What are the factors that affect the quality of desk and chair sets?

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There are many kinds of desk and chair sets on the market, the price difference is large, and the quality is also uneven. If you choose cheap ones, the quality cannot be guaranteed. There are many factors that affect the quality. If you want to buy good quality products , we must first understand the factors that affect the quality of desk and chair sets.

Process factors affecting the quality of desk and chair sets

High Quality School Table with Chair

1. Welding wheel diameter

The diameter of the welding wheel determines the diameter of the nugget. As the new welding wheel is ground again and again, the diameter gradually becomes smaller, the contact area between the desk and chair and the steel strip is reduced, the current density is increased, and the pressure on the welding point is increased. Also added, so the diameter of the welding wheel cannot be too small.

2. Welding current

The influence of the welding current of desks and chairs on the heat is a quadratic relationship. As an adjustable parameter, it can be selected according to the thickness of the welded steel strip. The factors that affect the actual current change are the fluctuation of the power supply voltage and the resistance of the secondary circuit. In order to ensure that desks and chairs are not affected by external conditions, it is necessary to adopt a constant current control system.

3. Welding time

The welding heat of desks and chairs is proportional to the welding time, but the power-on time is controlled by the speed of the welding wheel. Generally, no adjustment is required. Even if the adjustment is made, only small-scale adjustments are required.

4. Touch resistance

The biggest influence on the occurrence and spread of heat is the resistance of the touch surface of the steel belt. The main factors affecting the touch resistance are the cleanliness and roughness of the touch surface. If the touch surface of desks and chairs has oxides or dirt with high resistivity layer, which will add resistance, and if only part of the dirt or oxide is present, will make the current spread unevenly, so the touch surface needs to be kept clean and tidy. If the touch surface is rough and uneven, the desks and chairs will form part of the touch point, and a large current will occur at the touch point, and the touch resistance will increase due to the reduction of the current channel.

2. Factors affecting the quality of desks and chairs

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1. Deliberate destruction: Deliberately destroying, stepping on desks and chairs, hitting desks and chairs with hard objects, or carving on desks and chairs with sharp objects, even the best quality desks and chairs are easily damaged, resulting in deformation or falling apart. directly affect the shortening of its service life.

2. Improper maintenance: If you encounter strong corrosive detergents, the tables and chairs will be corroded. After a long time, the tables and chairs or the main frame will rust. Rust will cause the material to become thinner and directly affect the product quality.

3. Inadequate cleaning: If it is not cleaned for a long time during use, it will cause residual oil on the desk. If it is not cleaned regularly, it will cause the desktop to be corroded.

4. Pulling and pulling: Sometimes the school needs to carry or move the desks and chairs for activities. When moving, the desks and chairs must be lifted and moved.

The above is the entire content of the process factors and use factors that affect its quality. The process factors include welding wheel diameter, welding current, welding time, touch resistance, etc., and the use factors include deliberate destruction, improper maintenance, and inadequate cleaning. Pull hard and so on.

How to maintain school desks and chairs?

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For students, they naturally hope to use new desks and chairs, but such frequent replacement of new desks and chairs will increase financial expenditures for schools. Besides, steel and wood desks and chairs are of reliable quality and long service life. Longer, regular maintenance can avoid the waste caused by repurchasing new desks and chairs. Therefore, schools should pay attention to the maintenance and maintenance of desks and chairs.

First of all, desks and chairs are generally used in teaching places, and students are the main body of use. Schools should warn students to take care of public property and their own desks and chairs. It is forbidden to scribble on desks and chairs, or even scratch them with sharp objects. , causing permanent scars. The desks and chairs should be handled with care, and violent behaviors, such as smashing and smashing, should be prohibited.

In addition, to stop desk culture, it is not advisable to write poems and draw pictures on desks and chairs. Therefore, it is necessary to build bricks from the overall quality of students and school education.

At present, the design of student desks and chairs needs to consider many factors. The designed and produced student desks and chairs must meet the most basic three performances, and such student desks and chairs can be qualified.

High Quality School Table with Chair

1. Practical performance

This is the primary condition for the design of desks and chairs. The design of student desks and chairs must meet his direct use and meet the needs of students. This is the most basic. If the needs of students cannot be met, no matter how beautiful the appearance is Just empty shelves, meaningless.

2. Comfortable performance

This is the demand for high-quality life now. The comfort of student desks and chairs is also a reflection of the value of desks and chairs. The designed student desks and chairs must conform to ergonomics, and can also have detailed observation and analysis of life. In order to design comfortable products.

3. Safety performance

The safety performance of school desks and chairs is the most basic requirement for its quality assurance. Products lacking sufficient strength and stability are very dangerous for students. If you want a student desk and chair with a high safety factor, you must make a correct judgment on the performance of the material, and carry out scientific calculations in the structural design and node design, and strictly screen the raw materials.

Single Desk Chair

In addition, we also need to pay attention to the maintenance of students’ desks and chairs. The specific points are as follows:

1. School desks and chairs should be placed in a well-ventilated, dry place, not close to fire or damp walls, and avoid sun exposure.

2. The dust on the desks and chairs should be removed with a duster. Try not to scrub with water. If necessary, wipe it with a damp soft cloth. Do not scrub with alkaline water, soapy water, or washing powder solution, so as not to affect the brightness of the paint or cause damage. The paint is peeling off.

3. When moving desks and chairs, lift them off the ground, do not push or pull hard, so as to avoid loose or damaged legs.

4. Steel desks and chairs should avoid frequent contact with water to prevent internal rust.

5. Do not put acid and alkali corrosive substances on the desks and chairs.

6. A comprehensive maintenance of desks and chairs should be done regularly, and the time should be controlled once every two months.

The above is all the information about the maintenance of school desks and chairs. Only by paying attention to daily maintenance can the service life of desks and chairs be extended and the learning efficiency of students be improved.

How to choose the school desk and chair manufacturer correctly?

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The use of school desks and chairs will have a greater impact on schools and students, so there are many aspects that need to be paid attention to when configuring desks and chairs. So how to correctly choose school desks and chairs manufacturers?

How to choose the school desk and chair manufacturer correctly

Classroom Chairs and Tables

1. First of all, before we choose the school desk and chair manufacturer, we can conduct a systematic inquiry on the manufacturer on the Internet, so that we can have a certain basic understanding of the manufacturer, but we need to pay attention to not blindly believe that its online Because they are basically beautified, they are not necessarily true. Therefore, after having a basic understanding, you can conduct on-the-spot inspections in several favorite manufacturers, so that you can see more intuitively. The strength of the manufacturer.

2. Then we can observe more about the scale of the manufacturer during the on-site inspection, such as its production equipment, technicians and processes, etc. Generally, manufacturers with sufficient strength are relatively complete as a whole, and their requirements are relatively high. Therefore, from these aspects, it can be seen whether the manufacturers of school desks and chairs are good or not, so that the selected products can be guaranteed enough and avoid unnecessary hidden dangers and troubles to themselves.

3. Because desks and chairs are used more frequently, and the users are mainly students, but the school’s procurement itself also has certain restrictions, so the quality of school desks and chairs is more valued by everyone, so school classes Table and chair manufacturers must ensure that their quality is good enough, but some damage will inevitably occur after a period of use, so its after-sales is very important, so when choosing a manufacturer, pay attention to whether it can provide good after-sales.

Several tips for purchasing school desks and chairs

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1. The color of school desks and chairs should not be too bright

When choosing school desks and chairs, many people think that they should choose brighter and more active colors, or choose a lot of cartoon patterns according to children’s preferences, etc. They feel that bright and bright colors help children form optimistic and lively characters. . However, some agency tests have shown that the brighter the paint color, the more heavy metals such as lead it contains. This is mainly caused by the lead compounds contained in the paint pigment, so the brightly colored school furniture has a much higher content of harmful substances than ordinary ones. Therefore, when purchasing desks and chairs, remember to ask the manufacturer for the school furniture paint inspection report to check whether the desks and chairs are qualified.

2. School desks and chairs with environmentally friendly materials should be selected

The wood material maintains the original color of the wood, which is natural and rustic, environmentally friendly and healthy, and most of them belong to good school furniture. Most of the non-wood materials are synthetic materials with fashionable appearance and low price. However, due to the application of some chemical materials in the material synthesis process, they have hidden dangers of environmental protection. It is recommended that consumers choose natural wooden school furniture or some well-known brands of non-wood desks and chairs as much as possible when choosing.

Adjustable School Desk and Chair

3. Be careful to buy the material of the metal edge

Many desks and chairs are decorated with shiny aluminum edges, but most of the metal edges are sharp, and children are likely to scratch their hands when they touch them. Now more and more plastic edges are used. And some of the metal that acts as a support for the frame, the sharp corners are installed inward to minimize the possibility of children touching. Like screws may also have sharp metal edges, which requires special hardware fasteners to cover sharp screws in classroom furniture.

4. Choose less furniture made of glass

Generally speaking, desks and chairs are not suitable for use of ordinary glass materials, because the glass is fragile, and the sharp edges and corners formed after shattering can easily cause injury. If you want to use transparent materials for reasons such as aesthetics, the designer recommends using tempered glass or organic sheets instead.

The above is the introduction of how to correctly choose the school desk and chair manufacturer and the skills of purchasing desks and chairs. I hope it can be helpful to everyone. Whether it is choosing a manufacturer or a desk and chair, you can choose the right one.