阅读说明：本技术 一种ps地脚线co2物理发泡工艺 (PS baseboard CO2Physical foaming process ) 是由 张晶 郭鑫齐 于 2021-09-30 设计创作，主要内容包括：本发明公开了一种PS地脚线CO-(2)物理发泡工艺,包括：S1：采用自动吸料系统分别吸取PS树脂和滑石粉,将其混合均匀,得混合料；S2：将上述步骤得到的混合料通过自动喂料系统加入到双螺杆挤出机中挤压熔融,同时注入CO-(2),降温得到挤出料；S3：向上述挤出料中注入脱模剂,然后在模具口冷却成型；S4：经过水冷却系统冷却；S5：然后牵引系统牵引和切割系统的切割；S6：最后经过打包系统打包。该PS地脚线CO-(2)物理发泡工艺机械化生产,生产效率高,产品不仅表面光滑不开裂不变形,质轻美观而且保温,易于搬运和运输,并且可以循环再利用,是一种环保的装饰材料。(The invention discloses a PS skirting CO 2 A physical foaming process comprising: s1: respectively absorbing the PS resin and the talcum powder by using an automatic material absorbing system, and uniformly mixing to obtain a mixture; s2: adding the mixture obtained in the above steps into a double-screw extruder through an automatic feeding system for extrusion and melting, and simultaneously injecting CO 2 Cooling to obtain an extruded material; s3: injecting a release agent into the extruded material, and then cooling and forming at a die opening; s4: cooling by a water cooling system; s5: then the traction system draws and cuts the cutting system; s6: and finally, packaging by a packaging system. The PS skirting CO 2 The physical foaming process is mechanized, the production efficiency is high, the product has smooth surface, no cracking, no deformation, light weight, beautiful appearance, heat preservation, easy transportation and transportation, and can be recycled, thereby being a productAn environment-friendly decorative material.)

1. PS baseboard CO₂The physical foaming process is characterized by comprising the following steps: the method comprises the following steps in sequence:

s1: respectively absorbing the PS resin and the talcum powder by using an automatic material absorbing system, and uniformly mixing to obtain a mixture;

s2: adding the mixture obtained in the above steps into a double-screw extruder through an automatic feeding system for extrusion and melting, and simultaneously injecting CO₂Cooling to obtain an extruded material;

s3: injecting a release agent into the extruded material, and then cooling and forming at a die opening;

s4: cooling by a water cooling system;

s5: then the traction system draws and cuts the cutting system;

s6: and finally, packaging by a packaging system.

2. The PS baseboard CO of claim 1₂The physical foaming process is characterized by comprising the following steps: in step S2, the temperature of each zone of the twin-screw extruder was set at 200-230 ℃.

3. The PS baseboard CO of claim 1₂The physical foaming process is characterized by comprising the following steps: in step S2, the temperature of each zone of the twin-screw extruder was set at 210 ℃ and 220 ℃.

4. The PS baseboard CO of claim 1₂The physical foaming process is characterized by comprising the following steps: in step S2, the extrusion temperature is precisely controlled by the heat exchanger and the oil temperature machine after the temperature reduction.

5. The PS baseboard CO of claim 1₂The physical foaming process is characterized by comprising the following steps: in step S2, the CO injection₂Controlling the pressure to15MPa。

Technical Field

The invention belongs to the technical field of production of skirting lines, and particularly relates to a PS skirting line CO₂And (3) a physical foaming process.

Background

At present, the skirting in a house is generally finished by adopting wood materials and PVC (polyvinyl chloride), the wood materials are fine and dry, are easy to shrink after being wetted, generate the phenomenon of warping and deformation, are troublesome to install and expensive, and can destroy the ecological environment by using excessive wood.

The PVC material is not high temperature resistant and dry, if the room suffers the insolation of sun throughout the year, the skirting line discolours easily and even blooms, not only influences pleasing to the eye, practicality also greatly reduced. The PVC skirting line is made of special materials, the quality of the PVC skirting line is not firm, and the PVC skirting line is easy to deform, twist and even fall off after being used for several years.

Aiming at the problems of wood and PVC, the company adopts a double-screw extruder CO₂The PS skirting produced by the production method and the process of the physical foaming extrusion molding has the advantages of smooth surface, no cracking, no deformation, good mechanical property, light weight, beautiful appearance and heat preservation.

Disclosure of Invention

The invention aims to provide a PS skirting CO₂A physical foaming process to solve the problems proposed in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: PS baseboard CO₂The PS baseboard produced by the method has smooth surface, no cracking, no deformation, good mechanical property, light weight, beautiful appearance and heat preservation, and the produced product is a hundred-percent environment-friendly green decorative material and comprises the following steps in sequence:

s1: respectively absorbing the PS resin and the talcum powder by using an automatic material absorbing system, and uniformly mixing to obtain a mixture;

s2: adding the mixture obtained in the above steps into a double-screw extruder through an automatic feeding system for extrusion and melting, and simultaneously injecting CO₂Cooling to obtain an extruded material;

s3: injecting a release agent into the extruded material, and then cooling and forming at a die opening;

s4: cooling by a water cooling system;

s5: then the traction system draws and cuts the cutting system;

s6: and finally, packaging by a packaging system.

Preferably, in step S2, the temperature of each zone of the twin-screw extruder is set at 200-230 ℃.

In any of the above schemes, it is preferable that the temperature of each zone of the twin-screw extruder is set to 210-220 ℃ in step S2.

In any of the above schemes, preferably, in step S2, the temperature of the extruded material is accurately controlled by the heat exchanger and the oil temperature machine after the temperature reduction.

In any of the above embodiments, preferably, in step S2, the CO injection₂The control pressure was 15 MPa.

The invention has the technical effects and advantages that: the PS skirting CO₂The product has smooth surface, no cracking, no deformation, light weight, beautiful appearance, heat preservation, easy transportation and transportation, and can be recycled, thus being an environment-friendly decorative material.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Example 1:

PS baseboard CO₂The physical foaming process comprises the following steps in sequence:

s1: respectively absorbing the PS resin and the talcum powder by using an automatic material absorbing system, and uniformly mixing to obtain a mixture;

s2: adding the mixture obtained in the above steps into a double-screw extruder through an automatic feeding system for extrusion and melting, wherein the temperature of each area of the double-screw extruder is set to 200-230 ℃, and simultaneously injecting CO₂Injection of CO₂Controlling the pressure to be 15MPa, cooling to obtain an extruded material, and accurately controlling the temperature of the extruded material through a heat exchanger and an oil temperature machine after cooling;

s3: injecting a release agent into the extruded material, and then cooling and forming at a die opening;

s4: cooling by a water cooling system;

s5: then the traction system is used for traction and cutting by the cutting system, and the traction system is a traction machine;

s6: and finally, packaging by a packaging system, wherein the packaging system is a packaging machine.

Example 2:

PS baseboard CO₂The physical foaming process comprises the following steps in sequence:

s1: respectively absorbing the PS resin and the talcum powder by using an automatic material absorbing system, and uniformly mixing to obtain a mixture;

s2: adding the mixture obtained in the above steps into a double-screw extruder through an automatic feeding system for extrusion and melting, setting the temperature of each area of the double-screw extruder to 210-220 ℃, and simultaneously injecting CO₂Injection of CO₂Controlling the pressure to be 15MPa, cooling to obtain an extruded material, and accurately controlling the temperature of the extruded material through a heat exchanger and an oil temperature machine after cooling;

s3: injecting a release agent into the extruded material, and then cooling and forming at a die opening;

s4: cooling by a water cooling system;

s5: then the traction system is used for traction and cutting by the cutting system, and the traction system is a traction machine;

s6: and finally, packaging by a packaging system, wherein the packaging system is a packaging machine.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.