1. What are the main technical indicators that should be understood when purchasing composite wood flooring? When purchasing composite wood flooring, the main technical indicators that should be understood are: 1. Wear index; 2. Impact resistance; 3. Resistance to stains and stains; 4. Resistance to smoke; 5. Wear of contact surfaces; , scratches on the casters of the chair; 7, volume expansion after water absorption; 8, formaldehyde emission. 2. How to understand the amount of formaldehyde released? Formaldehyde is a kind of chemical gas. When the content in the air reaches a certain concentration, it will cause harm to the human body. It is mainly used in the manufacturing process of composite materials to act as a bonding agent. The formaldehyde contained in the floor will not evaporate immediately, but will slowly evaporate due to different temperature and humidity conditions, and the volatilization time is more than ten years. Long-term living in an environment where the concentration of formaldehyde exceeds the standard, formaldehyde will cause obvious damage to the eyes, nose and respiratory system of people or cause skin diseases. Animal experiments have also shown that excessive formaldehyde release can also cause cancer of the nose and respiratory system. Therefore, countries have strict standards for the release of formaldehyde from plywood products. For example, Japan and the European Community countries require that the amount of formaldehyde released per 100 grams of plywood must be less than or equal to 10 milligrams, otherwise it will not be allowed to go on sale; China's related plywood products The formaldehyde emission standard (GB/T18102-2000) stipulates that: Class A (excellent product)? D?D formaldehyde emission per 100g plywood must be less than or equal to 9mg; Class B (qualified product)? D?D per 100 The amount of formaldehyde released from the plywood is between more than 9 mg and less than 40 mg. 3. What should I pay attention to when installing? Answer: 1. Can not be installed on uneven or wet ground, such as kitchen and bathroom. 2, can not be installed on the newly laid concrete floor. 3. The concrete floor should be dried for at least 80 days. 4. Use a polyethylene mat that is at least 2 mm thick. 5, can be laid on the plumbing floor, but can not be laid on the electric heating floor. 4. Why must the installation conditions be strictly regulated? A: If the floor is installed on a ground that does not conform to the specifications, the following consequences will result: the floor is bulging, lifting, and the floor is uneven. 5. Why do you need to go to the construction site to survey in advance? A: Professional and technical personnel conduct surveys according to the standard, in order to ensure that the ground conditions meet the specifications before the installation of the floor, and ensure the best installation effect. 6. Q: Why do you need to implement the 24-hour delivery system? A: It is to adapt the floor to the difference of temperature and humidity inside and outside the user's living room, to ensure that the floor will not be deformed after installation and to ensure the installation quality. 7. Q: What is the difference between composite wood flooring and solid wood flooring? A: The biggest difference between composite wood flooring and solid wood flooring lies in its structure. Composite wood flooring is a composite structure with high surface wear resistance and good moisture resistance. The solid wood flooring feels good and feels luxurious after paving, but time It is often easy to deform when it grows. Both of them have their own characteristics, but because of its unique advantages, and the selection of wood flooring from the fast-growing forest, it can protect the natural resources of the environment to the greatest extent, so it has been received by many consumers around the world, especially Environmentalists are welcome. Since the birth of laminate flooring in 1985, sales have been rising rapidly. By 1998, it has reached 180 million m2, and it is likely to become the most important material for floor decoration in the near future. 8. The formula for calculating the number of baseboards is: The number of square meters of the floor used in the room floor / 2.4. 9. The calculation formula for the household cost of installing stairs in the room is: (The floor area of ​​the floor used in the room + the number of square meters used for the stairs) ☆ unit price + stairs level ☆ 70 yuan. 10. Q: How to determine the purchase area when purchasing the floor? A: Add 8% or so of loss to the actual use of the house. The final settlement of the project is based on the actual installed square meters. 11, Q: What is the green core moisture-proof function? A: There are two main types of composite wood flooring substrates. One is particleboard, and the other is quality intrusion. 8. It is a small-diameter wood that is ground and glued under high temperature and high pressure. General purpose. Among them, the density of medium density board is 550 kg-880 kg/m3, the density of high density board is ≥880 kg/m3 or more, and “Ruijia†is a high density board. Since the core layer of the composite wood floor is wood, it is still afraid of water and water. To this end, the “Ruijia†floor has added special moisture-proof additives in the production process of the high-density board, so that the water-absorbing thickness expansion rate of the floor is smaller and the general core layer is played. In order to distinguish, the moisture-proof core layer is usually dyed green, which is the green core floor seen by consumers. 12. Q: Is the green core moisture-proof floor not afraid of water? A: The composite wood floor is moisture-proof, and it is also woody. The wooden things are all afraid of water. The green core moisture-proof floor mainly plays the role of strengthening the moisture. Some composite wood floors can be soaked in water because these floors are excessively increased in the amount of urea-formaldehyde resin during processing or made of phenolphthalein. However, the addition of urine aldehyde resin glue will inevitably lead to excessive formaldehyde, and phenolphthalein rubber is highly toxic, and it is strictly prohibited to be used indoors in foreign countries. 13, Q: How to care. Daily care is very simple, no need to polish, wax and paint, just use a vacuum cleaner or wipe with a damp cloth or mop. If you are accidentally soiled with nail polish, ink, alcohol, etc., just use a nail polish remover or detergent to clean it. Special Note: Never use water to wash the floor; do not use a highly corrosive detergent to clean the floor. The wear layer is aluminum oxide, which is an amphoteric oxide that reacts with acid and can also react with alkali. reaction. Avoid alkaline substances, scrub with rice water is a good way. Avoid sanding, waxing or painting on the floor. Sanding Belt Converting Line
The roll slitter machine type is designed to cut rolls of abrasive paper and cloth and to rewind them with grain both inside and outside.
Slitting machine is suitable for slitting and rewinding of roll paper, non-woven fabrics, melt blown fabrics, hot-air cotton, films (PET, PE, PI), stickers, labels and other materials.
We distributes and wholesales various brands of Bonded Abrasives , Abrasive Sanding Disc, Cutting Wheels , Flap Wheels , Flap Disc Backing Pad, Flap Disc Adhesive , and Surface Conditioning Product etc, and enjoy a high position among consumers.
Abrasive Belt Making Machine,abrasive slitter,Abresive Belt Slitting Machine,Jumbo Roll Slitting Machine,Abrasive Roll Slitting Machine Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jd-abrasives.com
1.Abrasive Roll Slitter-Would slit coated abrasive from wide rolls into narrower rolls.
2.Abrasive Cut to Length Machine-To cut down certain length of abrasive material from abrasive rolls
3.Sanding Belt Skiving Machine-to make the abrasive belt joint processing
4.Joint Press Machine-To make the sanding belt joint firmly joint together after it`s applied glue & splicing tapes
5.Belt Slitter-slit wide sanding belt into narrow ones
6.Tensile Strength Test Machine-To test joint strength For each kind of converting machines, we have several models.
Slitting machine is a high-precision, high-sensitivity slitting equipment. The rewinding and unwinding uses an air shaft, and the tension is controlled by a magnetic powder clutch. The unwinding correction adopts ultrasonic automatic correction control, which can realize automatic detection, automatic correction, and automatic meter counting. The slitting is accurate, the slitting speed is fast, and the operation and maintenance are convenient.
This machine is mainly for small belt slitting, with fix knife sets, precise slitting. Need to change knife sets when slit different size of sanding belt. 3 sizes available.
