1. Kitchen handle selection: Don't choose too many textures for kitchen cabinet handles. Because the kitchen is used more frequently, the oily smoke is large, and the handles with too many textures are not easy to clean after being stained with oily smoke. If the handle is placed in the kitchen, you should choose durable and corrosion-resistant materials. Aluminum alloy handles are a good choice for the kitchen.

2. Handle selection in the hallway area: The handles in this area mainly include the handles of the hallway cabinet and the shoe cabinet. The handles placed in the hallway cabinet should emphasize their initiative.

3. Selection of handles for shoe cabinets: attention should be paid to its functionality, and single-headed handles whose color and panel are close to each other should be selected so as not to hinder the use of the kitchen.

What are the materials of the door handle? After the introduction of this article, I also know the material of the specific handle. I hope that when you buy the handle, you can know how to choose the material of the door handle, so that you can choose an easy-to-use door handle for daily use It’s not easy to make mistakes, causing various effects or troubles.

3. Select drawer slides for field test

A good cabinet drawer slide rail has very little resistance when it is pushed and pulled, and when the slide rail is pulled to the end, the drawer will not fall off or tip over. You can also pull out the drawer on the spot and click on it with your hand to see the drawer Whether there is looseness, whether there is a creaking sound. At the same time, where the resistance and resilience of the drawer slide during the drawer pull-out process appear, and whether it is smooth, you also need to push and pull several times on the spot, and observe it to determine.

4. Quality identification of cabinet drawer slides

When choosing cabinets, the quality of the drawer slide rail steel is also the most important. Good cabinet drawers can be pulled out without tipping off, and they are easy to disassemble. Different specifications of drawers have different steel thicknesses and different load-bearing weights. It is understood that a 0.6-meter-wide drawer of a big brand, the drawer slide steel is nearly 3mm thick, and the load-bearing capacity can reach 40-50 kg. When purchasing, you can pull out the drawer and press it hard with your hand to see if it will loosen, squeak or turn over.

5. Pulleys for cabinet drawer slides

Plastic pulleys, steel balls, and wear-resistant nylon are the three most common pulley materials for cabinet drawer slides. Among them, wear-resistant nylon is top grade. Due to the use of American DuPont technology, this pulley has the characteristics of smooth pushing and pulling, quiet and silent, and soft rebound. Push and pull the drawer with one finger. There should be no astringency and no noise.

Whether the epidemic is a danger or an opportunity for our foreign trade companies depends on the integration efficiency of our company's industrial chain.

Today's competition is the competition of the industrial chain, and the integration of various departments within the enterprise and the upstream and downstream of the enterprise will affect the competitiveness of the enterprise. The essence of enterprise competition is the efficiency of information collection and data processing and dissemination of the entire industry chain.

The thinking dimension of corporate management stays at different times, some still stay in the industrial age, and some bosses have already evolved into the data age.

In the industrial age, that is, in the 1990s, information is not transparent, and consumers have few channels for understanding products. Through mass production, enterprises save manpower through industrial equipment and reflect time efficiency. Save costs through batches and manufacture large quantities of products with the same specifications. Product iteration is slow, winning through market scale.

In the data age, information is basically transparent, and consumers have many channels for understanding products. Companies understand consumer needs, launch personalized products as soon as possible, and win through data processing efficiency. Product iteration is very fast.

Overseas Processing Methods and Quality Control for Door Hinges

Foreign manufacturers have adopted more advanced methods for producing door hinges, particularly for the traditional design shown in Figure 1. These manufacturers utilize door hinge production machines, which are combined machine tools that enable the manufacturing of spare parts such as body and door components. The process involves placing the material (up to 46 meters long) in a trough, where the machine tool automatically cuts it and positions the parts for milling, drilling, and other necessary procedures. The finished parts are then assembled once all machining processes are complete. This method reduces errors caused by repeated positioning, ensuring dimensional accuracy. Additionally, the machine tool is equipped with an equipment status monitoring device that monitors product quality parameters in real time. Any issues are promptly reported and adjusted.

To maintain quality control during hinge assembly, a full opening torque tester is utilized. This tester conducts torque and opening angle tests on the assembled hinges and records all the data. This ensures 100% torque and angle control, and only those parts that pass the torque test proceed to the pin spinning process for the final assembly. During the swing riveting process, multiple position sensors detect parameters such as the diameter of the riveting shaft head and the height of the washer, guaranteeing the torque meets the requirements.

Domestic Processing Methods and Quality Control for Door Hinges

Currently, the general production process for similar door hinge parts involves purchasing cold-drawn plow steel and subjecting it to multiple machining processes such as cutting, polishing, deburring, flaw detection, milling, drilling, etc. Once the body parts and door parts are processed, they are assembled by pressing the bushing and pin. Equipment used includes sawing machines, finishing machines, magnetic particle inspection machines, punching machines, high-speed drilling machines, powerful milling machines, and more.

In terms of quality control methods, a combination of process sampling inspection and operator self-inspection is adopted. Various routine inspection methods, including clamps, go-no-go gauges, calipers, micrometers, and torque wrenches, are utilized. However, the inspection workload is heavy, and most inspections are performed after production, limiting the ability to detect any potential issues during the process. This has resulted in frequent batch quality accidents. Table 1 provides quality feedback from the OEM for the last three batches of door hinges, highlighting the inefficiency of the current quality control system, leading to low user satisfaction.

To address the high scrap rate issue, it is planned to analyze and improve the production process and quality control of door hinges through the following steps:

1. Analyze the machining process for the door hinge body parts, door parts, and assembly process, evaluating the current process and quality control methods.

2. Apply statistical process control theory to identify quality bottleneck processes in the door hinge production process and propose corrective measures.

3. Enhance the current quality control system through re-planning.

4. Utilize mathematical models to predict size by modeling the process parameters of the door hinge.

By focusing on these aspects, the aim is to improve the efficiency of quality control and provide valuable insights for similar enterprises. AOSITE Hardware, which prides itself on offering excellent customer service, has been specialized in producing high-quality door hinges for many years. Its commitment to providing the finest hardware products has gained recognition from customers worldwide and various international institutions.

1.

A wide-body light passenger project is a project that is completely designed based on data and utilizes the advantages of accurate digital data, fast modifications, and seamless interface with structural design. It seamlessly integrates shape, structure, and digital modeling throughout the project process. By introducing stages of structural feasibility analysis, the project achieves the goals of structural feasibility and satisfactory modeling, and releases the final design in the form of data. The inspection of the appearance CAS digital analog CheckList at each stage is extremely important. This article aims to provide an in-depth analysis of the rear door hinge design.

2. Rear door hinge axis arrangement:

The core focus of the opening motion analysis lies in the hinge axis layout and hinge structure determination. To meet the requirements of opening the rear door 270 degrees, the hinge must be flush with the CAS surface and have a suitable inclination angle. The following steps outline the analysis process:

a. Determine the Z-direction position of the lower hinge, which considers the space for reinforcement plate arrangement and welding process size.

b. Arrange the main section of the hinge based on the Z direction of the lower hinge and determine the four-axis positions of the four-linkage system.

c. Determine the inclination angle and forward inclination of the four axes using the method of conic intersection.

d. Determine the position of the upper hinge based on the distance between the upper and lower hinges.

e. Arrange the main sections of the upper and lower hinges in detail, considering manufacturability, fit clearance, and structural space of the four-bar linkage mechanism.

f. Perform DMU movement analysis to analyze the back door's movement and check the safety distance during the opening process.

g. Adjust the parameters of the hinge axis inclination angle, forward inclination angle, connecting rod length, and distance between the upper and lower hinges to analyze the opening feasibility of the rear door. If adjustments are unsuccessful, the CAS surface needs to be modified.

3. Rear door hinge design scheme:

The rear door hinge adopts a four-bar linkage mechanism. Due to the adjustment in shape, three design options are proposed:

3.1 Scheme 1: Ensures alignment with the CAS surface and parting line, but has disadvantages in terms of appearance and structural risks.

3.2 Scheme 2: Protrudes the hinges outwards to eliminate gaps with the rear door in the X direction and provides structural advantages.

3.3 Scheme 3: Matches the outer surface of the hinges with the CAS surface but has a large gap between door links.

After a comparative analysis and discussions with modeling engineers, it is determined that the third scheme is the optimal solution.

4. Summary:

Designing the hinge structure requires considering various factors such as structure, shape, and optimization. The forward design approach in the CAS design stage allows for meeting structural requirements while maintaining a high-quality appearance. The third scheme is chosen to minimize changes to the outer surface, ensuring consistency in the modeling effect. AOSITE Hardware is committed to continuous improvement in product quality and applies the craftsman spirit to manufacturing. With a focus on R&D, AOSITE Hardware has become a leading tool manufacturer in the industry.

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