PVT特性计算模型推定系统和方法

By using the PVT characteristic calculation model estimation system, a calculation model for the PVT characteristics of unknown materials is generated using known material PVT characteristics and sensor data. This solves the problem of unstable molding quality of resin materials and achieves low-cost and efficient molding quality control.

CN117642268BActive Publication Date: 2026-07-17HITACHI LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HITACHI LTD
Filing Date
2022-06-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In injection molding, the differences in PVT properties of resin materials lead to unstable molding quality. In particular, recycled materials have large deviations in PVT properties. Existing technologies require multiple experiments and are costly, making it difficult to build a low-cost PVT property calculation model.

Method used

The PVT property calculation model estimation system uses known material PVT property calculation models and sensor data to generate predetermined relationships, thereby estimating the PVT property calculation model for unknown materials, reducing the number of experiments and costs.

Benefits of technology

It enables rapid and low-cost estimation of the PVT characteristics of resin materials, improving the stability of the molding quality of recycled materials and the accuracy of molding condition adjustment.

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Abstract

能够容易地推定树脂材料的PVT特性计算模型。在对树脂材料的树脂材料计算模型进行推定的PVT特性计算模型推定系统(1)中,包含控制装置(11)和由控制装置(11)使用的存储装置(13),运算装置(11)基于通过所述第一树脂材料进行了成形时的工艺数据和成形品品质、以及至少一个以上的预定的关系式,推定所述第一树脂材料计算模型,所述预定的关系式表示第二树脂材料计算模型与对所述第二树脂材料进行了成型时的工艺数据和成形品品质的关系,所述第二树脂材料计算模型是通过实测与所述第一树脂材料为同一树脂种类的第二树脂材料的PVT特性而得到的PVT特性的计算模型,使用将所述第二树脂材料计算模型与使用所述第二树脂材料进行了成形时的工艺数据和成形品品质关联起来蓄积在存储装置(13)中的数据来生成所述预定的关系式。
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