Granite is one of the hardest natural stone types.In order to cut granite,it is necessary to use a more rigid material than granite.Improper use of granite cutting machine will not only destroy the granite,but also to the construction were injured.
1、the hardness
The hardness of the material should be in control of other materials in the Mohs hardness range.Granite hardness of 6,which makes it harder than most materials.Diamond is the hardest material in the world,it is the highest hardness value of 10.
2、the tool
Few tools have cut granite hardness.Diamond blade tip is the most widely used cutting tool granite.Carbide drill for drilling through granite.
3、the cost of
Can cut granite tools are not cheap.Quality diamond blades may cost more than 400 U.S. dollars,specific to the size and blade manufacturers needed.A set of high-quality carbide drills also need to spend hundreds of dollars.
4、practicality
Most home improvement market and online stores will sell granite cutting tools.Saw blades and drill bits there are many specifications to choose from,each specification applies to a specific application requests.
5、safe
Recommend using the supplied Blade guards saw cutting granite.Blade guards can prevent dangerous gravel flying everywhere,while also providing a protective barrier to prevent inadvertent slip into by cutting path.And do not forget to bring goggles,dust masks,wearing protective equipment.
Granite beautiful, durable, very hard. In ancient times, if there is mining, processing equipment and technology, it is certainly more popular than marble.
Granite because often contain other minerals such as hornblende, and mica, and present a variety of colors, including: brown, green, red and black and so common. Because it is the crystallization process is very slow, it's like a Rubik's cube crystal intertwined as one, so it is very hard. It is the same house as durable, can not afford debris, easy to scratch, not afraid of high temperatures. Regardless of color or light, as long as there is some common sense conservation, will not fade or darken. He almost free from contamination, high gloss polished surface, bringing a variety of weather almost all impurities not adhere.
Mining granite general use rope sawing. The emergence of new technology-intensive row eye and flame spray method. Flame spray method mined stones kerf neat, not born invisible injury, high production efficiency. Picked stones called after crude whole blocks, and then hit a wedge or artificial drilling and bridge saw machine, material specifications to obtain the desired block size, the plate; stone with milling machine or lathe machining, becoming cylindrical or arc; finally cut chisel artificial coarse and fine rock-like pattern, or by machine grinding, polishing, the surface of the crystal bright. Granite does not pollute the environment. Synthetic materials is often accompanied by bad or even toxic byproducts, period of use in the building needs to be replaced several times (each time back there handling problems). Granite without replacement, because it is very durable.
In addition, the granite is very practical, can be made into a variety of surfaces - polished, honed, fine grinding, fire, water knife handle and sandblasting. Because granite often containing radioactive material, the use of granite when the need to measure the radiation level, and then confirm it using the occasion.
The first use of manufactured stone house is Greek. Since then, natural stone mining program has not changed much. Mined from the mines is now under chunks of stone, and then press sheet or plate to buy, and finally, of course polishing for processing purposes in accordance with stones. Granite general is in accordance with this procedure.
Over the years most of these methods remain the same, but the type of machine has undergone a dramatic change. With the development of science, efficient and time-saving machines replaced the old machine. Granite production process is important to use the three basic machine that granite bridge saw, polishers and Router machine.
Saw
Previously saw the stone cut with a straight plate, now using a diamond wire saw cutting. The machine has a wire, is fixed above the diamond. Diamond is the hardest stone itself, so it can quickly be cut. Then the granite bridge saw cut the desired size.
Polishing Machine
Polishing machine can make the granite surface becomes smooth, like a mirror. The mouth is provided with a rotating abrasive polishing machine, according to the different effects of the surface of the material is different, excellent abrasive polishing material can be improved smoothness.
Router Machine
Router machine is used to design the stone surface pattern. Different designs to create a different edge. Router machine has a rotating blade, fixed rotary diamond knife above, you can create the desired design.
1, mixing console can not start? Check: whether to start the air compressor and compressed air pressure is normal; overhaul with a key on the host and host protection switch emergency stop switch is turned on; operating table emergency stop switch is turned on; mixing console air switch is turned on; host start and stop signals are normal.
2, after the mixer starts normally, press the start button on the operating table inclined belt, inclined belt does not move? Check: Belt emergency stop switch is turned on; belt air switch is turned on; transmission with start, stop signal is turned on; washing machine button is pressed.
3, in the automated production process, the aggregate weighing is completed, no discharge, the system stops running? Check: to be put in place to close the hopper switch is not sensitive to; aggregate weighing whether to have a discharge signal meter output; whether the belt starts; fine aggregate, said feed door is not fully closed position.
4, batching station stone pneumatic feed material not open the door card, check: batching station pneumatic doors and doors with large gaps small gap doors, large gaps door stone tablets of the gap is greater than the general gap, and thus will not appear card material. A small gap in the door of their gap generally 5-10mm, when the stones below 10mm card into the gap, it is difficult to pneumatic door stuck. But when the dosing station period of time, the discharge port aggregate wear, when the gap is worn to 20-30mm when larger stones into the gap at this time, the door opening process, the gravel is very easy to get stuck, so that the door can not pneumatic turn on.
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Concrete mixer is the cement, sand and gravel aggregate and water are mixed and mixed into the concrete mix machinery. Mainly by the mixing tube, feeding and unloading mechanism, water supply systems, the prime mover, transmission, chassis and supporting devices and other components.
Divided by the intermittent nature of the work (batch) and continuous; divided by mixing principle and compulsory self-loading; divided by installation of fixed and mobile; tipping points by way of the material and non tipping type; press the mix in the form of cylindrical structure divided pear type, drum drum, double cone, disc vertical shaft and horizontal axis circular groove and so on.
Blender maintenance: Maintenance of the body clean, remove dirt and obstacles on the body; checking oil and lubrication circuits and control equipment at the press requires filling oil; work before class, add water while stirring cylinder idling 1-- to 2min, while checking the clutch and brake work reliability; concrete mixer during operation, inspection should always listen to the motor reducer, transmission gear noise is normal, the temperature rise is too high; end of class work , it should be carefully cleaned concrete mixer.
With the development of concrete materials and construction processes, and have appeared in many of the new structure of concrete mixers, such as steam heating mixer, supercritical speed mixer, sonic mixer, without stirring blade wobble plate mixer and secondary mixing concrete mixer and concrete mixer parts.
Refers to a dedicated mixer truck parts metal accessories in general.Mainly includes:lifting the bucket wheel,mixing arms,blades,hopper stopper,linings,seals,oil pressure gauge,special bearings.
Mixer means for transporting concrete building dedicated truck;Because of its shape,is also often referred to as snail car.Such trucks are cylindrical device on the mixing tube to carry concrete mixed.During transport drum rotates always kept stirring to ensure that the carriage will not be solidified concrete.After the delivery of finished concrete,usually rinse the mixing tube inside,to prevent the hardening of concrete space,so that the volume of the mixing tube is less and less.
Common accessories to enhance the bucket wheel, mixing arms,blades,hopper stopper,linings,seals,gear and other accessories butterfly valve gasket,oil pressure gauge,special bearings,V-belts,filter (pulse),filter (triangle),siren warning lights,red hose (flexible connecting tube),flow valve assembly,tee,high pressure fittings,water,said sensors,sensor admixtures,cement sensors,silo sensors,host pressure solenoid valve (import ),host pressure solenoid valve*(domestic),pressure regulators,host collecting filter,air compressor filters,discharge gate signal switch,electric control valve,cutting ring glasses,plates,gate valve assembly so,abrasion strip,wear round,roller,shaft head shell,cover and so on.
Roller surface contact stress at work is very big,so the quality of the roller and the bearing's life and the use of performance has an important influence.Practical application shows that the weakest parts in roller bearing is.
According to the different shapes can be divided into drum roller,roller taper roller,spherical roller and needle.
Although the shape of the roller is varied,but the same in the machining process,the general process for:metal pipe forming (cold heading,turning,forging)-or face soft grinding diameter-heat treatment quenching and tempering-end-grinding ball base (products when required)-coarse grinding diameter-fine grinding diameter-end mill diameter-grinding crown(products when required)-superfinishing diameter(Ⅱ magnitude precision roller). Roller commonly used mechanical processing equipment are:the material transformation equipment,molding equipment,end face grinding equipment,grinding equipment,diameter of material transformation equipment is the auxiliary production equipment.
With the development of the theory of rolling bearing design,the structure of the roller also have new design,such as roller,roller with crown bus for logarithmic curve on the surface of the end face to the ball for cylindrical roller.The new design can improve the stress of roller,improve the service life of the bearing.At present,in view of the above design of roller processing and new technologies are:
Lean superfinishing method:it is developed on the basis of the ultra precision rectilinear,in changing the inclination of the ultra precision roller superfinishing,conscious of more than the two end of roller,forming outside diameter crown or logarithmic curve.
Cylindrical roller base ball grinding method of selecting such assignment:it was borrowed from the processing principle of grinding spherical roller bearing outer ring of selecting such assignment.
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General properties of PET resin is milky translucent or colorless transparent body,the relative density of 1.38,a light transmittance of 90%.PET barrier material belonged to the middle of the O2 permeability coefficient of 50 ~ 90cm3·mm/(m2·d·MPa),for CO2 permeation coefficient of 180cm3·mm/(m2·d·MPa).PET water absorption of 0.6%,a large water absorption.
High tensile strength of the mechanical properties of PET film,comparable with aluminum foil,is nine times the HDPE film is three times the PC and PA membranes.PET enhanced creep resistance is small,an excellent fatigue resistance (better than reinforced PC and PA),a good wear resistance and abrasion resistance.Mechanical properties of PET are less temperature.
Heat resistance thermal properties of pure PET plastic is not high,but the enhancement significantly improve the mechanical properties at 180 ℃ is better than PF when the laminate is heat-resistant reinforced thermoplastic engineering plastics better varieties.PET heat aging resistance,brittle temperature of -70 ℃,while at -30 ℃ still has certain toughness.PET nonflammable,yellow flame,there dripping. Although the polarity of the electrical properties of PET polymer excellent in electrical insulating property,but,at high frequencies still well maintained.PET's corona resistance is poor,not for high voltage insulation;electrical insulation affected by temperature and humidity,and greater humidity.
PET environmental properties containing an ester bond,and not water vapor at high temperature conditions,an acid and a base.PET organic solvent such as acetone,benzene,toluene,trichloroethane,carbon tetrachloride and the stability of oil,some of the oxidant such as hydrogen peroxide,sodium hypochlorite and potassium dichromate,also have a higher resistance.PET excellent weatherability,long-term for the outdoors.
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Folding box is a kind of packaging products,using blunt scissors film punching and shearing folding box after embryo,reoccupy adhesive bonding and become a box shaped products Main raw material:PVC,APET material,PP material,PS material,etc.
Adhesive methods mainly include high frequency glue,glue adhesive,fasteners,three.Takanami advantage is component surface neat and no leak phenomenon,but the cost is higher. Glue adhesive is by far the most common method,there are two kinds of principle,the first is to use itself is glue adhesion.But this method at the edge of the folding boxes of adhesive glue water damage is more,and there will be white or loose phenomenon.The second is to use the chemical character of the glue,the glue can decompose folding box of the surface of the film,when the decomposition of two pieces of film together,will merge into one.The bonding surface transparency is very high,and a film without much difference.Buckle nail glue is at the edge of the adhesive shearing of the interlocking nail,when glue,can be nailed the mutual a fastening.
Xiamen XieXin Plastic Products Co., Ltd,is a professional clear folding boxes supplier.It is founded in 2006,but the founder and the core management team have more than 10years plastic box industry work experience,accumulate rich experience in such field.
Xiamen XieXin Plastic Products Co., Ltd in the production of PVC clear boxes made of high quality high transparent PVC anti-static function, bag not adhesion, easy to use; PVC transparent bags of fine workmanship, no burrs, it does not hurt the hand, zippers, smooth and durable; PVC transparent bag sealing pressure closely, is not easy to fracture.
The clear PVC boxes are inexpensive and in the same plastic box, PVC clear boxes is the most preferential price, and good environmental performance, export product packaging is the preferred. Various cosmetics box, gift box, hardware box, etc., are made of PVC. The clear PVC boxes is a kind of plastic boxes, is made by a PVC membrane. PVC transparent bag production and processing method is usually high frequency hot pressing or thread for sewing. High-frequency hot pressing the clear PVC boxes, PVC film after blanking points sliced, need printing screen printing first, then by high-frequency hot pressing machine, general need to custom-made copper production. Extrusion of PVC transparent bag can be compressed into PVC sleeve bag, PVC bag, embedding PVC.
Xiamen XieXin Plastic Products Co., Ltd,is a professional enterprise engaged in development and production of clear plastic boxes,founded in 2006, but the founder and the core management team have more than 10years plastic box industry work experience, accumulate rich experience in such field.