Inspection methods and testing standards for bluetooth speakers

1. Observe the appearance of products

Shell without cracking, burr, deformation, scratch, shrinkage, stains. Shell gap fit well, no loose phenomenon, good stereoscopic property.

2,Observe metal accessories

Metal parts no oxidation, mildew, stains phenomenon, plug no loose, deformation, plug force is suitable, firm.

3, check the key and booth

The key pressure is suitable, the shell is not stuck, the socket is stable, the pressure is suitable, the insert memory card is not loose.

4,Check screen printing, lettering and dyeing

Shell screen printing clear, no typos. Highly consistent. Clear lettering without burrs, clean writing. Dye evenly do not fade, color sense comfortable.

5, integrity

The product gives a person the feeling whether the craft is good, high-grade, the appearance is good. Is the volume reasonable compared with similar products

There is no prompt sound or display screen prompt, the function is clear, do not see the manual can use the product immediately in fact the same kind of products do not have the function of the standard 10 meters about 2 meters constant pitch is very good, good, good, general, 5 levels of the loudest not obvious distortion, bad vibration is not obvious

Four Non-Product Factors That Influence Purchase Decisions

Have you ever paused to consider why your customers choose your products over the closest competitor? If you really think about it, what sets your products apart? In many respects, they’re exactly the same. In order to understand your business better, you must understand your target customers and why they are or aren’t choosing your products. There are product factors and non-product factors that affect the decision of customer. Product factors are directly related to the product itself. And non-product factors aren’t directly related to the product itself, but still influence a customer’s decision. Specifically, there are five non-product factors that commonly come into play.

Brand Name of Goods

Brand name and image have a great influence on customers’ purchase decision. That’s why it’s so important to come up with a good company name when launching a brand or product. Using the mop example, would you be more likely to purchase a mop sold by the brand name Pure and Clean Solutions or Products Ltd ? The first evokes strong imagery, and the latter is boring and non-descriptive, so most would choose the first.

Product Placement Is Critical

In the real retail environment, product layout is very important. Obviously, your product is easier for customers to see in the traffic area of store than in the corner of the bottom shelf. For the e-commerce enterprises, the product layout looks a little different. If you sell on amazon.com, the best placement is on the front page or sidebar. Obviously, you are more likely to get sales in a prominent front position.

Good Reputation

In this era, establishing a good reputation will attract more customers. Your customers’ comments can help you sell more or drive out business. If you can build a positive brand reputation in the market, you can influence customers’ purchase decisions more frequently. When customers see your products, they will choose yours over your competitors. In many cases, a good reputation can even make up for deficiencies in other areas.

Rational pricing

It is very important to price products reasonably according to their market positioning. It shows how sensitive your target market to price. In some industries, price is the primary non-product factor. For example, a customer buying a mop can be very sensitive of price. There are two mops have the similar quality, one mop is $18 and the other is $38, customers are likely to choose the cheaper one.

We all know that a product’s success depends on a multitude factors. But these four non-product factors are crucial and will directly affect customers’ choice. Once you can use them flexibly, you will get more customers.

Standard for inspection of finished products of electric ovens

I. Packing inspection

1.The packing case does not conform to the product model, the packing case is seriously damaged.

2.The shipping mark printed on the packing case is not in conformity with the order.

3. The attachment, qualification certificate, specification is missing or inconsistent with the product.

4.There are foreign bodies in the packing box or inverted products.

5.There is no factory address or name on the packing case, specification or housing.

6. Attachment, packing case or packing method does not meet the requirements of the order.

7. Factory date and quality labels are missing or mislabeled; Labels are obliquely pasted, rolled, and bubbled.

Ii. Appearance inspection

1. The machine shell is seriously cracked, deformed, damaged, detached or corroded.

2. The surface of the glass door is generally scratched, deformed, shed, corroded and burr.

3. Slight scratch, deformation, fall off, rust and burr on the surface of the glass door.

4. The seam is obviously not fit or uneven or large matching gap.

5. Loose or lack of fastening screws for panel assembly.

6. Nameplate, trademark, decoration missing, wrong, reverse, off.

7. Broken power cord.

8. Function keys or sockets are not marked, incorrectly marked, ambiguous and affect the use

Iii. Functional test

1. Any switch or knob is out of order or damaged.

2. The switch and knob are too loose, too tight and obviously deformed without failure.

3. Once in a while, the above disadvantages don’t work.

4. Switch and knob feel uncomfortable or have mechanical friction sound.

5. The knob comes off, but can be reset without tools.

6. Plug contact or plug failure.

7. Switch, knob has obvious dead point, jump.

8. The indicator light is not on, but it is functioning normally.

9. The heat pipe resistance is too high and the heat is bad.

10. Short circuit of hot wire to ground.

11. The indicator light is not on and has no function.

12. Instantaneous failure (failure that can recover automatically without applying external force or changing original stress after occurrence) occurs twice or more.

13. The fan speed is slow with current sound or the fan does not turn.

14.More than 100 m Ω 14. Grounding resistance test.

15. Pressure test AC1250V,5mA/1min alarm.

Power test

At rated voltage, the power is not within +5% or -10% of rated power

Other inspections

1. There is metal foreign body in the machine. 2. There are non-metallic foreign bodies in the machine.

Hardware pendant inspection

Hardware pendant inspection

1. Strip, round bar material (material: copper, iron, aluminum) inspection standards:

A. Whether there are dents on the surface of the strip and the round bar, and the deformation weld is smooth.

B. Tape measure, caliper, thickness gauge to measure the length, diameter and thickness of the tape, round bar.

C. Visually cast iron, copper, aluminum material, iron, copper, aluminum only sound the difference between hard and soft.

2. Inspection standards for electroplating:

The surface is free of scratches, black and white, yellowing, whitening, peeling, etc., with the standard as the sign. Testing method:

A. The visual surface does not meet the sample and drawing standards.

B. Appropriate force strikes the electroplating product to see if it falls off.

3. Dimension inspection standard:

Use tape measure, caliper, micrometer, thickness gauge to measure the size required by the customer or the drawing. The actual measurement result is to see if it is within the size and tolerance required by the customer or the drawing.

4.Salt spray test standards:

A. Brine Preparation

The concentration of brine used in the test is 5% by mass. Therefore, the mass (weight) ratio of salt to water is 5:95, that is, five parts of salt to ninety-five parts of water.
Pay attention to the drying of the salt when preparing, otherwise it will affect the accuracy of the mass fraction. Strict requirements must pay attention to the water quality and pH value, and pay attention to electronic weighing when preparing. Pay attention to the weight and accuracy of the container.

B. Testing

Put the product in the salt spray machine and observe it every two hours and make a record.

C. Inspection standards

Different surface treatments have different corrosion resistance properties. The products used in different places have different standards from different customers, and the specific requirements of the customer shall prevail.

China’s exhibition after wind and rain achievements

After entering the 21st century, China’s convention and exhibition industry ushered in many grand events, greatly exciting people.

On February 26, 2001, the inaugural conference of the boao forum for Asia was held in boao, hainan. This is the first international forum headquartered in China since the reform and opening up. The boao forum for Asia has become an international forum and institution on a par with the world economic forum in davos. General secretary xi jinping said that based on Asia and facing the world, the boao forum for Asia has played an important role in building consensus, promoting cooperation and building a community of Shared future in Asia.

In November 2001, China completed the negotiations on joining the wto. In the second year, in the national standard of classification of industries of national economy (GB/T 4754-2002), China established the small category of “conference and exhibition service industry” (code L7491) for the first time. (since October 1, 2017, “conference, exhibition and related services” has been upgraded from “small class” to “middle class”, with the industry code of L728.)

On May 14, 2017, the first “One Belt And One Road” international cooperation summit forum was held in Beijing. President xi jinping presided over many important events and delivered keynote speeches. The forum includes the opening ceremony, the round table summit and the high-level meeting. The list of outcomes includes policy communication, infrastructure connectivity, unimpeded trade, financial integration and people-to-people connectivity, 76 items and more than 270 items.

As one of China’s main diplomatic events, the forum has played a significant role in promoting the “One Belt And One Road” initiative and building a community with a Shared future for mankind. It is also a way for China to provide public services for world development through international conferences, demonstrating China’s important role as a responsible major country. On April 26, 2019, the second “One Belt And One Road” summit forum for international cooperation was held in Beijing, with more fruitful results.

The first China international import expo was held at the national convention and exhibition center (Shanghai) on November 5, 2018. This is a large-scale exhibition project personally planned, proposed and promoted by President xi jinping. It has been a great success with far-reaching impact.

“Magnificent 70 years, forge ahead in a new era”. How to summarize the development achievements and great progress of China’s exhibition industry in the past 70 years? Xi jinping, general secretary of September 20, 2016 for the g20 summit in hangzhou summary commendation work made important instructions: hangzhou summit the implementation of the “west lake scenery, jiangnan style, Chinese style, datong world” concept, to show the world the Chinese spirit, Chinese power, in the process of the group of 20 left a deep mark in China. On the occasion of celebrating the 70th anniversary of the founding of the People’s Republic of China, we feel very excited and proud to review the instructions of general secretary xi jinping. The great rejuvenation of China reflected by the development achievements of China’s convention and exhibition industry over the past 70 years is already on the paper.

What is FDA Certification?

FDA, the United States Food and drug administration, under the United States Department of health education and welfare, it is said to be the equivalent of China’s State Drug Administration, but in fact is not exact the same. To be exact, the United States of America FDA is equivalent to the health department of China (responsible for the approval of health food) and the State Drug Administration (responsible for the approval of the drug) two industry management agencies. It is responsible for the United States national drug, food, biological products, cosmetics, veterinary medicine, medical equipment and diagnostic supplies and other management and is committed to protecting, promoting and improving the health of the people, to ensure that the United States market sales of food, medicine, cosmetics and medical equipment for the human body’s safety, effectiveness. FDA under the drug Bureau, Food Bureau, Veterinary Bureau, the Department of health, biological products, medical equipment and diagnostic supplies Bureau and the National Toxicology Research Center, the regional work management agency, namely 6 Bureau (some of the publications also known as 6 centers), a center and a regional management agency. The United States Food and drug administration has a total of about 7500 people, FDA headquarters has 1143 people, of which the Drug Administration for 350 people. Distributed in Washington, D. C. and 157 cities. FDA approval of hundreds of new drugs approved by the company, the company has more than 9, which is more than 1.5 per year, which is a regular spot checks, as long as there are not in accordance with the regulations, will be expelled from the market.

Drug Administration (also known as the center for drug evaluation and Research) is responsible for the approval of the use of drugs, with 4 offices and a number of departments.

1. drug administration department. Under the medicine information, information system design, administrative management and budget, the 4 departments of medical libraries.
2 .Office of drug supervision. Next set of drug quality evaluation, drug labeling supervision, production and product quality, scientific research, regulations and other 7 departments.
3 .drug standards department which are commonly used in drug evaluation, drug listing and advertising.
4 .a review of the drug. Under the cardiovascular, renal medicine, anticancer drugs, nutrition, medicine, medical imaging surgery and dental medicine, gastrointestinal medicine and coagulant five departments.

Impact of the Belt and Road Initiative and Regional Trade Agreements on Chinese Traditional Clothing Exports

Impact of the Belt and Road Initiative and Regional Trade Agreements on Chinese Traditional Clothing Exports

As China ’s important strategy, China ’s “Belt and Road” strategy has been further promoted. At the same time, regional trade agreements have also had an important impact on China ’s industrial development. In China’s export economy, Chinese traditional clothing exports occupy a very important position.

1.The “Belt and Road” Strategy and Regional Trade Agreements
The “Belt and Road” is a great idea put forward by China and an important channel for China’s foreign economic and trade exchanges. Through the “Belt and Road” construction, the overall level of China’s economy can be improved, and supply-side structural reforms can be completed, which can adapt to the new normal of China’s economic development. The “Belt and Road” has new characteristics in the new situation, which is different from the traditional trade model. The “Belt and Road” strategy in the new period emphasizes the application of electronic information technology, especially in the field of business circulation and commercial exchange, and the use of modern electronic information technology to build The modern economic system realizes the electronic circulation of logistics, capital flow and information flow, and improves the efficiency of business communication and processing. As the basic rules for China’s trade development in the new era, regional trade agreements have had a profound impact on China’s traditional clothing export trade, and also brought new opportunities and challenges.

2.Impact of the “Belt and Road” and Regional Trade Agreements on Traditional Clothing Exports

1)The market has been deeply segmented
Within the framework of the “Belt and Road” strategy and regional trade agreements, the Chinese traditional clothing export consumer market is divided into different groups. In the traditional consumer market, the division of consumer groups is not obvious. Under the “Belt and Road” strategy and regional trade agreement system, the division of consumer groups is more professional and targeted, and many emerging points of consumption growth have emerged. And promoted the development of traditional clothing-related industries. The market demand is farther and richer, and through wireless connectivity between networks, potential consumers in different regions are connected together, forming an agglomeration and scale effect.

2)Higher market sensitivity
Under the Belt and Road Strategy and the regional trade agreement trading system, the behavior of traditional clothing foreign trade markets is becoming more and more perceptual. The traditional Chinese clothing export trade pattern is being broken, the resources are unlimited, consumers can access massive amounts of goods and information through the Internet, consumer behavior tends to be perceptual, the market is more sensitive, and during the transaction process, through the Internet Payment methods can also play a role in promoting consumption, and have a strong role in promoting the export of traditional clothing.

3)Industrial barriers are gradually disappearing
Under the trading environment of the Belt and Road Initiative and regional trade agreements, the barriers of the traditional clothing manufacturing industry are gradually disappearing. Many businesses have met the diversified needs of the market through crowdfunding and other methods. The market has also conducted in-depth exchanges with merchants through modern trading systems. Affects the production of goods. At the same time, the rapid development of the modern logistics industry has become a link between traditional clothing exports and the market. It plays a pivotal role in the transaction process. Market habits and opinions will also have a greater impact on upstream and downstream industries.

3.The new path of China’s traditional clothing export development under the new economic normal

1)Define the export management goals of the apparel industry
Under the framework of the Belt and Road Initiative and regional trade agreements, the traditional garment export industry must further clarify economic management goals. Through big data analysis, economic targets can be more accurately positioned and economic management efficiency can be improved. In the process of designing the economic management goals of traditional clothing exports, the use of modern technology can achieve multi-dimensional, multi-angle, and all-round evaluation, clarify economic management goals, integrate relevant resource elements, and realize the optimal allocation and comprehensive utilization of economic management resources. Based on this, we can give full play to the advantages of modern technology, further clarify the objectives of modern economic management, and improve the level and level of traditional clothing exports.

2)Establish and improve electronic information systems
For traditional clothing export enterprises, it is of vital importance to build and improve their own electronic information systems. With the advent of the Internet era, electronic information technology has begun to integrate with traditional industries. With the use of electronic information systems, standardized economic operation and management of garment export companies can be achieved. By integrating economic management information resources and using big data technology for effective analysis, it can provide scientific decision-making basis for economic management activities and clarify future development directions and management priorities. The use of modern information technology can promote the upgrading of traditional clothing industries, optimize business management processes, strengthen process control in economic management, minimize risks and uncertainties in economic management, achieve integration and theory of economic systems, and open up different sectors Connect with different economic factors, build a three-dimensional economic management system, optimize the management structure, standardize the management process, and achieve the overall improvement of the level of economic business management and the speed of information feedback.

Curlers inspection

Curlers inspection

1.Visual inspection

1.1 All plastic parts should be free from obvious phenomena such as sharp edges, shrinkage, silver wire, scratches, color mixing, water-intrusion, spots, breakage, melting shells, and bursting. Aluminum can not be installed with crooked, scratched, spotted, rough, damaged, poor fuel injection, deformation and different colors.

1.2 Check that the silk screen must not be printed incorrectly, missed, scratched, blurred, misplaced, or mismatched in color. The body screws should be free from missing, sweeping heads, sliding teeth, and wrong specifications. There must be no steps or clearances between the cold cover and the aluminum pass and the hairpin and the aluminum pass.

1.3 Push the switch not too loose or too tight.

2. Withstand voltage test

The voltage value of HI-POT machine refers to QA / QC specifications. The test parts are power cord, hoe, peripheral of switch engine, body screws, exposed metal parts. When testing, the switch engine should be at the highest level. The test time is 2 seconds each. No alarm sound during the test.

3. Output power test

3.1 During the test, the input voltage should be within the range of plus or minus 2% of the rated voltage. The power measured with a power meter must be within the QA / QC specifications of the corresponding model.

3.2 PCBA board function test, refer to the corresponding QA / QC specification requirements for detailed testing at each step.

4. Temperature test

Under the test condition of the rated voltage plus or minus 2%, when the curler is in the open or closed state, the temperature at which the heat transfer aluminum flux is stable is tested. The measured temperature must be within the QA / QC specification.

5. Internal machine inspection

5.1 First, check whether all materials used are correct according to the BOM.

5.2 Check whether the internal wiring and wiring are correct, whether the leads have been burned, peeled, and the metal wire core has been exposed, and whether the heat-shrinking shrinkage on the rotary terminal has been crushed, exposing the terminal, etc.

5.3 Check whether the leads are all fixed.

5.4 The insulating tape at the foot of the switch engine must be close to the switch engine. The insulating tape must cover the solder joints and the screws above the switch engine by more than 4mm.

5.5 Pull the lead at the solder joint by hand or tool. Pull the lead lightly and it cannot be pulled off or loosened.

5.6 There should be no false phenomena such as false welding, false welding, continuous welding, flying wire, etc. at the welding place. Whether the cable tie is in the correct position (should be as close as possible to the engine).

6. Special test

6.1 The forward torque of the screw is: outer diameter 2.8-3.0mm, the forward torque is 5kgf.cm.

6.2 Pad printing / screen printing position test: Pad printing, screen printing characters shall be wiped 15 times with 75% rubbing alcohol cotton cloth, the characters shall be clear and clear, and the surface of the characters shall be adhered with 3M adhesive paper. Repeat the character three times without discoloration.

7. Wire tension

8. Stand-alone drop test

Adjust the voltage to plus or minus 2% of the rated voltage, let the finished machine power on for 1 minute, and let it fall naturally three times from 90cm above the ground under the power-on state. Place the finished machine at 180cm and let it fall freely once.