Introduction
This article will attempt to provide an overview of YB/T129-1997, a standard, or document, issued by the Chinese State General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) for plastic injection mould steel modules (PIPSMs). Specifically, the article will cover the meaning of the standard, the situations it applies to, its purpose and scope, as well as its provisions and recommendations.
Meaning of the Standard
YB/T 129-1997 is a Chinese standard for PIPSMs. This standard helps define and regulate the characteristics and quality of this type of moulding material. Specifically, it helps ensure that moulds made using PIPSMs meet specific safety and performance criteria, thus ensuring that these moulds can be used reliably in the manufacturing of plastic parts.
Situations That Apply
The YB/T 129-1997 standard is applicable to all plastic injection moulds created with PIPSMs as the main material. This means that it applies to all moulds used to manufacture plastic parts, regardless of the size, shape, or complexity of the part being created.
Purpose and Scope
The purpose of YB/T 129-1997 is to establish the required criteria for PIPSMs that are used for moulding plastic components. Specifically, this standard lists the parameters for which moulds must meet in order to be deemed of suitable quality. The scope of this standard includes all PIPSMs used in the moulding of plastic parts, regardless of the complexity of the part being moulded. Additionally, this standard outlines the process of inspection and testing by which these moulds must abide by in order to be deemed of adequate quality.
Provisions and Recommendations
The YB/T 129-1997 standard outlines a number of specifications and quality requirements that must be adhered to when creating PIPSMs for the moulding of plastic parts. These provisions and recommendations are broken down into several sections which include, but are not limited to, the following:
• General requirements for PIPSMs, including safety, performance, and other basic features;
• Chemical composition requirements for the module’s steel material;
• Mechanical properties requirements for the steel module;
• Heat treatment parameters;
• Dimensional requirements for PIPSM-designed steel components;
• Roughness and tolerance requirements for the steel module;
• Geometric features requirements for PIPSM-designed plastic parts;
• Corrosion resistance of the module’s steel material; and
• Quality control procedures for the plastic injection moulding process itself.
Conclusion
In conclusion, YB/T 129-1997 is a Chinese standard that outlines the requirements for PIPSMs used in the plastic injection moulding process. This standard provides guidance regarding the safety, performance, and other general requirements that must be met when creating moulds with this type of material as well as outlines the required processes and procedures for quality control of the moulding process.
