Comprehensive comparison of multi-layer solid wood flooring with solid wood flooring and laminate flooring
1. Stability: The solidity of the wood fiber has the unidirectionality of the wood fiber and the tree age of the tree core and the tree edge is different, which results in different degrees of wood density of the plate, thus causing the plate to have different thermal expansion coefficient and easy deformation, in dehydration It is easy to sew in the case. The production process of the laminate floor is to process the wood waste into powder, add glue, press it into high-density board under high temperature and high pressure, then paste the computer-printed wood grain paper, and then apply the aluminum oxide coating and wear-resistant material. Finally processed into the shape we see. The stability of the reinforced plate is better, but since the substrate is a high-density plate, it is easy to swell as a whole after being heated and damp. If the shrinkage seam left during installation is small, it is easy to arch, and the floor is afraid of water. It is easy to swell after encountering water and is not easy to handle.
Multi-layer solid wood flooring, the production process is to cut the wood into veneers, and then heat-press molding according to the wood grain criss-crossing with resin glue. Because the structure is criss-crossed, the layers are mutually restrained, thus overcoming the thermal expansion and contraction coefficient of wood by more than 85 percent, the deformation is small, and the substrate core is selected. The looser wood of the eucalyptus, the loose pores between the woods can also offset some of the stress of wood expansion and contraction. Therefore, its stability is much stronger than other floors.
2, the sense of foot: solid wood flooring and multi-layer solid wood flooring are made of solid wood, the foot feel is the same, and the feeling of the floor of the laminate is more rigid due to its different structure (let the customer step on the laminate floor with both feet and On the multi-layer solid wood floor, you can clearly feel the difference between them). It should be noted that the paint surface of the solid wood floor is a thick layer of UV paint. The human body only touches the UV paint instead of the wood itself; the paint of the multi-layer solid wood floor penetrates the wood fiber through the advanced infiltration process. Among the pores, the human body is exposed to a mixture of paint and wood. Therefore, the multi-layer solid wood flooring has the characteristics of warm winter and cool summer, which is also the performance that other flooring materials do not have. (You can let customers put their hands on the multi-layer solid wood floor and other floors, and you will immediately feel the obvious difference between them.
3, wear-resistance: the national standard for the multi-layer solid wood floor wear-resistant test standard is 500 Newtons of positive pressure under 100 turns, the wear quality is not more than 0.08 mg. The paint surface of the multi-layer solid wood floor is generally made of UV paint, and the surface is coated with a layer of porcelain powder, which is comparable to the aluminum oxide of the laminate floor. Take Bijia as an example: Bijia multi-layer solid wood flooring adopts advanced super-wear-resistant UV resin paint (American PPG) imported from abroad, and the produced flooring has good wear resistance, rub resistance, pressure resistance and scratch resistance. It is then treated with a special 9-side 2 (UV drying equipment 100% curing) special paint surface treatment to improve the overall surface quality of the paint.
4. Care and maintenance: Multi-layer solid wood flooring is as convenient as a laminate flooring, but the management of solid wood flooring is very troublesome. The most fundamental reason is because of the characteristics of their different wooden structures (see Stability one period). Solid wood floors are prone to dehydration and deformation. In the dry winter, humidifiers must be used to maintain humidity. However, in summer, the humidity is too high or it is easy to swell when exposed to water. In short, the solid wood floor is very arrogant, and a little careless during maintenance will cause problems such as squeezing, deformation and blasting. In addition, since the paint surface of the solid wood floor is rolled and lacquered, it is easy to explode after being impacted, and it is easy to make the lacquer surface grind after a long time of use (it is difficult to repair).
Graphite is an elemental element of elemental carbon. Each carbon atom is surrounded by three other carbon atoms (arranged in a honeycomb-like hexagon) to covalently bond to form a covalent molecule.
Since each carbon atom emits an electron, the electrons are free to move, so the graphite belongs to the conductor. Graphite is one of the softest minerals, and its use includes the manufacture of pencils and lubricants. Carbon is a non-metallic element that is located in the second periodic IVA family of the periodic table.
The specific use of graphite
1, for refractory materials, including refractory bricks, crucible, continuous casting powder, casting core, mold detergent and high temperature materials.
Magnesium carbon brick refractory material is the mid-60s, developed by the United States; in the world of magnesium carbon brick has been widely used in steel, and has become a traditional use of graphite. Aluminum carbon brick aluminum carbon refractories are mainly used for continuous casting, flat billet from the pipeline of the protective cover, underwater nozzle and oil well blasting tube.
Made of graphite and refractory crucible and its related products, such as crucible, curved neck bottles, plugs and nozzles, etc., with high fire resistance, low thermal expansion, melting metal process, by metal infiltration and erosion But also stable, good thermal shock stability at high temperatures and excellent thermal conductivity, so the artifacts and its related products are widely used in direct melting metal process.
2, steelmaking
Graphite and other impurity materials can be used as carbonizers in the steelmaking industry. Carburizing uses a wide range of carbonaceous materials, including artificial graphite, petroleum coke, metallurgical coke and Natural Graphite. In the world of steel-making carbon-based graphite is still one of the main uses of earth-like graphite.
3, for the conductive material
Graphite in the electrical industry is widely used as electrodes, brushes, carbon rods, carbon tubes, mercury rectifier cathode, graphite gaskets, telephone parts, TV picture tube coating and so on. Among them, Graphite Electrode is the most widely used, in the smelting of various alloy steel, ferroalloy, the extensive use of graphite electrodes. The graphite used in the electrical industry is very demanding on grain size and grade.
4, for wear and lubrication materials
Graphite is often used as a lubricant in the machinery industry. Lubricants are often not used in high-speed, high-temperature, high-pressure conditions, and graphite wear-resistant materials can be 200 ℃ a 2000 ℃ temperature and at a high sliding speed (loom / s) without lubricating oil work. Many of the equipment that transport corrosive media, widely used graphite materials made of piston rings, seals and bearings, they run, do not need to add lubricants, graphite milk is also a lot of metal processing (wire drawing, pull tube) when the good lubricant.
5, for corrosion-resistant materials
Graphite has good chemical stability. After special processing of graphite, with corrosion resistance, good thermal conductivity, low permeability and other characteristics, and widely used in the production of heat exchangers, reaction tank, condensate, combustion tower, absorption tower, cooler, heater, filter Pumps and other equipment. These equipment for the petrochemical, hydrometallurgical, acid and alkali production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.
6, for the atomic energy industry and the defense industry
Graphite has a good neutron deceleration performance, the earliest as a slowdown agent for atomic reactors, "uranium-graphite" reactor is currently used more of an atomic reactor. As the power of the atomic energy reactor in the slowdown material should have a high melting point, stable, corrosion-resistant properties, graphite can meet the above requirements.
7, for anti-scaling anti-rust materials.
Graphite can prevent boiler fouling. Tests have shown that adding a certain amount of Graphite Powder to the water prevents the surface of the boiler from scaling. In addition, graphite coated with metal chimneys, roofs, bridges, pipes can be anti-corrosion and rust.
8, graphite new use
1) Flexible graphite products. Flexible graphite, also known as Expanded Graphite, is the 1970s developed a new graphite products. 1971 US research success of flexible graphite sealing material, to solve the problem of atomic valve leakage, followed by Germany, Japan, France also began to develop production. In addition to this product has the characteristics of natural graphite, but also has a special flexibility and flexibility. Therefore, it is an ideal sealing material, widely used in petrochemical, atomic and other industrial fields, the international market demand growth year after year.
2) the production of semi-metallic friction materials. Since the 1970s, clutches and automatic liners have been widely used semi-metallic friction materials. Semi-metallic friction material is the graphite and metal powder, steel fiber, clay powder made of synthetic resin. These automatic lining can be used for high-speed equipment such as aircraft, trucks and off-road vehicles, and clutch pads.
Graphite
Carbon Graphite,Graphite Mineral,Monolithic Graphene,Graphite Crystal
Fengcheng Ruixing Carbon Products Co., Ltd , http://www.lnfcrxts.com