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近年来，一些塑料机械厂已成功地制造出塑料型材专用拱型机，其弯制型材原理为：（1）先在型材内腔衬制特种耐高温材料；（2）将型材在高温导热油中软化；（3）将预加热的型材在平台上定型成需要的拱型式样。此设备价格约5万多元，占地约10m’，因此花费成本较高。江苏盐城新利
In recent years, some plastic machinery factories have successfully manufactured special arching machines for plastic profiles. The principle of curved profiles is: (1) first lining special high temperature resistant materials in the inner cavity of profiles; (2) heat conducting oils at high temperatures Middle softening; (3) The pre-heated profile is shaped into the desired arch pattern on the platform. The equipment costs about 50,000 yuan and covers an area of about 10m’, so the cost is high. Yancheng Xinli, Jiangsu