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Will the experts: acetic acid plate and the difference between acrylic, resin sheet
- Organic chemical chemical industry is so complicated, only conventional products conventional method, that is, specify the specific conditions. And that are colorless and transparent products it, designated conventional cellulose acetate plate, conventional acrylic plate, conventional thermosetting resin board. Among the three, you can see the degree of colorless translucent to the highest acrylic, followed by resin, acetic acid again. You can see heat conditions, heating to one hundred and fifty degrees above, acrylic will soften the flow, the resin will be soft but not flow, and then raise the temperature, acetic acid will melt. Look at the situation of specific solvents, dip chloroform (chloroform) wipe the surface, acrylic solution, slightly soluble acetic acid, resin unchanged. Of course, for the specific different varieties, the situation is very differents
What are the European E1 grade environmental standards?
- When we buy plates or furniture, we often hear such a term: E0, E1 and E2
So what is E0, E1 and E2?
Modern furniture and kitchen cabinets are widely used man-made sheet, in order to make the sheet more robust and durable, wood-based panels need to add moisture-proof agent and adhesive, which is the main source of free formaldehyde.
E0, E1, E2 are a formaldehyde emission limit level of environmental standards, the first E1, E2 these two standards produced in Germany, by the "EGGER" to develop, after the introduction of European standards, many domestic companies claim that the E0 standard In fact, Europe did not, the highest standards in Europe for the E (1/2).
Specific data are as follows: E2 ≤ 5.0mg / L, E1 ≤ 1.5mg / L, E0 ≤ 0.5mg / L. Meet the E0 standard household products, already belong to the international top environmental standards, formaldehyde emission is almost negligible.
E0 is produced in Japan, is the most stringent environmental standards, the equivalent of Europe's E (1/2), according to the plate of formaldehyde and other harmful substances to develop the content.
China's environmental standards for 10-30mg / 100mg, equivalent to E2 standards. E1 level is "can be untreated, completely harmless to humans and animals." E0 level is the spontaneous standard of some enterprises, rather than mandatory standards.
At present the world only Finland, Japan, the two countries to enforce the E0 standard. In China, to strengthen the implementation of the highest standards of the floor is E1, cabinet industry, the national standard only E2, only part of the high-end products are E1.
Therefore, if the purchase of Finland, Japan, the origin of the decoration products, that is, E0-class products, basically can be achieved directly to the standard.s
Millennium mill plate is good or the new millennium plate is good
- Anyway, both are the top ten brands of plates, you can see, Fuqing sheet personal feel betters
What brand plate is good
What is the difference between splicing and fingering of wood panels?
- The ends of the two woods are made of teeth, and the middle is made of glue, and it is also understood that the two woods are crossed together like a finger.
Splicing refers to the side of the board for gluing.
Under normal circumstances, the stitching is used to access the width, the finger is used to make long.
Need to stitch the wood does not require special processing, and finger of the board need to be processed at the end of the board into a tooth shape.s
What kind of timber is the high grade guitar?
- General top or advanced guitar wood selection surface is not particularly large, generally fixed in several kinds of wood, the production of guitar is very much but in the high-grade guitar selection, the available is not particularly much (in addition to some special Creative thinking of the producer's whim). Here I give you a closer look:
Spruce spruce sound grain good, penetrating, cool and bright. It is the first choice for most guitar panels, which is made of German-made (Sicilia spruce) and Canadian (Inman Spruce), with high density, woody charm, hard and easy to process. The Representative Brand: H.Romannillos, Hauser, Martin, Taylor, Gibson.
Cedar cedar sound deep atmosphere, strong sense of sticky, soft and warm. It is good for American-made (western pine) and Canada (Ingersel Cedar), high density, fine grain and delicate, easy to process, and now many guitar makers prefer wood (easy to process). ...). On behalf of the brand: Greg.Smallman, Kenny.Hill, Takamine, King of Recording.s
What are the main types of office furniture?
- Common furniture with the plate varieties are: solid wood, fiberboard, particleboard, blockboard, plywood and so on. At present, the manufacture of office furniture is mainly used are: fiberboard and particleboard. Low-grade office furniture generally use particleboard, and medium and high-grade office furniture generally use fibreboard. Fibreboard is divided into high density fiberboard (density> 0.8 / cm3), medium density fiberboard (0.5 g / cm3 ≤ density ≤ 0.8 g / cc), low density fiberboard (density <0.5 Gram per cubic centimeter). High density fiberboard due to high density, difficult processing, and easy to nail, the installation of accessories burst; and low density fiberboard due to low density, large gap between wood fibers, easy to water swelling, resulting in surface cladding off, and even the plate disintegration, so the second The use of office furniture are less. The MDF (medium MDF), with the surface smooth, the internal structure of fine, good processing effect, with strong resistance to deformation and load-bearing capacity, And the plate holding nail ability, can be achieved many times disassembly, as in the high-end office furniture of choice. Sunlong's office furniture is used in the manufacturer's custom-made density of up to 0.76 grams per cubic centimeter of the MDF (generally medium density fiberboard density of 0.64 grams per cubic centimeter or so).s
How to distinguish between true and false Qingdao wood of the big core board
- Go to Qingdao wood shop to buy, E0 level white willow face is very good, no seam and radiation Tong, grasping nails, no deformation,s
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