GB/T 12784-2017 English PDF

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GB/T 12784-2017: Pressurized kneader for rubber and plastics
Status: Valid

GB/T 12784: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12784-2017	259	Add to Cart	3 days	Pressurized kneader for rubber and plastics	Valid
GB/T 12784-1991	199	Add to Cart	2 days	Dispersion mixer for rubber and plastics	Obsolete

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Basic data

Standard ID: GB/T 12784-2017 (GB/T12784-2017)
Description (Translated English): Pressurized kneader for rubber and plastics
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G95
Classification of International Standard: 71.120; 83.200
Word Count Estimation: 13,193
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Older Standard (superseded by this standard): GB/T 12784-1991
Quoted Standard: GB/T 191; GB 5226.1-2008; GB/T 6388; GB/T 9969; GB/T 12783; GB/T 13306; GB/T 13384; GB/T 24342; GB/T 24343; GB/T 24344; HG/T 2108; HG/T 3120; HG/T 3223; HG/T 3228-2001; JB/T 5438
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the terms and definitions of rubber and plastic pressurized pinch refiners, type and basic parameters, requirements, tests, inspection rules, marking, packaging, transportation and storage. This standard applies to the rubber and plastic molding and mixing (kneading) of the pinch mixer (hereinafter referred to as pinch mixer).

GB/T 12784-2017: Pressurized kneader for rubber and plastics

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Pressurized kneader for rubber and plastics ICS 71.120; 83.200 G95 National Standards of People's Republic of China Replace GB/T 12784-1991 Rubber and plastic pressurized pinch 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 12784-1991 "rubber and plastic pressurized pinch mixer", compared with GB/T 12784-1991, in addition to editorial The main technical differences are as follows. - 9 additional references were added and the original six references were updated (see Chapter 2,.1991, Chapter 2); - the addition of the terminology and definition of the pressurized pinch mixer and the schematic diagram of the other terms (see Chapter 3); --- increased model requirements (see 4.1); In order to encourage the development of new products and new technologies, the basic parameters of Chapter 4 of the original standard are moved to the data appendix for reference, And to add and modify the basic parameters (see Appendix A,.1991, Chapter 4); - adjust the order of the terms required in Chapter 5 to comply with the technological process (see Chapter 5,.1991, Chapter 5); --- the kneading machine mixing room, the rotor, the pressure mound and other parts and the material contact surface increases the "hardness below HRC45 below the surface is not Should be cracked "(see 5.2.2,.1991 edition 5.10); - extend the duration of the hydrostatic test (see 5.2.7, 5.2.8); - increased electrical system requirements (see 5.3.1); The pinch roller is subdivided at 35L and the noise value has been adjusted to improve the requirements (see 5.3.3,.1991) 5.18); - Added detection of all requirements in Chapter 5 (see Appendix B); - the "car material" was quantified, an increase of "each car in accordance with the total volume of the mixing room 0.7 times to 0.8 times the feeding" (see 6.3); - Type of test to increase. type of inspection items include the technical requirements of this standard (see 7.2); - modified rules (see 7.3,.1991 edition 7.2.3); - "Implementation of the standard number" has been added to the sign (see 8.1); - the use of the instructions to increase the implementation of the corresponding standards (see 8.2); - the product storage requirements have been modified (see 8.4,.1991 edition 8.5); --- removed the original standard Chapter 9. other. This standard is proposed by the China Petroleum and Chemical Industry Association. This standard by the National Rubber and Plastics Machinery Standardization Technical Committee (SAC/TC71) centralized. The drafting of this standard. Dalian Rubber & Plastic Machinery Co., Ltd., Beijing Rubber Industry Research and Design Institute, Zhejiang Shenda Machinery Manufacturing Co., Ltd. The main drafters of this standard. Zhang Renguang, Huang Shulin, He Cheng, Xia Xiangxiu, Du Jianxie, Li Xianglan. This standard replaced the previous version of the standard release. --- GB/T 12784-1991. Rubber and plastic pressurized pinch

1 Scope

This standard specifies the terms and definitions of rubber and plastic pressurized pinch mixer, type and basic parameters, requirements, test, inspection rules, signs, Packaging, transportation and storage. This standard applies to the rubber and plastic molding and mixing (kneading) of the pinch mixer (hereinafter referred to as pinch mixer).

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 191 packaging and storage icon Mechanical electrical safety machinery - Electrical equipment - Part 1. General technical requirements GB 5226.1-2008 GB/T 6388 shipping package collection and delivery mark General rules for the use of industrial products GB/T 9969 GB/T 12783 Rubber and plastics machinery product model preparation method GB/T 13306 signs General specification for packaging of electromechanical products GB/T 13384 Industrial machinery - Electrical equipment - Protective earthing circuit continuity test specification GB/T 24342 Industrial machinery - Electrical equipment - Insulation resistance test specification GB/T 24343 GB/T Specification for withstand voltage test of electrical equipment for industrial machinery GB/T 24344 Determination of sound pressure level of rubber mechanical noise of HG/T 2108 General technical conditions for the appearance of rubber and plastic machinery for HG/T 3120 HG/T 3223 Rubber machinery terminology Rubber and plastics - General technical requirements for mechanical painting JB/T 5438 Plastic machinery terminology

3 terms and definitions

The terms and definitions defined in HG/T 3223 and JB/T 5438 apply to this document. For ease of use, the following is repeated HG/T 3223 and JB/T 5438. 3.1 Pressurized pinch mixer pressurizedkneader The use of flip mixing chamber method of unloading the closed rubber (plastic) machine. Schematic diagram shown in Figure 1. [HG/T 3223-2000, definition 2.1.2] ......

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