GB/T 34669-2017 in English
SUPERSEDEDGrain and oil machinery-Roll
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Within 1 day
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《GB/T 34669-2017粮油机械 磨辊》由TC270（全国粮油标准化技术委员会）归口，TC270SC4（全国粮油标准化技术委员会粮油机械分会）执行，主管部门为国家粮食和物资储备局。
Introduction
National Standard of the People's Republic of China GB/T 34669—2017 Technical Requirements and Inspection Methods for Grinding Rollers of Grain and Oil Machinery
1. Scope and Applicability of the Standard
This standard specifies the terms and definitions, structure, model, technical requirements, test methods and inspection rules of grinding rollers, and is applicable to bimetallic centrifugal casting chilled alloy cast iron grinding rollers. Non-standard series of grinding rollers can refer to this standard.
2. Standard Framework Comparison
| Chapter Number | Content Overview | Main Clauses |
|---|---|---|
| 1 | Scope | Specifies the types and scope of grinding rollers to which the standard applies. |
| 2 | Normative References | Lists relevant national standards and industry standards as references. |
| 3 | Terms and Definitions | Specifies professional terms related to grinding rollers, such as thick-walled rollers, thin-walled rollers, etc. |
| 4 | Structure and Model | Specifies the classification and model compilation method of grinding rollers, and provides a series of specification tables. |
| 5 | Technical Requirements | Includes specific technical indicators such as material selection, processing quality, radial runout, and dynamic balance test. |
| 6 | Test Methods | Details the test methods and instrument requirements for each technical parameter. |
| 7 | Inspection Rules | Specifies the requirements and judgment criteria for factory inspection and type inspection. |
| 8 | Marking, Packaging, Transportation and Storage | Specifies the product marking content and packaging, transportation and storage requirements. |
3. Implementation Suggestions
In order to ensure that the manufacture and use of grinding rollers comply with GB/T 34669-2017 standard, the following measures are recommended:
- Material selection: Purchase raw materials in strict accordance with the chemical composition requirements to ensure that the mechanical properties of the gray layer and the white layer meet the standards.
- Processing technology: Use advanced casting technology and equipment to ensure that there are no defects such as cracks and pores on the surface of the roller body, and control the parameters of convexity and tooth angle.
- Testing link: Equip with necessary testing instruments, such as Shore hardness tester, dynamic balancing machine, etc., and conduct factory inspection and type inspection according to standard requirements.
- Training and records: Conduct standardized training for operators, establish a complete production record and inspection report system, and ensure that product quality is traceable.
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