Prinsipyo ng deceleration ng twin-screw extruder

2022-09-19

Ang Ningbo Fangli Technology Co., Ltd. ay isang mechanical equipment manufacturer na may halos 30 taong karanasan ngplastic pipe extrusion equipment, bagong proteksyon sa kapaligiran at mga bagong materyales na kagamitan. Mula nang itatag ang Fangli ay binuo batay sa mga kahilingan ng gumagamit. Sa pamamagitan ng patuloy na pagpapabuti, independiyenteng R&D sa pangunahing teknolohiya at panunaw at pagsipsip ng advanced na teknolohiya at iba pang paraan, nakabuo kamiPVC pipe extrusion line, PP-R pipe extrusion line, PE water supply / gas pipe extrusion line, na inirekomenda ng Chinese Ministry of Construction na palitan ang mga imported na produkto. Nakuha namin ang pamagat ng "Unang-klase na Brand sa Lalawigan ng Zhejiang".

 

Sa karamihanmga extruder, the screw speed changes by adjusting the motor speed. The drive motor usually rotates at full speed of about 1750 rpm, which is too fast for an extruder screw. If it rotates at such a fast speed, too much friction heat will be generated, and the retention time of plastic is too short to prepare a uniform and well stirred melt. The typical reduction ratio should be between 10:1 and 20:1. In the first stage, both gears and pulley blocks can be used, but in the second stage, it is better to use gears and position the screw at the center of the last big gear. For some slow running machines (such as twin screws for UPVC), there may be three deceleration stages, and the maximum speed may be as low as 30rpm or less (ratio of 60:1). On the other hand, some long twin screws used for stirring can run at 600rpm or faster, so a very low deceleration rate and more deep cooling are required.

 

Kung kailangan mo ng karagdagang impormasyon, tinatanggap ka ng Ningbo Fangli Technology Co., Ltd. na makipag-ugnayan para sa isang detalyadong pagtatanong, bibigyan ka namin ng propesyonal na teknikal na patnubay o mga mungkahi sa pagkuha ng kagamitan.

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