Template of rectification report on enterprise product quality problems (two pieces)

product quality problem rectification report 1

relevant departments of the company:

in view of the product quality defects proposed by various host manufacturers in August and reflected in the monthly report of the sales department, it is concluded that most of the products produced and supplied by our company have the following quality defects: product color difference, color masterbatch, burr or uneven trimming, deformation, white top, weld marks, shrinkage marks, oil stains, impurities, no film coating and uneven spraying.

in order to ensure that all processes that have an impact on the quality of injection molding and spraying products operate according to the specifications, and to ensure that these inspections are under control. To ensure that the manufacturing process of products meets the needs of customers, our department now standardizes its responsibilities and puts forward the following rectification measures:

1. Responsibilities

The quality supervisor of the technical department is responsible for the inspection and supervision of injection raw materials, in-process products and finished products, and timely feedback the quality situation to the production department. The inspection should be responsible for the product quality control in the injection process according to the product operation instructions or corresponding process documents.

the injection molding, extrusion, spray coating and other products on duty shall be thoroughly inspected before storage. If there are any questions or disputes during inspection, the quality supervisor or department leader shall coordinate and handle them, and report them to the relevant responsible leaders of the company.

2, the implementation of the process;

during the production and operation of injection molding, extrusion and spraying, the operators should do a good job of self-inspection, and the Technical Department should do a good job of sealing samples for the first inspection of the products produced before starting, and fill in the First Inspection Record Sheet. The inspectors should also do a good job of patrolling and sampling the products in production, and fill in the Inspection Record Sheet. If the operators find unqualified products during the inspection and report them to the shift leader, they should promptly ask the operators on duty to rework them. Inspection control of products inspected by inspectors shall be judged and implemented according to the requirements of Inspection Guide for Injection Molded Parts and Sprayed Parts.

3. Environmental control in the process

Finished products, semi-finished products, qualified products and unqualified products of injection-molded parts and spray-painted parts should be placed neatly in the specified areas and marked according to regulations, and the inspector has the right to control and coordinate the process.

4. Quality control before warehousing

Before warehousing, the inspector should confirm whether the products in warehousing are qualified, and the qualified products should be stamped with the inspection stamp on the product certificate. And do (sampling warehousing records) injection molding, spraying (product warehousing staff) should be based on the product certificate stamped with the inspection stamp before warehousing, products without inspection stamp identification are not warehousing. If the unqualified products are confirmed before warehousing, the parties concerned shall be notified in time for rework. If the products cannot be reworked in time due to inability to rework or other reasons, the re-inspector shall mark the unqualified products, fill in the (Rework Record Sheet) and report it to the relevant responsible person for coordination. The warehouse shall well divide the product areas, and manage them according to the requirements of the relevant Regulations on Warehouse Management, and verify and accept the quantity of products put into storage. The products without inspection stamp on the product certificate shall be rejected, and the products without certificates and chapters shall not be accepted.

5. Process improvement

Quality management personnel should correct the problems in time, analyze and find out the improvement methods. When the production conditions of injection molding, spraying and other production departments change (such as changes in materials, facilities and personnel, etc.), quality department inspectors should reconfirm the above processes and take measures to ensure that they respond to the changes that affect the process capacity and

. Process measurement and monitoring is an important means and method to supervise and control quality. The purpose of self-inspection by operators and inspection by inspectors is to supervise and control the quality and process effect in the production process, and corresponding inspection records need to be filled in.

6. Product quality requirements for injection-molded parts and spray-painted parts:

Cleanliness requirements: the surface of the product is bright and clean, free from dirt and oil stains. The surface parting surface is smooth, the surface is dark, there is no bump, orange peel, and the visible surface is free of impurities. Trim neatly, without jagged edges, trim width ≤.5mm, trim the sprue neatly, the white print is not particularly obvious, and burrs are not allowed everywhere on the assembly visual surface. The color shall be the same as that of the color swatch and the sealed sample parts, and those without sealed sample parts shall conform to the color standard marked in the drawings, and there is no obvious color difference in the complete set of parts by visual inspection; The overall color is uniform, and the linear part is uniform in thickness; There are no wrinkles, bubbles and burrs that obviously affect the appearance. The diameter of each point of the impurity whose directly exposed surface is inconsistent with the paint color should be less than or equal to .3 mm. Impurities with a diameter of less than or equal to .3mm on the visible surface of the front of a single plastic spraying part shall not exceed 5 points. Under natural light (not direct sunlight), the surface of plastic sprayed parts is not exposed, and there is no obvious exposure at handles and corners. The surface shall not be scratched or scratched. Paint piling, orange peel and hanging can't appear on the surface and edge. Pinhole-like cavities and impurities are not allowed on the cross section. Color: the surface color is uniform, which should be consistent with the standard color swatch or sample seal.

Side A: the surface visible in normal product operation. Such as: the top cover, front end and interface of the product

b surface: the surface that is not often visible in normal product operation. For example, the side and bottom of the product

c plane: refers to the non-exposed surface of the product structure. For example, the inner surface of the product and the structural parts of the inner surface, the structural dimensions, the material performance and quality requirements, and the key matching dimensions should meet the requirements of the drawing < P > and the size requirements of the sample sealing parts. Properties of spraying materials; The main routine testing properties are: coating adhesion, coating alcohol resistance, coating hardness and adhesion strength. Products from manufacturers designated by Okay Company must be used. If the manufacturer is changed, it must be confirmed by relevant departments of Okay Company before replacement. Non-toxic paint is required for spraying materials, and relevant supporting documents provided by the Environmental Protection Bureau are required. The following other properties are the type test items: coating thickness, coating glossiness, coating flexibility, coating impact strength, coating chemical resistance, coating water resistance, coating wet and heat resistance, coating gasoline resistance, coating weatherability, hot water resistance test, coating cold and hot cyclic punching

coating hardness: the coating hardness is required to be over 1h. According to gb/t 6739 "Pencil Determination Method for Hardness of Paint Film", five strokes and no more than two strokes are qualified, and the end of the pencil needs to be ground flat every time; When testing each sprayed part, five lines should be drawn evenly as far as possible, such as the front panel of mobile air conditioner: one line should be drawn on the front, left and right sides, and two ends of the top; Split machine face frame: front, left and right sides, and back ends; Mitsubishi brand pencils imported from Japan are used as testing tools for coating hardness, and qhq-a scratch hardness tester for coated pencils (commonly known as trolley) is used as testing instruments.

coating adhesion: test according to gb/t9286. After standing at room temperature for 16 hours, the coating adhesion is required to be no more than grade by the grid method. Spacing with a scriber is 1mm, and the blade is always perpendicular to the surface of the sample during the scribing process, and the force is always uniform, which shall be subject to cutting the coated substrate. Adhesion strength: After standing at room temperature for 16h, stick a special 3m non-transfer adhesive tape on the coating surface for 2h, and then peel it off at a speed of 1~2mm/s in the right angle direction, without shedding. Alcohol resistance of paint film: stick cotton cloth soaked with alcohol on the surface of paint film respectively, and rub the paint film with cotton cloth soaked with pure alcohol for 1 minutes for 5 times (with a load of 15g). The paint film surface has no discoloration, peeling, exposure and other phenomena, and the product weight requirements meet the weight specified by the sales department and technical department. Therefore, the allowable deviation of product weight is 5% between 5g and 1ggg g. The deviation of products below 5g is allowed to be 3% (for injection-molded products)

7. Marking, packaging, transportation and storage marks require quality. The packaging of the parts should be affixed with a qualified marking card, and the name, model, production date, manufacturer's name and production batch number of the parts should be marked.

packaging: the parts shall be packaged as required (including inner packaging), and reliable measures such as anti-extrusion and scraping shall be taken for the packaging of the parts. Multi-model products are not allowed to be in the same box, and good measures should be taken to prevent mutual collision. Handling and transportation (mainly plastic bags, bubble bags, packing boxes, pe protective films, etc.): It should be avoided to be directly affected by rain, snow, exposure and various pollution during handling and transportation. When loading and unloading, excessive force should be avoided, and the parts should be handled with care. During transportation, the stacking of parts should not exceed 5 layers, and tools that damage the quality of products should not be used.

Inspection steps:

1. Confirm the sealing of the first sample;

2. Patrol inspection;

3. Re-inspection;

4. Sampling inspection in and out of the warehouse.

report on rectification of product quality problems 2

1. On the turbidity and drug precipitation of herbal tea products

1) On the turbidity and deterioration of herbal tea

a) Strengthen the control of uht sterilization temperature.

b) According to the current structure of the filling machine, and many experiments show that if the filling machine stops for more than 1 minute, the temperature in the center of the tank will drop by 2 ~ 3℃. Therefore, if the machine stops for more than 1 minute, the bottle will be hung for more than 3 seconds before filling, and the production can be carried out under the cover only if the temperature in the center of the tank meets the control requirements through quality control.

c) Strengthen the sanitary control of clean rooms and the sanitary control of personnel entering and leaving. According to the tracking of product quality problems, the quality problems of products produced by personnel during the shift change and meal time are relatively high, and the control is relatively strengthened; At present, there is 8℃ hot water in the bottle mouth of every company, which will lead to serious condensation on the ceiling of clean room, resulting in more spores and microorganisms on the ceiling. Do disinfection once an hour.

d) At present, the control of bottle mouth residue is strengthened, so the pressure of washing bottle mouth water is higher, and some washing water must enter the product, so the microbial control of ro water is strengthened.

e) Strengthen the cleaning and recycling control of recycled bottles in the production process to ensure that the microorganism exceeds the standard, which leads to the product quality

f) Strengthen the control of products before bottle dumping to ensure that all products are cooled after bottle dumping.

g) Strengthen the control of residual chlorine in bottle washing water and lid washing water to ensure the stability of residual chlorine.

(1). excellent product quality slogan of the company (2). slogan of strengthening enterprise product quality (3). slogan of product quality publicity (4). sentence making on product quality, Make sentences with product quality (5). What do you major in electronic product quality inspection? (6). What do you major in agricultural product processing and quality inspection? (7). University ranking of agricultural product processing and quality inspection in China in 222 () (8). University ranking of electronic product quality inspection in China in 222 () (9) University of electronic product quality inspection ranks in the national ranking in 222 (1). Introduction of agricultural product quality inspection specialty

2. Bottle mouth residue of milk products

1) At present, the hotline strengthens the control of filling level, and the effect is good.

2) The cold line strengthens the liquid level control of the filling machine and the capacity control of the bottle blowing machine.

3. Fat floats up

1) It is recommended to add nitrogen to the aseptic line to ensure that there is no air in the bottle mouth of the product.

4. Frozen problem of eight-treasure porridge

1) The weight of agricultural and sideline products per can of the product is controlled at about 54 ~ 58g. To ensure that the solids in the tank and the products have problems after freezing.

2) Adjust the sterilization formula of the product to ensure that starch will not precipitate due to over sterilization. ;