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Preparation method for SEBS deep-drawing protection film for stainless steel

A protective film and stainless steel technology, which is applied in the field of deep-drawn stainless steel plate products, can solve the problems of huge investment in environmental protection facilities, high cost of protective film, and prone to residual glue, etc., to reduce VOC emissions, high cohesion, and reduce complexity and energy consumption Process effect

Inactive Publication Date: 2020-04-28
海阳市凌晖包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies of the prior art, the present invention provides a preparation method of SEBS stainless steel deep-drawing protective film, which solves the problems of high cost of protective film, easy occurrence of residual glue, easy rebound, and huge investment in environmental protection facilities

Method used

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  • Preparation method for SEBS deep-drawing protection film for stainless steel
  • Preparation method for SEBS deep-drawing protection film for stainless steel

Examples

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Effect test

Embodiment 1

[0032] A method for preparing SEBS stainless steel deep-drawing protective film, the operation steps are as follows:

[0033] S1. Select different parts by weight of LLDPE, MPE, LDPE and mix them in a certain proportion to obtain three groups of different proportions of mixtures. The ratio of LLDPE and MPE is 2:1, the ratio of LLDPE and LDPE is 1:1, MPE The ratio with LDPE is 1.5:1.

[0034] S2. Put the three groups of mixtures and SEBS into four extruders for plasticization and extrusion. The three groups of mixtures are used as the inner layer of the film, and the SEBS is used as the outer layer of the film and enter the blow molding machine for processing.

[0035] S3. After the material is extruded, connect the air pump to inflate to form a film bubble, then immediately turn on the fan, and adjust the air volume appropriately according to the frost line of the film bubble. Excessive air volume (cooling block, low film bubble) will cause the film bubble to float up. If it is too ...

Embodiment 2

[0039] A method for preparing SEBS stainless steel deep-drawing protective film, the operation steps are as follows:

[0040] S1. Select different parts by weight of LLDPE, MPE, LDPE and mix them in a certain proportion to obtain three groups of different proportions of mixtures. The ratio of LLDPE and MPE is 2:1, the ratio of LLDPE and LDPE is 1:1, MPE The ratio with LDPE is 1.5:1.

[0041] S2. Put the three groups of mixtures and SEBS into three extruders for plasticization and extrusion.

[0042] S3. After the material is extruded, connect the air pump to inflate to form a film bubble, then immediately turn on the fan, and adjust the air volume appropriately according to the frost line of the film bubble. Excessive air volume (cooling block, low film bubble) will cause the film bubble to float up. If it is too small, the film will not cool well and the stiffness will not be good. Send the bubble tube to the traction roller and wind it along the guide roller. Then check whether th...

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Abstract

The invention discloses a preparation method for a SEBS deep-drawing protection film for stainless steel. The preparation method for the SEBS deep-drawing protection film for stainless steel comprisesthe following operation steps: selecting LLDPE, MPE and LDPE with different parts by weight, and mixing the LLDPE, MPE and LDPE in a certain ratio to obtain three mixtures with different ratios; andplacing the three mixtures and SEBS into four extruders and carrying out plastifying extrusion, taking the three mixtures as an inner layer of a film, and taking the SEBS as an outer layer of the film, and entering a blow-molding machine and machining. According to the preparation method for the SEBS deep-drawing protection film for stainless steel, the process of multilayer co-extrusion and blow-molding forming is adopted, an outer-layer PE raw material is changed into a SEBS elastomer which is taken as an adhesive layer, the other raw materials are taken as a base material layer, the LLDPE,MPE and LDPE are mixed in a certain ratio, and subjected to co-extrusion and blow-molding, and the machining is simple, one-process forming is realized, and the time and labor are saved. The protection film is machined-formed in one process through blow-molding and co-extrusion, and coating and cutting are not needed.

Description

Technical field [0001] The invention relates to the technical field of stainless steel plate deep drawing products, in particular to a method for preparing SEBS stainless steel deep drawing protective film. Background technique [0002] There are many processing procedures in the production process of stainless steel stamping parts, which are easy to cause scrap. The entire batch has bumps and pads of different degrees, sometimes even the entire batch, and the bumped parts cannot be sent, resulting in scrap, which not only affects production efficiency and product quality , And affect the input-output rate and increase the cost. [0003] After observation and actual understanding, it was found that many products on the market have protective measures, so I came up with an idea to stick a protective film on the sheet. The product requires strong tensile and anti-torsion properties to prevent stainless steel parts from being stamped. Scratches appear in the [0004] However, the prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/08B29C48/21B29C48/28B29C48/49
CPCB29C48/0017B29C48/08B29C48/21B29C48/28B29C48/49
Inventor 黄自军孙强云邓迎春高晓梅
Owner 海阳市凌晖包装有限公司