Standard No.:	T/CRIA 22005-2019
English Name:	Mould for tyre—Micro spring vent
Chinese Name:	轮胎模具 弹簧气套
Chinese Classification:	G95    Machinery for rubber and plastic
Professional Classification:	T/    Social Organization Standard
Source Content Issued by:	CRIA
Issued on:	2019-11-07
Implemented on:	2020-1-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	5500 words
Translation Price(USD):	165.0
Delivery:	via email in 1 business day

T/CRIA 22005-2019 Mould for tyre — Micro spring vent 1 Scope This standard specifies terms and definitions, requirements, inspection, acceptance, as well as marking, packaging, transportation and storage of micro spring vent for vulcanized mould for tyre. This standard is applicable to the micro spring vent components of vulcanized mould for tyre. Other micro spring vents of rubber mould can refer to this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 191 Packaging - Pictorial marking for handling of goods GB/T 699 Quality carbon structure steels GB/T 1222 Spring steels GB/T 8731 Free-cutting structural steels GB/T 8845 Dies and moulds - Terminology GB/T 20878 Stainless and heat-resisting steels - Designation and chemical composition HG/T 3227.1 Mould for tyre covers - Part 1: Segmented mould HG/T 3227.2 Mould for tyre covers - Part 2: Two pieces mould 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 8845, HG/T 3227.1 and HG/T 3227.2 and the following apply. 3.1 sleeve shell a component that can accommodate core set and spring, and restrict the closed height of core set 3.2 core set a component that fits with sleeve shell to form a closed structure and moves back and forth under the elastic force of spring 3.3 closed height distance between the highest point of core set under the spring force and the lowest point after complete closure 3.4 close force force required for core set to completely close from its highest point to its lowest point 3.5 ventilation flux volume of air passing through the exhaust channel of the product within the specified pressure and time 4 Structural types The micro spring vents are divided into integral micro spring vent and split micro spring vent. See Figures 1 and 2 respectively for the structural diagrams.

Contents Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Structural types 5 Requirements 6 Inspection methods 7 Inspection rules 8 Marking, packaging, transportation and storage