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EPS foaming filling process for blow molding products

A technology for foam filling and products, applied in the field of foam filling technology, can solve the problems of uneven foaming effect, and achieve the effects of convenient filling and molding, low water absorption rate of products, and solving uneven foaming effect.

Inactive Publication Date: 2020-02-14
光之能(厦门)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an EPS foam filling process for blow molded products to at least solve the problem of uneven foaming effect in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The foaming agent raw materials in the embodiment of the present invention include 96 parts by weight of HIPS beads and 4 parts by weight of n-pentane.

[0021] Embodiment 1 of the present invention blow molded product foam filling process is as follows:

[0022] Step 1: Mix and fill the foaming agent raw materials into the pre-blown hollow product, install the hollow product in the shaping tool, and pre-foam at a temperature of 93-98 ℃ for 4 minutes;

[0023] Step 2: Pass high-temperature steam into the hollow product until the EPS beads are completely melted;

[0024] Step 3: Use a freezer to cool the hollow product to obtain the product.

Embodiment 2

[0026] The foaming agent raw materials in the embodiment of the present invention include 96 parts by weight of HIPS beads and 4 parts by weight of decafluoropentane.

[0027] Embodiment 2 of the present invention blow molding product foam filling process is as follows:

[0028] Step 1: Mix and fill the foaming agent raw materials into pre-blown hollow products and pre-foam at a temperature of 93-98 ° C for 4 minutes;

[0029] Step 2: Pass high-temperature steam into the hollow product until the EPS beads are completely melted;

[0030] Step 3: Use a freezer to cool the hollow product to obtain the product.

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PUM

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Abstract

The invention provides an EPS foaming filling process for blow molding products. The EPS foam filling process includes the following steps that step 1, foaming agent raw materials are mixed and pouredinto a hollow product obtained through blow molding in advance to be subjected to pre-foaming at a temperature of 93-98 DEG C for 4-6 min; step 2, high-temperature steam is introduced into the hollowproduct until EPS beads are completely melted; and step 3, the hollow product is cooled to obtain the product. Compared with the prior art, the foaming filling process is adopted to effectively improve the uniformity of EPS foam, the problem of the uneven foaming effect is solved, it is ensured that the blow molding product can be effectively supported by the EPS foam, and the service life of theblow molding product is prolonged.

Description

technical field [0001] The invention relates to a foam filling process, in particular to an EPS foam filling process for blow molded products. Background technique [0002] Existing blow molding products are widely used because of their light weight, easy molding, and low cost. However, the inside of the blow molded product is hollow, and it is easy to bend due to external force, which will damage the blow molded product and affect the service life of the blow molded product. In the prior art, the foam filling method is used to fill the blow molded products with foam material, and the foam material is used to support the structure of the blow molded products to improve the durability of the blow molded products, but the current foam filling process of blow molded products The foaming material cannot be foamed evenly, resulting in uneven foaming state, resulting in uneven support effect, and insufficient support of blow molded products. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/18B29B11/06B29K25/00
CPCB29B11/06B29C44/18B29K2025/06B29K2025/08
Inventor 江星莹邹勇胜
Owner 光之能(厦门)科技有限公司