Category: 12 inches cut off wheel
By xzbbvfvbh, 2019-02-25
wholesale high efficiency laser grade optical filter manufacturer ZcEqyvM is currently working on the factors that restrict the development of CdTe thin-film solar cells. The high-density (about 3%) anode mud is first sulphated at 250 °C, and then oxidized at about 700 °C. Selenium believes that the above problems will be solved one by one, so that cadmium telluride thin film batteries become one of the new energy components of the future society. Other enamels can also be used as colorants for glass and ceramics. By adding bismuth-containing materials, glass and ceramics of different colors can be produced. It is also possible to create a layer of fine black on the surface of silverware, lead and brass; The enamel can be made pink. Compared with ordinary silicate glass, bismuth glass has the characteristics of large refractive index, low deformation temperature, high density and infrared transparency. Laser Crystal Manufacturers Optical crystals are excellent procurement customizable optical filter parts materials with excellent acousto-optic properties and high natural abundance of 130te and double beta decay. Optical crystals are now widely used in a variety of acousto-optic devices, such as acousto-optic deflectors, acousto-optic modulators, and acousto-optic tunable harmonics. Acousto-optic devices made of yttrium oxide have an order of magnitude improvement in resolution under the same aperture, and have the advantages of fast response, small driving power, high diffraction efficiency, and stable and reliable performance. Therefore, wholesale custom UV and IR grade optical prism is a kind of acousto-optic device material with broad application prospects, especially acousto-optic modulator and acousto-optic harmonic device, and its application in optical computing, optical communication and light microscopy imaging technology is developing rapidly.
By xzbbvfvbh, 2019-02-22
In addition to optical communication, industrial laser and electro-optic are important markets for nonlinear optical VUV, UV and IR grade CaF2 optics applications. In recent years, it has maintained a market growth of 1520% per year. Among them, BBO and KTP crystals are the fastest growing customized large size and special shape CaF2 optics varieties in the field in recent years. Prospects are good. The field of medical solid-state lasers is another important market for nonlinear optical crystals. The main applications are KTP, KDP and BBO crystals. CLBO will also be widely used. Due to the rapid development of lasers in the medical industry, the demand for nonlinear optical crystals such as KTP has also increased rapidly. According to the latest report from the research firm BCC (Business Communications Company, Inc.), the global market for nonlinear optical crystals reached US$ 851.61 million in 2005. It is expected to expand to an annual average growth rate of 17.1% in 2009. About $1.656 billion. Among them, LiNbO3 for optical communication accounted for 24.5% of the market for nonlinear optical crystal materials in 2005 and 29.6% in 2009. KTP, KDP, DKDP, BBO, CLBO, LBO and other crystals used in the laser and electro-optic fields accounted for 18.5% of the market for nonlinear optical crystal materials in 2005, and the AAGR (annual average growth rate) for procurement high efficiency optical window was 5.4%. The AAGR of other crystals is 8% in total.
By xzbbvfvbh, 2019-02-19
There is a very interesting kind of VUV, UV and IR grade CaF2 optics that produces different charges at both ends when you squeeze or stretch it. This effect is called the piezoelectric effect. A crystal that produces a piezoelectric effect is called a piezoelectric crystal. Crystal (α-quartz) is a well-known piezoelectric crystal. Common piezoelectric crystals are: sphalerite, cubic boron, tourmaline, zincite, GaAs, barium titanate and its derived structural crystals, KH2PO4, NaKC4H4O6·4H2O (rose salt), sugar and so on. Piezoelectric crystals are electronic materials that are second only to single crystal silicon. They are used to manufacture electronic components for selecting and controlling frequencies. They are widely used in various fields of electronic information industry, such as color TV, air conditioner, computer, DVD, and cordless communication. Especially in high-performance electronic devices and digital devices, the application is expanding. The low-etching tunnel density piezoelectric crystal is an essential material for the production of SMD frequency chips and mobile phone frequency chips. The main types of piezoelectric crystal products are: Z rod, Y rod, thickness sheet, frequency sheet.
Piezoelectric effect of customized large size and special shape CaF2 optics Some crystals, when subjected to an external force in a certain direction, will have a polarization phenomenon inside, causing the charged particles to be relatively displaced, thereby generating charges of opposite magnitude and opposite signs on the crystal surface; when the external force is removed, it is restored to no Charged state. The amount of charge generated by the force of the crystal is proportional to the amount of external force. This phenomenon is called the piezoelectric effect. Conversely, if an electric field is applied to the crystal, the crystal will mechanically deform in a certain direction; when the applied electric field is removed, the deformation will also disappear. This phenomenon is called the inverse piezoelectric effect and is also called the electrostrictive effect. Principle of piezoelectric effect The cause of piezoelectricity is related to the crystal structure. The positive and negative charges centered on each other are pressed and separated to form an electric dipole, so that the ends of the procurement high efficiency optical window in a specific direction have different amounts of charge. Common features of piezoelectric crystals: crystal point groups (symmetric) have no center of symmetry. Among the 32 point groups of the crystal, 21 point groups do not have a symmetry center, but the crystal of the point group 432 does not exhibit piezoelectricity, so that the crystals of 20 point groups have piezoelectricity.
By xzbbvfvbh, 2019-02-15
Optical components use a laser beam to mark permanent surfaces on a variety of different materials. The effect of marking is to expose deep substances by evaporation of surface substances, or to "engraving" traces by chemical or physical changes of surface substances caused by light energy, or to burn off some substances by light energy to show the desired etching. Patterns, text, barcodes and other graphics. Widely used in integrated circuit chips, computer accessories, industrial bearings, watches, electronic and communications products, aerospace devices, various automotive parts, home appliances, hardware tools, molds, wire and cable, food packaging, jewelry, tobacco and many other fields and graphics Text markup, as well as high volume production line operations. Advantages of custom infrared spherical/aspherical/cylindrical Germanium lenses: 1. The laser is used as the processing means, and there is no processing force between the workpiece and the workpiece. It has the advantages of no contact, no cutting force and small heat influence, which ensures the original precision of the workpiece. At the same time, it has a wide adaptability to materials, and it can produce very fine marks on the surface of many materials and has excellent durability. 2. The space control and time control of the laser are very good. The degree of freedom of the material, shape, size and processing environment of the processing object is very large, especially suitable for automatic processing and special surface processing. And the processing method is flexible, which can meet the needs of laboratory-style single-item design, and can also meet the requirements of industrial mass production wholesale large size infrared Silicon optics. 3, laser scribing fine, the line can reach the order of millimeters to micrometers, the marking and modification made by laser marking technology is very difficult, and it is very important for product anti-counterfeiting. Recommended reading: UV optics 4, laser processing system and computer numerical control technology combined to form an efficient automated processing equipment, can play a variety of text, symbols and patterns, easy to use software to design marking patterns, change the content of the mark, to adapt to modern production, high efficiency, fast-paced requirements . 5, laser processing has no pollution source, is a clean and pollution-free high environmental protection processing technology. Shenzhen Laser Equipment Co., Ltd. mainly operates: laser lens, CO2 focusing mirror, complete set of optical components, including: optical components, galvanometer, laser power supply, galvanometer, focusing mirror, lens, laser power supply customized plano/spherical/aspherical/cylindrical ZnS optics
By xzbbvfvbh, 2019-02-12
Optical component accessories have become extremely common in industrial applications. How do you choose the right and most affordable laser equipment for many laser devices? First, the principles to be followed in the purchase of special high precision optical lens manufacturer/supplier components: Optical component technology has many valuable features. However, depending on whether a product is suitable for adopting this technology, the following principles should be followed: (1) It can't be solved by other existing methods, and it can only be solved by laser processing; (2) It can be solved by other existing processing methods, but if the laser processing method is adopted, the product quality can be greatly improved, the production efficiency can be improved, and the economic and social benefits can be significantly increased; (3) Fully consider the matching links in the machining process related to laser processing; (4) Pay attention to the application of processing technology combined with laser processing and conventional processing, in order to make full use of their respective strengths; (5) In practical applications, if the economy is not tight, it is recommended to purchase the import configuration, because some domestic technologies are still not up to standard, the performance of foreign configuration machines is stable, and the after-sales maintenance is small, which greatly improves the work efficiency. Second, the specific requirements when using optical components: (1) The spherical/aspherical/cylindrical/paraboloid optical lens component outputs good beam quality, including mode and mode stability; (2) Whether the optical component output power is large enough (this is the key to speed and effect), whether the energy is stable (usually requires 2% stability, and in some cases 1%, in order to process the desired effect); (3) Optical components should have high reliability and should be able to work continuously in harsh industrial processing environments; (4) The optical component itself should have good maintenance, fault diagnosis and chain function, and the downtime should be short; (5) The operation is simple and convenient, the control key function is clear, the illegal operation can be rejected, and the procurement high efficiency thin-film multilayer optical filter component is protected from damage. In addition, price is also a key factor to consider.
By xzbbvfvbh, 2019-01-24
The cutting sheets are made of high-strength resin and preferably special abrasives, which allow for high linear speeds of more than 50 m/s, which are not brittle. The cutting is sharp, the cutting heat is extremely small, and the heat of the sample is shallow, thus minimizing interference. Therefore, high performance cutting disc are widely used in machinery, automobile, shipbuilding, metallurgy, chemical and other industries, and can also be used in iron decoration and equipment repair of modern houses and factories. Professional grinding of general metal, stainless steel, broken fire steel, tool steel construction metal, cast gray iron, hard cast iron metal. With high tensile strength, impact resistance and flexural strength, it is widely used in the production of ordinary steel, stainless steel and non-metal materials. Excellent materials and exquisite craftsmanship ensure high cutting efficiency and optimum for different material workpieces. Economic effect. What is the difference between a cutting piece and a saw blade? The cutting piece and the saw blade are both a tool for cutting materials. There is a fundamental difference between the two. Let's explain to you the two kinds of cutting pieces today, so that everyone can understand more clearly, as follows: The thin abrasive cutting disc for metal belongs to the grinding wheel, and is made of abrasive, binder resin or the like for ordinary steel, stainless steel metal and non-metal sheets. The use of glass fiber and resin as a reinforced bonding material, with high tensile, impact and flexural strength, excellent materials, superb technology, to ensure high cutting efficiency and best economic results for different material workpieces. A saw blade is a general term for a circular tool for cutting solid materials. Saw blades can be divided into: diamond saw blades for stone cutting, high-speed steel saw blades for metal material cutting (not embedded with carbide tips), for solid wood, furniture, wood-based panels, aluminum profiles, plastics, Carbide saw blades cut from plastic steel.
By xzbbvfvbh, 2019-01-21
In recent years, scholars from various countries have successively carried out research work on the application of special processing methods to trim metal bond diamond grinding wheels, mainly including electrolytic dressing method and electric spark trimming method. The electrolytic dressing method is fast, but the shaping precision is not high; the electric spark dressing method has high precision, can be shaped and sharpened, but the shaping speed is slow; the composite dressing method has electrolytic sparking composite trimming method and mechanical chemical compound trimming method. Etc., the dressing effect is better, but the system is more complicated, so the problem of the finishing of the sintered diamond wheel is still not well solved. In addition, because the thin flat cutting disc manufacturing process determines the surface morphology is random, the geometry, distribution and cutting edge of each abrasive grain are inconsistent, so only a few high cutting edges are cut to the workpiece during grinding, which limits the grinding quality grinding. The efficiency is further improved. Electroplated diamond wheel advantages: 1 The electroplating process is simple, the investment is small, and the manufacturing is convenient; 2 no need to trim, easy to use; 3 single-layer structure determines that it can reach a very high working speed, which has been as high as 250~300m/s abroad; 4 Although there is only a single layer of diamond, there is still enough life; 5 For the precision requirements of the roller wheel, the only manufacturing method for plating. Due to these advantages, high-speed, ultra-high-speed grinding of electroplated grinding wheels occupies an undisputed dominant position. Electroplated diamond grinding wheel defects: there is no strong chemical metallurgical bonding between the plating metal and the substrate and the abrasive bonding surface. The abrasive material is actually only embedded in the inlaid coating metal, so the holding force is small, the diamond particle load is heavy, and the grinding is easy to fall off. (or the coating is peeled off into pieces), resulting in overall failure; in order to increase the holding force, it is necessary to increase the thickness of the coating. As a result, the bareness of the abrasive grains is reduced, the grinding wheel is prone to blockage, the heat dissipation effect is poor, and the surface of the workpiece is easily damaged. At present, the domestic electroplated grinding wheel manufacturing has not yet achieved the optimal design of the cutting disc for stainless steel according to the processing conditions. The inherent disadvantages of the single-layer electroplated diamond grinding wheel will inevitably limit its high-efficiency grinding application.
By xzbbvfvbh, 2019-01-14
The cutting piece is selected too hard, the blunt abrasive grains are not easy to fall off, the high performance cutting disc is easy to block, the grinding heat is increased, the workpiece is easy to burn, the grinding efficiency is low, and the surface quality of the workpiece is affected; the cutting piece is selected too soft, and the grinding grain is still sharp. When it falls off, it increases the loss of the cutting piece, and it is easy to lose the correct geometry and affect the accuracy of the workpiece. Therefore, the selection of the hardness of the cutting piece should be appropriate, and should be comprehensively considered according to the contact area of the cutting piece and the workpiece, the shape of the workpiece, the way of grinding, the cooling method, the type of bonding agent of the cutting piece and the like. 1. When grinding soft materials, choose a harder cutting piece. When grinding hard materials, choose a soft cutting piece. 2. When grinding soft and tough non-ferrous metals, the hardness should be selected to be softer; 3. Grinding materials with poor thermal conductivity should be selected as softer cutting blades; 4. When the end face grinding is more than the circumferential grinding, the hardness of the cutting piece should be selected softer; 5. Under the same grinding conditions, the hardness of the cutting piece with the resin bond is 1~2 lower than that of the ceramic bond cutting piece; 6. When the cutting speed of the cutting piece is high, the hardness of the cutting piece can be softly 1~2 small; Cutting piece balance Due to various reasons in the manufacture and installation of the dicing sheet, the center of gravity of the dicing sheet often does not fit with its center of rotation, which causes the grinding wheel to vibrate at high speeds, which affects the processing, and causes the rupture of the dicing sheet when it is severe. The machine tool is damaged, so the cutting piece must be statically balanced after it has been mounted on the flange. After the cutting piece is mounted on the flange, the flange is placed on the mandrel and placed on the gimbal rail. If it is unbalanced, the heavier part of the cutting piece will always turn to the bottom, move the balance block position inside the ring tip of the flange, balance the center of the cutting piece, and repeat until the cutting piece is free on the guide rail. The position can be still, and the cutting piece reaches a static balance. When installing a new cutting piece, the thin abrasive cutting disc for metal is statically balanced twice. After a static balance, install the grinder and trim the shape of the cutting piece with a diamond pen, then remove the cutting piece and perform a static balance before installation.
By xzbbvfvbh, 2019-01-11
Ultra-thin hard-to-wear material characteristics Ultra-thin hard-wearing material features: (1) The surface of the workpiece is easily burned Such alloy steel has high hardness, large directionality, large chip deformation, large high quality cutting disc supplier and high output. Because of the poor thermal conductivity of the material, the grinding zone generates a large amount of heat and cannot be quickly transferred out, resulting in a particularly high temperature in the grinding zone. It is prone to surface burns. (2) Super thin slices are easy to block When the material is ground, the chips are easily adhered to the surface of the ultra-thin sheet, so that the ultra-thin sheet loses the cutting ability and is not easily removed from the abrasive grains. The ultra-thin sheet is clogged, the ultra-thin sheet is rubbed against the workpiece, and the grinding temperature rises sharply to cause the workpiece to burn. (3) The workpiece is easily deformed Grinding these hard-to-wear materials is easier to deform than other steels. Due to the strong work hardening tendency of alloy steel materials, residual stress is easily generated on the surface of the workpiece during processing. In During the post-processing, the workpiece is deformed due to changes in the stress state. For example, the stainless steel slender shaft is ground and turned into a waist drum shape and twisted; the sheet workpiece is warped; the diameter of the workpiece is worn, and an ellipse is easily generated. (4) The chill phenomenon is serious Due to the severe extrusion and friction phenomena in the grinding, the work hardening tendency of the alloy steel material is enhanced. Therefore, the chilling phenomenon of grinding the surface layer is more serious. It also causes annealing on the surface of the workpiece. Low surface roughness for grinding ultra-thin sheets: (1) Selection of abrasives Both corundum and cast iron parts are selected from corundum super thin sheets. Corundum abrasives have good toughness and can maintain contoured micro-blades. In corundum abrasives, white corundum and chrome corundum are more common; the use of single crystal corundum is better, which can improve the durability of ultra-thin sheets. (two) the choice of granularity In precision grinding and ultra-fine grinding, F60-F80 coarse-grained ultra-thin sheets are usually used, and after fine finishing, surface roughness of 0.08-0.025 can be obtained. The advantage is that the productivity of the ultra-thin particle size is high, the supply of the ultra-thin sheet is easy, and the disadvantage is that it is easy to cause defects such as pulling, and measures must be taken to overcome it. (3) Choice of hardness The low surface roughness grinding only removes a layer of micro-children's metal, the grinding load is concentrated on the micro-blade, so that the abrasive grains are not detached as a whole, so the hardness should be slightly softer than the hardness of the 14 inches cutting disc.