After studying in IQC for two days, I transferred to qa and began to work and study in QA for two days. QA first off is called the first inspection of product quality, which is the first inspection of products after the first production process is completed. At this point, the product can not be put into storage, but it is no longer a pure raw material. Various raw materials are assembled into products that need QA inspection by machines on the production line, such as copper caps and ceramic tubes assembled into molded ceramic tube fuses, and copper caps and glass tubes assembled into molded glass tube fuses.
The contents of QA initial inspection probably include length, outside diameter, resistance, electrical characteristics, durability and so on. Measure the length and outer diameter with vernier caliper, and the measurement results are qualified within the standard range. The electrical characteristics are tested by T/C tester and LGZ equipment, and the measurement results are qualified within the standard range. For example, the electrical performance of 225XP series should be tested at 1.35 in and 2In, and the electrical performance of 505XP series should be tested at 1.5In, 2In and 3In, where 1.35 in means that at least two of the three fuses should be blown within 60 minutes. At the same time, when testing the electrical characteristics of ceramic tubes, special attention should be paid to the one-to-one correspondence of labels to avoid unnecessary mistakes. In addition, the electrical performance should also be selected according to the current range. For example, LGZ38 is suitable for the current range of 5600~39000mA. Finally, the durability test should be carried out in strict accordance with the test standards, including 4 hours and 6 hours.
Through two days' study of QA initial inspection, on the basis of learning basic experimental equipment and under the careful guidance of QA staff, I can gradually independently carry out the electrical characteristics of some types of fuses. Although I will be a little timid and uneasy before contacting large-scale experimental equipment, my willingness to learn and do and my rigorous and serious style are enough to support me to continue to study hard!
Although the internship period has just passed a week, as a student, I have had a lot of feelings and experiences.
Schools and units are two completely different collectives. The one-week internship has gradually integrated me into the daily work of QA department, and the friendly and harmonious working atmosphere allows everyone to devote themselves to their work. As an intern who just came to Tellus Group, I have become familiar with the working environment and visited the sample room with everyone's help, and I have a preliminary understanding and understanding of the work and responsibilities of QA. In the first week of coming to the company, I spent most of my time reading and studying materials, which made me understand the daily workflow and tasks of QA more quickly and understand some basic knowledge of QA department. Although these basic knowledge were involved in my previous school study, they were comprehensive, which made me ready for future training courses. Some information about tools opened my eyes. All the tools are classified and have different uses. The detailed indicators let me know the rigorous attitude I need as a QA.
For the next internship training, I am going to learn more systematic professional knowledge, hoping to improve my ability through practice. Thank the company for giving me this internship opportunity, which benefited me a lot.
Qa Work Experience Summary Report Part III Quality Assurance QA Responsibilities:
1. Raw material QA personnel take 30% samples of all raw materials that enter the company, and conduct moisture and sensory inspection first, and then notify the purchasing department to weigh and unload after passing the inspection.
2. Implement the quality standards for raw material procurement stipulated by the company.
3. 100% sampling when unloading.
4. After unloading, send the sample to QC for testing.
5. Finished product QA personnel conduct sampling inspection on the produced finished feed, and the sensory quality (color, smell, hardness, granules and powder) is qualified.
6. Sampling and testing the moisture content of each batch of finished products produced every day, and sending them to the laboratory for testing by QC personnel.
A, raw material receiving flow chart:
Second, the provisions of the sampling of raw materials
1. The sampling of samples shall be random, comprehensive and representative, and the error shall be minimized;
2. The number of samples taken meets the requirements, and the samples shall be kept for inspection;
3. Used for corn, wheat and other raw materials. Sensory inspection is adopted in the sampling process, and any quality change found should be handled immediately.
(a), 30% sampling regulations
1, solid raw materials
Random sampling shall be carried out around the vehicle, and the sampling point shall not be less than 30% of the packaging bag, and the sample weight shall meet the requirements.
2. Liquid raw materials
Liquid raw materials should be sampled with a liquid sampler, and the sampling quantity depends on the specific situation.
3. Preventive measures
The collected samples are sent to the laboratory by the sampler himself and analyzed according to the regulations.
(2), 100% sampling regulations
1, 100% sampling shall be carried out during unloading, and sampling personnel shall always be present and carefully sample during unloading;
2. Pay attention to the quality status at any time when sampling. If you find any deterioration, please pick it out and return it.
3. The sampling amount of each batch of raw materials should be 1-2 kg, a small amount of raw materials should be no less than 500g, and the sampling amount of additives should be100 g-250 g;
4. The samples obtained by sampling shall be sent to the laboratory by the sampler together with the raw material receiving report, and analyzed according to the regulations. The test result of 100% sample is the final result of this batch of raw materials;
5. 100% test result is unqualified and returned. If some items do not meet the quality standards, but the company can accept them, they should be reduced in price or used at a reduced price as appropriate. Otherwise, it will be returned.
Third, raw material inspection items
1, visual inspection
(1) smell: whether it is fresh and normal, and whether it has musty smell, peculiar smell and foul smell.
(2) Color: Whether it is normal or burnt.
(3) Shape: whether it is normal, caked and the particle size meets the requirements.
(4) No pollution
(5) Others: fever and moisture absorption.
2. Microscopic examination and spot test: whether it is doped or not.
3. Physical and chemical indicators: moisture, impurities, mildew, imperfect grains, broken grains of Aspergillus flavus, moth-eaten grains, bulk density, etc.
4. Nutritional indicators: crude protein, calcium, phosphorus, fat, etc.
Three, raw material sampling method
(A), feed raw material sampling attention problems
1, take enough samples from the whole batch of raw materials.
2 sampling angle, location and quantity should be able to represent the whole batch of raw materials.
3. Stir the samples evenly, so that the final analysis sample can represent all samples.
(2) Sampling method of feed raw materials
1. Sampling of bagged raw materials: at least 500g of bulk raw materials packed in woven bags or sacks.
2. Sampling of a large number of particles, bulk powder or vehicle-borne raw materials: according to different batch numbers, depths, levels and locations, point sampling is carried out respectively, and the general sampling number is less than 10 point.
3. Sampling of liquid raw materials: sample the liquid barrel with a straw.
(3) Preservation of feed raw material samples
After the sample is prepared, put it in a sample bag and store it in a sample cabinet. The sample bag shall be labeled with the sample name and sampling date, and all samples shall be registered after sampling.
(4), incoming inspection steps
1, check the appearance, color and shape of raw materials;
Step 2 check for bugs
3, check for caking, mildew, etc. ;
4, check whether fever or local fever, abnormal body temperature;
5. Determine whether there is any abnormal smell, such as fever, peculiar smell and musty smell;
6, microscopic examination, check whether there are stimulants;
7. Determine physical indicators, such as moisture, impurities, mildew, defects and bulk density.
8. Test the nutrition index (CP. Fat, fiber, calcium, phosphorus, etc. ).
9, five senses identification method: eyes, nose, mouth, ears, touch (hand).
10, microscopic identification method.
1 1. Chemical identification methods: qualitative identification method and quantitative identification method (QC).
(5) Acceptance criteria of raw materials and inspection of common dopants
1. appearance: whether it is the same as the appearance of the same raw material purchased before, or whether it is consistent with the appearance described in the standard for this raw material.
2. Impurities: Except for some impurities that are inevitable in normal raw material production, raw materials should not contain other impurities.
3. Handle: cool, no abnormal flow phenomenon when dumping.
4. Smell: It should have the typical smell unique to raw materials. If there is peculiar smell, such as bad smell and burnt smell, it means that the raw materials are polluted or the quality is affected.
5. Labeling: All bagged raw materials should be labeled, indicating the product name, manufacturer and production date.
(6), raw material quality control skills
1. The quality control of raw materials should pass 30% sampling before unloading to determine whether the raw materials can be used. If you find mildew, odor, excessive live insects, etc. , raw materials QA can be returned directly, and inform the supervisor in time.
2, 30% sampling must carry sampler, transparent tasteless plastic sample bag, sample labels, markers and other tools. 30% sampling must be comprehensive and representative.
3. For small raw materials (amino acids, whey powder, choline chloride, etc. ), name, place of origin, production date, production approval number, etc. It can be recorded that samples will be taken when unloading in the warehouse, and the holes left by sampling will be sealed with tape to prevent moisture absorption and deterioration. When sampling, check the appearance quality (smell, color, mildew, burning, caking, doping, insect source, etc.). ) Prevent interfering substances when smoking.
4. If there is no abnormality in raw material sampling, mix the sampled products, record the car number, supplier and sampling time on the sample label, and then return to the laboratory for testing; If some of the raw materials in the packaging of a truck are abnormal, then the abnormal raw materials should be selected when unloading. If the proportion of abnormal raw materials is large, the original car will be returned. If there are few abnormal raw materials, directly return the selected raw materials or carry out other treatment (when unloading, 100% sampling is mainly aimed at the raw materials in the packaging bag not being sampled by 30%, and after careful sensory inspection, 100% sampling is found. ).
5. Raw materials that arrive at the company in rainy days without tarpaulin will not be sampled and returned; When sampling the raw materials covered with tarpaulin, we should pay attention to whether the raw materials are wet or not, pick out the wet raw materials and return them directly, or compare them with good raw materials to reduce losses.
(seven), the processing method of raw materials that do not meet the requirements.
1. Although some raw materials do not meet the specified standards, contact the department head immediately to determine the treatment plan.
2. Contact the buyer who buys raw materials and tell the buyer the problems and treatment methods of raw materials.
3. Are there many live insects and the mildew rate high? 3% of energy raw materials (YC. Wheat) to be rejected; Protein raw materials whose protein value is lower than the standard by more than one point shall be rejected; Removing dried vegetables with water content above 12.5%; Rice bran protein is lower than 1 1.5, and the fiber is high, so it is rejected; When the temperature is higher than 40℃, cottonseed meal and rapeseed meal are returned (except those used at that time).
(8), raw material storage
1, all kinds of raw materials are stored in the warehouse as far as possible. But those powdery, expensive and perishable raw materials must be stored in the warehouse, which is safer, such as fish meal, corn gluten meal, wheat bran, stone powder, salt, whey powder, lysine, choline chloride and additives.
2. When storing raw materials, pay attention to the temperature and ventilation of raw materials, and check that the temperature deteriorates at least 1 time/week. If the raw material temperature rises, immediately turn over the pile and inform the blanking personnel in advance to use it.
3. Silos are generally bulk corn, wheat and other raw materials. The moisture content of corn does not exceed 14%, and there are no other quality problems, so it can be put into storage. But check the quantity and quality of corn in the silo every month, and pay attention to ventilation and insect prevention.
4, blanking should be based on? First in first out? , special circumstances can be used first or in proportion. At the same time, the arrival time or time is not much different, so try to use the outer stack first. The raw materials arranged should be consistent with the formula. During blanking, it is necessary to supervise and inspect the quality of raw materials, especially whether perishable raw materials such as wheat bran are heated or deteriorated. Unqualified materials should be selected in time and reported to the department head.
Chapter III Feed Production
1. Quality management of finished feed packaging room
1. Before starting packaging, samples should be taken to check whether the quality of semi-finished products is normal, and packaging can only be carried out after they are qualified. The main inspection contents include: color, smell, hardness, particle size, etc.
2. When starting packaging, pay attention to check the head and tail of the material. If there are too many flowers or powder, stop packaging and inform the central control and granulator to find out the reason in time, and then package after the quality is normal.
3. In the process of packaging, samples should be taken for inspection in time. If the quality is abnormal, such as discoloration, fever, high temperature, high powder rate, low hardness, large particles, foreign bodies, etc., the packaging should be stopped immediately, and the central control and granulator should be notified to find out the reasons in time, and the packaging should be carried out after the quality is normal.
4. Check whether the feed granularity is normal, and whether the hardness and powder rate meet the standards.
5. The packaging weight (not less than 5%) should be checked randomly when packaging, and the packaging standard is 40kg? 0. 1kg etc.
6. When packaging, check whether the packaging bag and label are consistent with the product name, and at the same time, timely check whether there is any damage, missing printing, misprint and pollution.
7. Unqualified packaging bags cannot be used for packaging (gun bags, which have been polluted);
8. When packing, check whether the label indicates the production date. The label should be evenly sewn in the middle of the seam on the front of the packaging bag. The top of the label is 5- 10mm away from the mouth of the packaging bag. The production date and shelf life should be exposed above the suture, and the needle spacing should be 6-8 mm.