PVDC film blowing shrinkage rate control method
The invention relates to a PVDC (Polyvinyl Dichloride) blown film shrinkage rate control method which comprises the following steps: melt extrusion: setting the extrusion amount of PVDC blown films with different specifications to be unchanged; different widths of the PVDC blown film are controlled...
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| creator | NI XIANGBIN TIAN JIANXIN BAI HAIYING |
| description | The invention relates to a PVDC (Polyvinyl Dichloride) blown film shrinkage rate control method which comprises the following steps: melt extrusion: setting the extrusion amount of PVDC blown films with different specifications to be unchanged; different widths of the PVDC blown film are controlled by controlling the water temperature of the cold water tank, and the blowing temperature of the PVDC blown film is controlled to be consistent by controlling the water temperature of the hot water tank; the thickness of the PVDC blown film is controlled to be consistent by controlling the rotating speed of a front traction roller; and the shrinking percentage levels of PVDC blown films with different specifications are controlled to be equivalent by controlling the working temperature of the drying oven and the traction tension of the rear traction roller. According to the method, a set of shrinkage rate mathematical relationship close to reality is summarized through tests, exploration and conclusion, complicated |
| format | Patent |
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According to the method, a set of shrinkage rate mathematical relationship close to reality is summarized through tests, exploration and conclusion, complicated</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</subject><subject>PERFORMING OPERATIONS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAPCHNxVkjLzMlVSMrJL8_MS1cozijKzMtOTE9VKEosSVVIzs8rKcrPUchNLcnIT-FhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoaGZoYmQGzhaEyMGgD0nCqB</recordid><startdate>20230523</startdate><enddate>20230523</enddate><creator>NI XIANGBIN</creator><creator>TIAN JIANXIN</creator><creator>BAI HAIYING</creator><scope>EVB</scope></search><sort><creationdate>20230523</creationdate><title>PVDC film blowing shrinkage rate control method</title><author>NI XIANGBIN ; TIAN JIANXIN ; BAI HAIYING</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN116141618A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</topic><topic>PERFORMING OPERATIONS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>NI XIANGBIN</creatorcontrib><creatorcontrib>TIAN JIANXIN</creatorcontrib><creatorcontrib>BAI HAIYING</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NI XIANGBIN</au><au>TIAN JIANXIN</au><au>BAI HAIYING</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PVDC film blowing shrinkage rate control method</title><date>2023-05-23</date><risdate>2023</risdate><abstract>The invention relates to a PVDC (Polyvinyl Dichloride) blown film shrinkage rate control method which comprises the following steps: melt extrusion: setting the extrusion amount of PVDC blown films with different specifications to be unchanged; different widths of the PVDC blown film are controlled by controlling the water temperature of the cold water tank, and the blowing temperature of the PVDC blown film is controlled to be consistent by controlling the water temperature of the hot water tank; the thickness of the PVDC blown film is controlled to be consistent by controlling the rotating speed of a front traction roller; and the shrinking percentage levels of PVDC blown films with different specifications are controlled to be equivalent by controlling the working temperature of the drying oven and the traction tension of the rear traction roller. 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| language | chi ; eng |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | PVDC film blowing shrinkage rate control method |
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