the bag body. The filler is composed of a PVC layer, a damping plate layer and a glass wool layer. The sound insulation cover of this structure is specially designed for the bag body outside the filler, which improves the Cost of production and not easy to fit the soundproof cover over the A / C compressor

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