Q:What are the CTP plates?

Photopolymerized media This type of plate is usually made of aluminum, photosensitive layer and surface layer. The photopolymerizable layer is mainly composed of a polymerized monomer (+ oligomer), an initiator, a spectral sensitizer and a film-forming resin. The initiator is widely used as a multi-initiator system with high quantum efficiency. The effect of the spectral sensitizer is to effectively extend the range of the initiator to the luminescence wavelength region of the laser. It can now extend to 488nm (ion laser) and 532nm ( Multiplied YAG laser). The role of the surface layer is mainly the atmosphere of oxygen molecules separated, to avoid its into the photosensitive layer, in order to improve the photosensitive layer of the chain growth efficiency, resulting in high sensitivity. As a result of these effective measures, the photopolymerization of the direct plate of the sensitivity has been greatly improved, the minimum imaging exposure has dropped to about 10μJ / cm2, second only to the silver salt type of direct plate, and this plate structure Simple, resolution, printing rate and post-processing and conventional PS version similar or even better. Since the range of intrinsic photoreactivity of most efficient initiator systems is in the ultraviolet region and the photometric range extends to the range of the emission wavelength of the UV-LD laser, the photopolymerized direct plate will become the next generation of UV direct Preferred system, has a very good development prospects.

Q:The advantages and disadvantages of the plate frame, what brand is better?

Material: high-tech plastic memory sheet manufacturing. Design: tailored for the majority of fashion and the pursuit of quality students. Features: simple and neat design style, the overall performance of a stable one Face, using the right color process. Emphasis on mirror legs On the three-dimensional changes. Accessories: mirror feet and feet perfect fusion, like totally natural, the lens shape is very personalized. Performance characteristics: a certain degree of flexibility, when a little hard to bend or tighten after relaxation, shape memory sheet will be restored. Cut the frame with a cellulose acetate sheet. The characteristics of the plate is not easy to burn, relatively light, almost no exposure to ultraviolet light and color, hardness greater gloss better, durable, easy to heat processing, style is more beautiful, easy to wear after deformation.

Q:Who has a natural marble sheet testing report template?

Main Test Products Main Testing Products Granite Granite Marble Marble Quartz Stone Quartz Limestone Slate Roofing slate Complex veneer thin stone Artificial marble Artificial quartz stone Artificial quartz stone The following are the same as the " Main Testing Scope Visual dimensions and dimensions Petrographic analysis Gloss Gloss Water absorption Density Flexural strength Compressive strength Thermal shock resistance Abrasion resistance Slip resistance Coefficient of friction Coefficient of friction Frost resistance Fire to Reaction Shore hardness Mohs hardness Mohs hardness Acid resistance Radioactive radioactivity

Q:What is the actual thickness of all the thickness of the acrylic sheet?

Acrylic panels are usually made of 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm and above. Acrylic board: Acrylic board, in fact, is a plexiglass plate. Acrylics Acrylics and Acrylic Acrylic Acrylic Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Acrylics Including the monomer, sheet, pellets, resin and composite materials, the acrylic plate from the methyl methacrylate monomer (MMA) polymerization, that is, polymethyl methacrylate (PMMA) sheet plexiglass, "organic Glass "is derived from the trade name" Oroglas "(a PMMA board) from" Organic Glass "(ie, plexiglass). But in recent years because all by the transparent plastic such as PS, PC, etc. are collectively referred to as plexiglass. Acrylic, also known as special treatment of plexiglass, plexiglass replacement products, with acrylic production of light boxes with light transmission performance, pure color, rich colors, beautiful formation, taking into account the two effects of day and night, long life, does not affect the use of Features.

Q:Why construction of temporary building blocks in construction technology?

Support temporary square wood is to set up by the wall. Temporary square wood above the wood and the bottom of the wood. The top of the wood can be directly on the top of the line in the top of the structure of the ground, the bottom of the wood can be about 100mm from the ground floor, between the upper and lower wood every 1.5m or so stand supporting the side of the wood, and wooden wedge will be between the lower wood and supporting wood between the wedge tight. Temporary square wood support, you can install partition board.

Q:Circuit board plate classification, distinction between advantages and disadvantages

The main criteria for substrate materials: National standards: China's national standards for substrate materials GB / T4721-47221992 and GB4723-4725-1992, China Taiwan's copper clad plate standard for the CNS standard, is based on the Japanese JIs standard modeled, published in 1983 The International standards: Japan's JIS standards, the United States ASTM, NEMA, MIL, IPc, ANSI, UL standards, the British Bs standards, Germany DIN, VDE standards, France's NFC, UTE standards, Canada CSA standards, Australia's AS Standards, the former Soviet Union's FOCT standards, international IEC standards.

Q:What is the quality of the snowboard?

Chevrolet board than the ordinary lunch box bubble to more than five times, relatively hard, the quality of the general, generally used in the more low-end place. Specifically you ask what the quality is not clear, you know these

Q:Bathroom and kitchen ceiling selection of what kind of plate is better?

The effect of using a light blue ribbon pattern will be better.

Q:How to introduce plate-type furniture plate?

Furniture: solid wood furniture and sheet metal furniture. Soft furniture and stainless steel do not say. Plate furniture are: medium density fiberboard or particleboard they are made of glue and cold pressed from. Surface paste veneer, trimethine ammonia kraft paper, brush paint. ?? To the mall to buy a furniture are generally divided into two kinds: 1 is made of medium density fiberboard .2 is made of particleboard. (Granular wood pressed from the system)