Temperature control method based on phase-transition energy-accumulation material

A temperature control method and phase change energy storage technology, which is applied in the field of temperature control of precision molding product processing devices, to achieve the effects of eliminating temperature rise, solving large fluctuations in temperature changes, and reducing dosage

Active Publication Date: 2012-06-13
BEIJING UNIV OF CHEM TECH
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention can realize the automatic control of the mold temperature, with high control accuracy and high degree of automation, but the problem of heating up the ice water still cannot be solved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Temperature control method based on phase-transition energy-accumulation material
  • Temperature control method based on phase-transition energy-accumulation material
  • Temperature control method based on phase-transition energy-accumulation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 Shown is the precision injection molding method of Embodiment 1 using the temperature control method based on the phase change energy storage material of the present invention. The molding device is mainly composed of an ejector push plate 1-1, a fixed plate 1-2, a movable mold part 1-3, Guide pillar 1-4, phase change energy storage material channel 1-5, circulating cooling water channel 1-6, cavity plate 1-8, ejector pin 1-9, fixed mold part 1-10, ejection push plate 1- 1 is fixedly connected with the thimble 1-9, and can move horizontally to complete the ejection action of the plastic product 1-7; the cavity plate 1-8 is installed on the movable mold part 1-3, and several rear ends of the cavity plate 1-8 are arranged Cooling channels, phase change energy storage material channels 1-5 and circulating cooling water channels 1-6 are arranged in front of and behind, phase change energy storage material channels 1-5 realize cooling and shaping of products...

Embodiment 2

[0033] see image 3 The temperature control method of the present invention based on the phase change energy storage material is used to control the temperature of the feeding barrel of the plasticizing injection device of the injection molding machine. The working principle and effect of this embodiment are basically the same as those of Embodiment 1. The diameter of the hopper near the feeding port of the feeding system of the injection device gradually decreases. If the temperature of the solid conveying area is too high, the material at the bottom of the feeding port will melt under the action of heat transfer, and the material will form a compacted solid, preventing the raw material from entering the plasticizing system. This is The so-called bridging phenomenon. Appropriately increasing the cooling system at the feeding port can effectively solve the bridging phenomenon. Therefore, in this embodiment, the phase change energy storage material channel 2-1 and the circulat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
phase transition temperatureaaaaaaaaaa
phase transition temperatureaaaaaaaaaa
phase transition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses a temperature control method based on a phase-transition energy-accumulation material. In the method, the phase-transition energy-accumulation material is selected according to a required control temperature, so that the phase-transition temperature of the phase-transition energy-accumulation material can be a set control temperature of a device; in a product processing process, the selected phase-transition energy-accumulation material in a solid-liquid mixed state is introduced into an energy-accumulation material channel, a temperature-control area is close to the phase-transition energy-accumulation material channel, and a constant-temperature temperature-control medium is provided by utilizing the energy-accumulation property of the phase-transition energy-accumulation material. By adopting the temperature control method based on the phase-transition energy-accumulation material, the temperature around a cavity is stably controlled under the phase-transition temperature of the selected material, the phase-transition material is molten from the solid state to the liquid state at a fixed temperature after absorbing heat so as to form a heat-absorption mechanism, and large heat absorption amount ensures that the temperature around the cavity is relatively balanced; after being properly cooled, the phase-transition material is solidified from the liquid state to the solid state so as to form a heat release mechanism at the fixed temperature, so that the temperature around the cavity is relatively balanced and continuously recycled.

Description

technical field [0001] The invention relates to a temperature control method of processing equipment, in particular to a temperature control method of a precision molding product processing device, which adopts the energy storage principle of phase change materials. Background technique [0002] The rise of high-tech fields such as aerospace, consumer electronics, and biomedicine has put forward higher requirements for the precision of polymer materials and other products. Plastic products are required to have both fine dimensional structural features and high strength; they are required to have excellent mechanical properties and be easy to form and process. For example, the injection molding process is the most important means of forming polymer materials, and it has broad application prospects and development potential in the field of high-tech technology. Precision injection molding machines have been successfully developed as early as the 1980s. After decades of develo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/78
Inventor 杨卫民王小华丁玉梅
Owner BEIJING UNIV OF CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap