Quality inspection solutions for automotive fasteners

Quality inspection solutions for automotive fasteners

Although fasteners are small, their role must be addressed. If you want to analyze the role of fasteners, this is not only part of the problem but also the whole and part of the relationship between the philosophical issues. As we all know, an independent screw, if you do not use it, can only be placed aside to be ignored, but for airplanes flying in the sky or on the ground running cars, trains, etc., screws are indispensable. Once the screws are loose or lost, and then the precision of the machine can not operate normally and even cause tragedy. Undeniably, due to the tragedy caused by the screws, the person in charge of the machine can not be blamed, but to a certain extent, it is closely related to the quality of the screws themselves.

Bolts in cars have many applications, from wheel bolts, engine bolts, connecting rod bolts, and cylinder head bolts to ordinary standard parts and one 2.9-level high-strength bolts. They are used to fasten various automotive moving parts and joints and withstand significant stresses.

Alloy Steel Flanged Button Head Screws: Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

Black-oxide alloy steel screws are mildly corrosion-resistant in dry environments.

Zinc-plated alloy steel screws resist corrosion in wet environments.

Metric Extra-Wide Flanged Button Head Screws: With a flange comparable in size to a washer, these screws distribute pressure better than standard flanged screws. Made from 316 stainless steel, these screws have excellent resistance to chemicals and salt water. They may be mildly magnetic. Head height includes the flange. Length is measured from under the flange. For high-quality Alloy Steel Flanged Button Head Screws fasteners and professional technical support, don't hesitate to co don't us at adelajonly@gmail.com or visit our website at [Juxin Fasteners]: https://www.juxinfasteners.com.

The standard quality problems of our automobile fasteners are as follows.

1. Unqualified size and thread

Fasteners, as general-purpose parts, have high interchangeability requirements. Any deviation in size can directly impact this, potentially affecting the connection strength, anti-loosening performance, or lifespan. Equally crucial is the thread, which serves as a vital indicator for assessing the effective fastening force of fasteners.

2. Unqualified hardness

Hardness is also an important indicator to assess the mechanical properties of fasteners, fasteners in the installation and use by the performance level to determine the working load and installation torque, so for different properties of the material to be fastened to the hardness of the product control at a reasonable level. As high hardness can reduce the fatigue resistance of the product, some companies need to improve the strength of the product; the hardness of the fastener will be controlled at a high level, making some of the product hardness exceed the standard.

3. Excessive decarburization layer

The decarburization layer is the primary assessment of the quality of fasteners; decarburization reduces the surface hardness and strength of parts significantly, seriously affecting the surface contact strength and fatigue life of fasteners, especially on the threaded parts of the harm more prominent. Decarburization is mainly due to improper control of the heat treatment process or backward heat treatment equipment, resulting in surface carbon loss. The fastener industry should promote good product quality, strict prevention of quality accidents, and implement zero-defect management, which may be a good way. Zero-defect management of fasteners is a new management concept and a new challenge.

4. The basic principles of zero-defect fastener management mode are as follows.

(1) Quality should meet the objective requirements of customers and the market. The true meaning of quality is integrity, not just "good."

(2) A quality assurance system is prevention, not inspection, of error before the elimination of the cause of the error, rather than inspection and after the gatekeeper, through training, education, role modeling, and leadership, can prevent, must be the senior leadership of the system for continuous attention and measurement.

(3) Your role in getting things right the first time is crucial. Your training, the resources we provide, such as time and equipment, and your commitment to compliance must accomplish it.

(4) Quality standards will be paid for if they must be met.

The intent of zero defects emphasizes a determination and a mentality, an uncompromising attitude that is manifested in never letting go of any small quality problem, finding the cause and solving it completely, and preventing the problem from occurring with the most positive, conscientious, and prudent attitude.

Preventing problems is the highest state of quality management; the result is that the enterprise's products meet the user's requirements, that is, no defects in the product, which is "zero defects" management to achieve the ultimate goal. A fastener enterprise only pursues zero defects, with their efforts to minimize losses to achieve the "3N" process quality control objectives: do not accept defective products, do not produce defective products, and do not transfer faulty products. To accomplish the process quality control goal of "zero defective product flow rate

The rapid development of the automobile industry and its product quality put higher requirements. For example, automobile fasteners need to implement more stringent quality standards. Each batch of fasteners should be tested by strict sampling and various mechanical tests before leaving the factory.

5. Lastly

In short, pursuing high efficiency, strong toughness, and lightweight combination of automotive fasteners is still the essence of steel and manufacturing. It's reassuring to know that metal materials science will play a crucial role in protecting the safety of automotive fasteners.

Therefore, fastener enterprises should pay attention to improving product quality. They can not simply pursue a price war as a means of competition. They should adjust the structure of the fastener industry, eliminating backward fastener enterprises, to achieve the adjustment of the industrial structure to continuously improve product quality and promote the upgrading of the industry. For high-quality Alloy Steel Flanged Button Head Screws fasteners and professional technical support, don't hesitate to co don't us at adelajonly@gmail.com or visit our website at [Juxin Fasteners]: https://www.juxinfasteners.com.