First, look at the plate
When you shop at a specialty store, you can look at the plates by simply "looking," "smelling," and "cutting." "Wang" mainly uses to see whether the cutting surface of the board is complete and whether there is any chipping phenomenon; "smell" mainly uses the nose to smell the smell in the cabinet to judge the environmental protection level of the board. The wardrobe with strong pungent smell is very It may be a “cottage†with high formaldehyde content and unqualified plates; “Q†asks whether the environmental protection level of the shopping guides of the specialty stores is up to standard, and asks them to produce relevant inspection reports and certificates; “cutting†is mainly by hand. Touch the cutting surface of the plate and the edge band to see if there is a stinging feeling. The good wardrobe brand feels smooth and smooth.
Second, look at the details of the process
The "cottage" wardrobe panels are usually processed with small domestic equipment, which is prone to phenomena such as sharp teeth, chipping and chipping. Their edge sealing, the general technology is relatively rough, the edge banding and the board have obvious "boundary", the integrity is not strong, there are black lines between the edge banding and the board, the corner sealing junction is not flat, even to save costs. Only one side of the glossy surface is sealed, and the other three sides of the laminate are not edged. This does not prevent the release of formaldehyde, and it will reduce the moisture resistance of the board. Over time, the laminate may be deformed by moisture and even surface.
Third, look at the packaging of goods
The formal wardrobe brand on the outer packaging of the product, including the edge sealing glue, will be printed with the company's LOGO, using uniform packaging. At the same time, the customer's address, the quantity of the goods, etc. will be indicated on the package. For some small hardware parts, they are also layered and packaged, which is extremely detailed. The outer packaging of the cottage products is certainly not so meticulous.
Fourth, look at the logistics delivery list
After purchasing the wardrobe, the store is required to give a logistics delivery note, and then call the originating station of the logistics company to check whether the product is manufactured and shipped. Some wardrobe brands only export brands and product cultures to dealers, and the products are processed and produced locally by dealers. Therefore, it is very likely that “the brand is bought, but the quality of the product is not in line with its brandâ€.
Five, look after the warranty card
In general, most wardrobe brand after-sales warranty cards are either shipped with the goods in the package, or provided directly by the local store, but both methods have loopholes, and it is difficult to avoid fraud. Therefore, the safest method is that the after-sales warranty card is directly mailed to the customer by the manufacturer, completely eliminating the intermediate loopholes. The user can directly contact the manufacturer and check the product information according to the information on the warranty card received.
Black metal industry standard of the People's Republic of China: Ultra High Power Graphite Electrode (YB/T 4090-2000) "regulation of the ultra High Power Graphite Electrode shape, size and allow deviation, technical requirements, test methods, inspection rule, packing, marking, storage, transportation and quality certificate. It is applicable to high - power Graphite Electrode, which is made of high quality needle coke as the main raw material, which is made of molding, roasting, impregnating, graphitization and machining.
Graphite is very common in nature, and graphene is the intensity of the highest substance known to mankind, but scientists could still take several years or even decades, to find a way to graphite into a large high quality graphene "thin film" method, thus they can be used to manufacture all kinds of useful material for mankind. According to scientists, graphene in addition to very strong, but also has a series of unique features, graphene or conductive performance of the best known materials, which makes it also has great potential applications in the field of microelectronics. The researchers even see graphene as a substitute for silicon that can be used to produce future supercomputers.
superiority
1: the increasing complexity of the geometry of the mould and the diversification of the product application result in the higher and higher demand for the discharge accuracy of the spark machine. The advantage of graphite electrode is that it is easy to process, high removal rate and low graphite loss. Therefore, some of the group spark machine customers have abandoned copper electrode instead of graphite electrode. In addition, some special shaped electrode can't made of copper, but easier to forming, graphite and copper electrode is heavier, not suitable for processing large electrode, these factors have caused part of the group of the graphite electrode spark machine customer applications.
2. Graphite electrode is easier to process, and the machining speed is obviously faster than that of copper electrode. For example, graphite is processed by milling process, and its processing speed is 2~3 times faster than that of other metals, and no additional manual processing is required, while the copper electrode needs to be worn by hand. Similarly, if you use a high speed graphite processing center to make the electrode, it will be faster, more efficient, and will not produce dust problems. In these processes, selecting the right tools and graphite can reduce the abrasion loss of the cutter and the breakage of the copper gong. If the concrete is the milling time of graphite electrode copper electrode and graphite electrode, graphite 67% faster than copper electrode, in the general case of electro discharge machining, the adoption of graphite electrode machining 58% faster than using copper electrode. In this way, the processing time is greatly reduced and the manufacturing costs are reduced.
3: the graphite electrode is different from the traditional copper electrode design. Many mold factory in copper electrode roughing and finishing usually have different requirements, and graphite electrode is used almost the same amount of reserve, this reduces the CAD/CAM and the frequency of machine, sheet is for this reason, to a large extent is enough to improve the precision of the mold cavity.
Of course, the first thing that should be clear is how to use graphite materials and other related factors after the copper electrode is transferred to graphite electrode. Today, some group spark machine customers use graphite for electrode discharge machining, which is exempt from the process of mold cavity polishing and chemical polishing, but still achieve the desired surface finish. If the process of time and polishing is not increased, it is impossible for the copper electrode to produce such an artifact. In addition, the graphite is divided into different levels, and in particular the application of using the appropriate level of graphite and spark discharge parameters to achieve the ideal processing effect, if in the use of graphite electrode spark machine operators use the same as the copper electrode parameters, then the result is certainly disappointing. If the material of the electrode is strictly controlled, the graphite electrode can be used in the non-loss condition (less than 1%), but the copper electrode is not used.
Ultra High Power Graphite Electrode
Ultra High Power Graphite Electrode,Conductive Graphite,Mesh Graphite Electrode,Special Graphite Electrodes
Fengcheng Ruixing Carbon Products Co., Ltd , http://www.lnfcrxts.com