How to repair damaged student desks and chairs? Maintenance method introduction

It is relatively common for students’ desks and chairs to be damaged during use, because students in their student days are more lively and active, and may deliberately destroy desks and chairs, so that desks and chairs will appear. If it is damaged, it can be repaired or replaced with a new one. However, the school’s annual budget is limited, and in most cases, it is repaired. How to repair the damaged student desks and chairs?

First, desk and chair table and chair surface damage repair

Classroom Chairs and Tables

The materials of the table and chair surface are generally three kinds of wood or plastic steel:

1. Steel is generally not damaged, but the coating on the surface may fall off, so when the coating on the steel table and chair surface falls off, it must be repaired in time. This repair is generally required. Sand and clean, then re-coat the paint and wait for it to dry before use.

2. If the surface of the plastic table and chair is too thin and brittle, it is relatively easy to damage, or it will be damaged when it is damaged by sharp objects and harmful substances such as fire. Generally, if the damage area of ​​the plastic material is large, it cannot be repaired normally. It needs to be replaced every time. If there are only scratches, or some small areas of damage, we can choose to use glue to bond, and then grind and smooth it.

3. There are also more wooden desktops now, because wooden ones can give people a fresh, natural and comfortable feeling, so they are also used more, but wooden ones are more easily damaged. If the wood is poor, it is more likely to be damaged. In the case of damaged wooden desks and chairs, if the damage is small, you can choose woodworking technology for processing, and if the damage is large, you can consider replacing the desks and chairs.

Second, desk and chair table and chair leg damage repair

Classroom Style Tables

1. Steel desks and chairs The legs of desks and chairs are generally made of steel. The legs of this kind of desks and chairs are relatively strong and generally will not be damaged during use, but if they are bent or broken, they can be Replacement treatment, if only the paint surface is peeled off, it can be repainted. Another problem is the anti-skid and noise-proof pad of the steel table and chair legs. If the anti-skid pad is damaged, it can be replaced in time to ensure normal use and the stability of the table and chair.

2. The legs of plastic tables and chairs are generally solid, so that they can be used for support, but this table and chair cannot be used by older students, because the load-bearing capacity may be small, and the table and chair legs of this material have poor fire resistance, so when using pay attention.

3. The wooden desk and chair legs are more likely to be damaged, because the wooden ones are likely to be damaged by fire, water, or humid environments, knives, or even vigorous pushing and stamping. Repair small scratches, replace chair legs in case of major problems.

3. Other damage repair of desks and chairs

Others include table pockets, screws, table and chair sides, etc. It is common that the protective layer on the table and chair sides falls off, repair and replace it in time, and the screws fall off, just tighten it, and the damage to the table pocket is less. , If the quality of the wood is poor, it may be loose, just tighten it with nails.

The above is the entire content of how to repair the damage of student desks and chairs. In fact, the points that are easily damaged are the above. We only need to use appropriate methods to repair or replace them, so that the safety of use and life can be guaranteed. .

Material description and advantages of student desks and chairs

We all know that traditional desks and chairs are made of yellow wood. The legs of the desk and the desktop are nailed together with nails, and over time, there are potholes on the desktop. Later, in order to protect the service life of the desks and chairs, the school All wrapped up with tablecloths. But now there is no need to worry about desks and chairs so much. Its material is resistant to aging, moisture-proof, flame-retardant and has many advantages. The following school office furniture manufacturers will give you a detailed introduction to the commonly used materials and advantages of student desks and chairs!

Common materials for student desks and chairs

1. The frames of the desks and chairs are all made of high-frequency welded steel pipes with a wall thickness of 1.2mm or more, the main support frame steel pipe wall thickness is more than 1.5mm, and the surface of the steel pipe is electrostatically sprayed, which is characterized by strong adhesion and good richness. The surface of the spray coating is fine, smooth and mechanically good.

2. The class bucket of the desk is usually formed by one-time stamping bucket. The surface of this material is smooth and seamless, and the safety is high.

Tables for School Furnitures

3. The desktop version uses 18mm fireproof board veneer, which belongs to the post-forming board and has good properties such as heat resistance, wear resistance, smoke resistance, acid and alkali resistance, and impact resistance, and the veneer color of this material is brighter , loved by students.

4. The back and seat surface of the chair are made of multi-layer veneer bent board bottom plate, and the surface is pasted with fireproof board, which is formed by hot pressing. This material and process has good gluing performance, durability, high strength, realistic texture, smooth surface and beautiful color. Its thickness is 12~14mm. One-time forming PVC, hollow plastic and other materials are also commonly used materials for chair surfaces and can be used.

5. The desks and chairs of the general amphitheatre are made of melamine board, which has the properties of heat resistance, acid and alkali resistance, smoke resistance and impact resistance. The support frame of the main body is made of steel pipes with a wall thickness of more than 2mm, and other parts are made of steel pipes with a thickness of more than 1.2mm. There are soft and hard seats for the flip plate.

College Classroom Tables

The advantages of student desks and chairs

1. The high-frequency welded steel pipe used in the main body is like a plastic steel window, which will not deform or deteriorate even if it is exposed to wind, sun and rain, and its service life can reach more than 15 years.

2. The legs of this desk and chair are wrapped with foot covers, so students will not make noise when they move, and will not affect the learning of other students.

3. The surface of the table and chair is smooth and no nails are exposed, and it will not hang on the students’ clothes, with high safety performance.

4. The desks and chairs made of this material will not deteriorate or deform when exposed to water, which is convenient for students to clean, and there is no need to worry about them being deformed by moisture when cleaning in the classroom.

5. There are serious fire safety hazards in public places. In order for students to have a safe learning environment, the desktop chairs are made of fire-resistant boards with good flame retardant performance and high safety factor.

Furniture for School Children

6. The desks and chairs are made of green and healthy materials. The raw materials meet the relevant standards and have no peculiar smell. There is no need to worry about the occurrence of formaldehyde exceeding the standard and affecting the health of students.

The above is the whole content of the material description and advantages of students’ desks and chairs. After the above introduction, we have learned that the main body of the desks and chairs is made of high-frequency welded steel pipes. The bottom plate and the surface are pasted with fireproof board. The desktop of the amphitheater is made of melamine board, and the flip board has soft and hard seats. The use of the above materials has the advantages of aging resistance, flame retardant, moisture resistance, green health and so on.

What are the factors that affect the quality of desks and chairs?

There are many types of desks and chairs on the market, the price difference is large, and the quality is also uneven. If you blindly choose cheap ones, then the quality is definitely not guaranteed. There are many factors affecting quality. If you want to buy good quality products, we must first understand what factors affect the quality of desks and chairs?

Process factors that affect the quality of desks and chairs

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 is gradually reduced. The touch area between the desks and chairs and the steel strip decreases, the current density increases, and the pressure on the welding point It is also added, so the diameter of the welding wheel cannot be too small.

2. Welding current

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

Cheap School Desks and Chairs

3. Welding time

The welding heat of the desks and chairs is proportional to the welding time, but the power-on time is controlled by the running speed of the welding wheel. Under normal circumstances, there is no need to make adjustments. Even if you adjust, you only need to make small-scale adjustments.

4. Touch resistance

The greater influence on the occurrence and spread of heat is the resistance of the touch surface of the steel strip. The main influencing factors of the touch resistance are the cleanliness and roughness of the touch surface. If the touch surface of the desk and chair has high resistivity oxide or dirt The layer will increase the resistance. If only part of the dirt or oxide is present, the current will be unevenly distributed, 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 relatively large current will occur at the touch point. At the same time, the touch resistance will increase due to the decrease of the current channel.

Use factors that affect the quality of desks and chairs

Childs School Desk and Chair

1. Deliberate destruction: When using it, deliberately destroying, stepping on tables and chairs, hitting tables and chairs with hard objects, or using sharp objects to portray the tables and chairs, no matter how good the quality is, the desks and chairs are easily damaged, causing deformation or falling apart. It directly affects 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 table and chair surfaces or the main frame will rust. Rust will cause the material to become thin 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, and if it is not cleaned regularly, it will cause the desktop to be corroded.

4. Pulling hard: Sometimes school activities need to move or move the desks and chairs. When moving, you must lift the desks and chairs to move. Do not pull hard, otherwise it will cause the table legs and chair legs to become loose or damaged.

What are the factors affecting the quality of desks and chairs? In response to this problem, the editor introduced the process factors and use factors that affect its quality. Process factors include welding wheel diameter, welding current, welding time, touch resistance, etc., use factors include deliberate damage, improper maintenance, improper cleaning, and harshness. Wait.