1 Scope
This part of GB/T 90 specifies the requirements that fastener manufacturers and distributors should follow in the quality assurance system. The purpose of these requirements is to reduce or prevent the appearance of substandard fastener products so that the specified characteristics are close to zero defect quality goals.
This section describes the requirements from the receipt of raw materials, through the manufacturing process to delivery to the distributor or user (assembler).
2. Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest version (including all amendments) applies to this document.
GB/T90.1-2002 fasteners acceptance inspection (idt ISO 3269:2000)
GB/T3098.17-2000 Fasteners - Preload test for hydrogen embrittlement inspection - Parallel bearing surface method (idt ISO 15330:1999)
GB/T19000-2008 Quality Management System Foundation and Terminology (ISO 9000, IDT)
3. Terms and Definitions
This standard uses the following terms and definitions
3.1 Quality Planning advanced quality planning
Part of quality management (in terms of quality and coordination of the control of the organization's activities) is devoted to the establishment of quality objectives (pursuant for quality purposes) and stipulates the necessary operational processes (translating inputs into outputs that are interrelated or interacting Group activities) and related resources to achieve quality objectives.
Note: The preparation of a quality plan (a project, product, process or contract to be determined, the document specifying who and when to use which procedures and related resources) may be part of the quality plan.
3.2 reform alter
Any process that alters the geometry, mechanical properties, or operating characteristics of the fastener after the original manufacturing process.
3.3 process capability index value
The Cpk value is a measure of process capability. It is related to the process average and upper and lower limits and the standard deviation of the characteristic values for a feature with a normal distribution law.
3.4 customer customer
The organization or individual that receives the product.
Note: Customers can be users or distributors.
3.5 Mixed commingling
Different types of fasteners of the same type are produced in the same package.
3.6 Control Plan control plan
Describe the manufacturing process of fasteners to determine the control points that provide control and minimize product fluctuations in the production process.
3.7 Defect defect
The requirements related to the intended or prescribed use have not been met.
Note: When there is a defect, the fastener will not be able to complete the intended or intended use (GB/T 19000).
3.8 Distributors (Wholesalers) distributor(stockist)
There are three types of institutions or individuals who purchase fasteners and sell them to other organizations or individuals.
3.8.1 Remanufactured dealers waste distributor
Distributors who need to restructure fasteners before resale.
3.8.2 Reseller distributor pass-through distributor
Resellers that resell the original manufacturer's packaging without resealing or restructuring.
3.8.3 Change packaging distributor repackaging distributor
Resellers that only repackage fasteners prior to resale.
3.9 Fastener Features
Fastener size, mechanical properties, or other performance characteristics.
3.10 Fastener quality assurance system fasterner quality assuran
It is often combined with a fastener manufacturing system such as a written quality control plan that includes prototype development, initial products, and end products. It includes quality planning (3.1), continuous improvement, defect prevention, and real-time control of fastener size, mechanical properties, and other performance characteristics.
Batch 3.11 lot contamination
A fastener production batch was mixed with different fasteners or foreign substances and foreign products.
3.12 Manufacturer manufacturer
The organization that purchases raw materials and transforms them into final fastener products.
3.13 production lot manufacturing lot
Products of the same mark (including product grades, performance grades, and specifications) made from bar, wire, wire, or plate of the same furnace, using the same or similar processes and undergoing the same heat treatment and/or plating throughout the continuous cycle The number of fasteners covering the process (if needed).
Note 1: The same heat treatment or plating process is:
- For continuous production, the main is the same heat treatment cycle without any change;
- For discontinuous production, the main turbidity uses the same heat treatment cycle for the same, adjacent manufacturing lot.
Note 2: From a technical point of view, a production lot can be divided into several manufacturing lots and then merged into the same production lot (GB/T 3098.17).
3.14 Production lot number manufacturing lot number
The unique number given by the manufacturer, through which the complete production process of the finished product, as well as the heat number of the raw material, can be traced completely.
3.15 Failed non-conformity
Not meet the requirements.
3.16 Fail Fasteners non-conforming fasterner
One or more failed fasteners.
3.17 Non-conforming parts per million (ppm) per million pieces (ppm)
The number of unqualified fasteners per million items in a completed production lot.
3.18 Product Continual Improvement
While improving productivity, product quality, and customer satisfaction, there are certain procedures and rules for reducing product quality fluctuations, consumption, and inspection frequency.
3.19 Specified Product Characteristics sclcctcd product charactcristic
A user-specified feature that is critical to the assembly and/or function of the fastener.
3.20 suplier
Machinery or personal offering products
Note: The supplier can be a manufacturer or distributor (GB/T 19000)
3.21 traceability number trace number
The alphanumeric code used by the dealer to identify the original manufacturer and the production lot number.
3.22 traceability of fasteners traceability of fasteners
Through its identification records, it confirms or confirms the production history of a certain fastener product, and establishes its raw material delivery number, processing and manufacturing process number, and raw material furnace number.
3.23 User user
Institutions or individuals who purchase or otherwise obtain fastener products and use the product for the purpose of assembly, inspection, or repair.
3.24 Zero defect conception
The establishment of a quality goal is a conception of products that do not meet the intended or intended use within a given batch of fasteners.
4. Customer provided information
Customers should refer to this section when ordering.
The order should indicate the selected product characteristics and, if necessary, consider the intended use or a reasonably foreseeable use and results.