Time：2019-10-30| Author：Admin
I. Classification of raw materials and their supplier evaluation and selection
1. Production of raw materials should be classified management, highlighting key points
Hardware companies need a wide variety of raw materials, but different raw materials have different effects on the quality of production products. In order to facilitate the key control of procurement quality, raw materials should be classified and managed according to the degree of influence of raw materials on product quality. Generally divided into three categories:
Class A raw materials: refers to the raw materials used in the production and use process, which may have direct and significant impact on the production quality of the products (such as direct impact on the key functions and performance of the products).
Class B raw materials: refers to the production and use process, which may bring indirect or more important influence on the quality of raw materials.
Class C raw materials: Refers to general auxiliary parts, which affect general or minor raw materials.
2. Evaluation of raw material suppliers
Practice has shown that the quality of raw materials purchased is stable, depending largely on the quality management level of suppliers. Therefore, it is necessary to evaluate the quality assurance capabilities of various raw material suppliers before purchasing.
(1) Evaluation of supplier of Class A raw materials
(2) Evaluation of suppliers of B and C raw materials.
Generally, it is not a field visit, mainly to consult the information provided by the supplier, to provide raw materials samples for testing and testing, and to analyze the results of regular analysis of raw material quality, etc., to achieve supplier evaluation. It: For the evaluation of the B-type raw material suppliers, the procurement department proposes the “B-type raw material supplier evaluation list” to provide information on the B-type suppliers, or the quality, service, price and other information and information of the previous B-type raw materials inspection and use. The relevant departments of technology, manufacturing, quality, finance, etc. will be signed (reviewed) and reported to the senior management for approval; for the evaluation of the capacity of the C-type raw material suppliers, the procurement department will propose the “C-type supplier evaluation list”, by quality, The financial and other signings and the purchasing department manager will sign and execute.
3. Selection and determination of raw material suppliers
Second, strict raw materials into the factory control
Purchasing raw materials from qualified suppliers is not all that can be done. Qualified suppliers only indicate that the supplier has the basic conditions for providing relatively stable quality raw materials. Whether the actual quantity of raw materials received is insufficient, and whether the quality can meet the production requirements is not certain. Therefore, before entering the factory, the raw materials should be strictly controlled according to the following requirements.
1. There is no need to check the acceptance of raw materials. It should be checked and accepted according to the raw material procurement contract, the accompanying goods "certificate", "material book" and other quality certification materials; for individual low-value consumables, it is difficult to issue the corresponding "certification certificate" and "material book", and samples must be provided in advance. For raw materials without "certification certificate" and "material book", acceptance and storage should be refused. 2. The raw materials to be inspected can be put into storage after passing the inspection. Before the raw materials need to be inspected, the purchasing department should fill in the “Public Inspection Record” and submit it to the professional inspection department. After the professional inspection department issues the qualified inspection report, it will be submitted to the warehouse with the qualified report. If the inspection is unqualified, the “Not Qualified Product Record” form should be completed, and the quality information feedback should be filled in one-time quality department's feedback, and the purchasing department should be required to apply for the return and exchange procedures.
3. Establish the acceptance record after the income bank is verified in time. The custodian shall establish the “Record Acceptance Record for Raw Materials”, including: name, specification, model number of the raw material, manufacturer, arrival time, quantity of arrival, qualified quantity, acceptance time and corresponding quality certificate; and according to the material category, name, The specifications are separately posted for the future inquiry and confirmation.
4. Acceptance of raw materials for emergency or quality certification materials. For urgent use or quality certification materials, all raw materials need to be filled in. The quality feedback should be filled in one-way quality supervision department's feedback, and the quality competent department urges the procurement department to fail the quality certification materials, and the raw materials are put into the warehouse acceptance procedure and temporarily stored. If the area is not qualified, the inspection and acceptance procedures can be completed.
5. Appearance quality inspection of materials should check whether the outer packaging materials of the raw materials are damaged or defective, whether the packaging materials are corroded or leaked, and the name, grade, specification and model of the unpacking inspection products, etc., and the product qualification certificate and packing list acceptance.
6. For the quality problem that can only be exposed during the installation and use phase, the raw material custodian should establish a quality tracking card, maintain communication with the production and use unit, master the first-hand information, and promptly report the problem, and notify the supply department to handle the problem. .
Third, strict quality control of raw materials
Prevent the deterioration of raw materials in the warehouse, and continue the control of raw material procurement process. The key is to do the following management work.
1. Management of storage raw materials. For stock raw materials, especially Class A raw materials, inspections should be carried out frequently to achieve “ten no”, ie no moisture, no corrosion, no rust, no mildew, no rotten, no change, no bad, no freezing, no damage, no shackles. .
2. Treasury environmental management. The shelves and articles in the warehouse should be placed reasonably, the passages are smooth, the doors and windows are not damaged, and the “three nets” (ground, doors and windows, shelves) are provided, and there are no sundries, garbage and dust.
3. Warehouse raw material stacking and covering. Stacking coverage also ensures that the library has an important aspect of raw material quality. Stock raw materials must be properly stacked according to their performance and storage requirements. Special consideration is given to the performance of Class A raw materials, the quality of packaging, and the ground conditions of warehouses. Appropriate palletizing methods are adopted to achieve flood control and moisture prevention.
4. Raw material inspection. Raw materials enter the warehouse, acceptance, and palletizing. At the same time, maintenance control should be carried out according to the classification of raw materials and maintenance requirements, that is, regular or regular inspections should be carried out to eliminate and deal with hidden dangers in time.
5. Raw material out of the warehouse management. The principle of “first in, first out” should be observed, especially for long storage period, large cargo piles, and difficulty in inspecting raw materials for attention. It is necessary to timely release such raw materials. At the same time, the behavior of the warehousing process is regulated to avoid damage to the quality of raw materials during the handling process.
Fourth, regular analysis of raw material procurement quality
Regular analysis of the quality of raw material procurement, many hardware mold companies are easy to ignore, but very important links. Regular analysis of the quality of raw material procurement can reveal whether there is a regularity in the quality of raw materials supplied by suppliers, and also provide important information and even basis for suppliers to select and adjust after the quality control of the next production process.
The quality of raw material procurement is regularly analyzed. Class A raw materials should be taken once a month; Class B raw materials should be taken once every six months; Class C raw materials should be taken once a year. The main contents of the analysis are: statistical analysis of acceptance results of raw materials trials and tests; on-time delivery and delivery quantity of suppliers; handling and rectification when supply quality is abnormal.
In short, metal mold companies should not only pay attention to the production process, pay attention to efficiency, but also pay attention to the quality of raw material procurement. We must do a good job in sourcing raw material quality management, strengthen the quality control of the procurement process, and have a solid foundation and reliable guarantee for product quality.
Follow Us
+86-0750-3411688
Online Service
E-mail