China Shenzhen Perfect Precision Product Co., Ltd. company news

304 stainless steel features 304 stainless steel is the most commonly used one in the stainless steel family, with a density of 7.93/cm³. In the terminology of the stainless steel industry, it is also called 18/8 stainless steel, which means that it contains more than 18% chromium and more than 8% nickel; high-temperature resistance of 800 ℃, and has good processing performance and toughness, most of them are used in industry, furniture and other industries. One thing to note is that 304 is also divided into ordinary 304 and food grade 304. Compared with food 304, its content is more stringent. For example, ordinary stainless steel contains 18%-20% chromium and 8%-10% nickel, while food-grade stainless steel 304 contains 18% chromium and 8% nickel, and various metals are restricted. The common labeling methods on the market include 06Cr19Ni10 and SUS304, among which 06Cr19Ni10 generally indicates the national standard production, 304 generally indicates the ASTM standard production and SUS 304 indicates the Japanese standard production 304 is a stainless steel that is often used in reality, and it is widely used in good equipment and industry.

The heat dissipation and good appearance of aluminum alloy have surpassed the current plastic materials, and the weight brought by its own weight cannot be replaced by plastic. 7-swords believes that aluminum alloy has the following six advantages   1. The difference in material: Die-casting aluminum alloys generally use ADC12 or ALsi9cu3. Secondary aluminum alloys generally use 6063 or 6061. 2. The difference in appearance: Die-casting aluminum is equivalent to the injection molding process of plastics and can be made into any shape. The shells on street lamps are generally made of die-casting aluminum. The shape of the equal cross-section used by the second-car aluminum has little change, such as the heat sink of the bulb lamp, and the aluminum profile of the door and window.   3. Thermal conductivity: The general conductivity of die-casting aluminum is about 80-90W/M.K, while the thermal conductivity of automotive aluminum is about 180-190W/M.K. 4. Cost: The cost of die-casting parts and car aluminum is relative, and they are all calculated according to weight and machining. Calculate costs based on real-time material prices and labor. Relatively speaking, the cost of die-casting aluminum is higher, but the specific situation should be analyzed in detail.   5. Production efficiency: The production efficiency of injection molding must be higher. Mass production generally produces more than 1,000 pieces a day, the size is stable, and the shrinkage rate is 0.5%. Car aluminum machining has more ingredients, as the name implies, it is car aluminum. The efficiency is naturally lower.   6. Application: Die-casting aluminum is generally widely used in automobiles, street lamps, and the current mobile phone industry. Automotive aluminum is widely used in downlights, ceiling lights, doors and windows, etc.

What is the maintenance and maintenance work of aluminum profiles? The following South Aluminum manufacturers will give you a brief introduction. Good results can be achieved by doing the following seven things:   1. Soft cloths and towels are suitable for scrubbing. It is strictly forbidden to use corundum powder, sandpaper, wire brushes or other abrasives to scrub the aluminum surface. 2. It is strictly forbidden to loosely load the aluminum alloy profiles during shipment, causing bruises.   3. When the surface of the aluminum profile is corroded and polluted, it should be cleaned in time. The scale can be stained with alcohol or scented glue with a soft cloth (first use alcohol to scrub, if not, then consider using scented glue) to scrub, and then wash it with water . 4. It should be cleaned with warm water containing lubricants or neutral detergents, and acidic or alkaline detergents are not allowed.   5. Soft cloths and towels are suitable for scrubbing. It is strictly forbidden to use corundum powder, sandpaper, wire brushes or other friction objects to scrub the surface of aluminum profiles.   6. For aluminum alloy profiles after cleaning, it is best to use high-quality topcoat protective wax to polish the anodized film, or evenly spray a layer of acrylic resin-based varnish.   7. According to the environmental conditions of use, aluminum alloy profiles should be cleaned of pollutants regularly to maintain brightness.

1. The difference in material: Die-casting aluminum alloys generally use ADC12 or ALsi9cu3. Secondary aluminum alloys generally use 6063 or 6061. 2. The difference in appearance: Die-casting aluminum is equivalent to the plastic injection molding process, which can produce any shape. The outer shell of the street lamp is generally made of die-casting aluminum. The shape of the equal cross-section used by the second-car aluminum has little change, such as the heat sink of the bulb lamp, and the aluminum profile of the door and window. 3. Thermal conductivity: The general conductivity of die-casting aluminum is about 80-90W/M.K, while the thermal conductivity of car aluminum is about 180-190W/M.K. 4. Cost: The cost of die-casting parts and car aluminum is relative, and they are all calculated by weight and machining. Calculate costs based on real-time material prices and labor. Relatively speaking, the cost of die-casting aluminum is higher, but the specific situation should be analyzed in detail.   5. Production efficiency: The production efficiency of injection molding must be higher. Mass production generally produces more than 1,000 pieces a day, and the size is stable, and the shrinkage rate is 0.5%. Car aluminum machining has more ingredients, as the name implies, it is car aluminum. The efficiency is naturally lower.   6. Application: Die-casting aluminum is generally widely used in automobiles, street lamps and the current mobile phone industry. Car aluminum is widely used in downlights, ceiling lights, doors and windows, etc.

The main alloying component of copper alloy is zinc, also known as zinc brass. Brass is used for decorative purposes because of its golden appearance. It can also be used where low friction is required, including gears, locks, bearings and valves. Brass fits the zipper. What's more, brass is widely used in musical instruments, such as bells and trumpets, which require good workability and durability.   Advantage Brass is easily recycled. Brass is easy to work with. Brass is great for decoration. Brass conducts electricity and heat very well. Brass is more malleable than bronze. shortcoming Brass requires a lot of maintenance as it tends to darken easily. Brass can be affected by stress corrosion cracking, especially when it is exposed to ammonia. Bronze - tinned copper alloy Bronze comes in many alloys such as 90-10 bronze and phosphor bronze. Bronze is an alloy consisting primarily of copper, about 12-12.5% tin and other metals such as nickel, zinc, aluminum or manganese, and sometimes nonmetals such as silicon, phosphorus or arsenic, making bronze harder and ductile than copper, stiffness and machinability. Bronze has long been used in coinage and is particularly suitable for ships and ship fittings because of its toughness and resistance to seawater corrosion.

The aluminum profile is a relatively common material in social production. It has a wide range of uses in aviation, construction, auto parts, and other industries. Its excellent performance and many advantages are favored in a wide range of industries. Especially in building materials has a very important position. What is it about it that makes us love it so much? Today, Brilliant Aluminum has summed up its own industry experience and summarized 10 advantages for everyone. (Information is for reference only) 1. The metal density of aluminum profiles is small, light in weight, and the density is only 2.70 g/cm3, which is 1/3 of copper or iron. 2. It adopts hot and cold treatment, which has strong corrosion resistance. 3. It has good ductility and can be used to make light alloys with many metal elements, with high-quality materials. 4. It has strong plasticity and good productivity, which has good advantages for production and production. 5. Good casting performance. 6. Good surface treatment performance. 7. It has stable chemical properties and can be recycled repeatedly. It is a benign and recyclable metal material. 8. Anti-nuclear radiation. 9. The surface oxide layer has no volatile metals. 10. It has good thermal conductivity and electrical conductivity.

1. Turning The workpiece rotates, and the turning tool moves in a straight line or a curved line in the plane. Turning is generally carried out on a lathe to process the inner and outer cylindrical surfaces, end surfaces, conical surfaces, forming surfaces and threads of the workpiece. The turning precision is generally IT8-IT7 and the surface roughness is 1.6-0.8μm. 1) Rough turning strives to use large cutting depth and large feed rate to improve turning efficiency without reducing the cutting speed, but the machining accuracy can only reach IT11, and the surface roughness is Rα20-10μm. 2) Semi-finishing and finishing turnings use high-speed and small feed rate and cutting depth as much as possible, the machining accuracy can reach IT10-IT7, and the surface roughness is Rα10-0.16μm. 3) Using finely repaired diamond turning tools on high-precision lathes for high-speed fine-tuning of non-ferrous metal parts, the machining accuracy can reach IT7-IT5, and the surface roughness is Rα0.04-0.01μm. This kind of turning is called "mirror turning" ". 2. Milling Milling is a high-efficiency machining method that uses a rotating multi-blade tool to cut a workpiece. It is suitable for processing planes, grooves, various forming surfaces (such as splines, gears and threads) and special surfaces of molds, etc. According to the same or opposite direction of the main movement speed and the feed direction of the workpiece during milling, it can be divided into down milling and up milling. The machining accuracy of milling can generally reach IT8-IT7, and the surface roughness is 6.3-1.6μm. 1) Machining accuracy IT11-IT13 during rough milling, surface roughness 5-20μm. 2) The machining accuracy of semi-finish milling is IT8-IT11, and the surface roughness is 2.5-10μm. 3) The machining accuracy of fine milling is IT16-IT8, and the surface roughness is 0.63-5μm. 3. Planing Planing processing is a cutting processing method in which a planer is used to make a horizontal relative linear reciprocating motion on the workpiece, and is mainly used for the shape processing of parts. The planning precision can generally reach IT9-IT7, and the surface roughness is Ra6.3-1.6μm. 1) The machining accuracy of rough planing can reach IT12-IT11, and the surface roughness is 25-12.5μm. 2) The machining accuracy of semi-finish planing can reach IT10-IT9, and the surface roughness is 6.2-3.2μm. 3) The machining accuracy of fine planing can reach IT8-IT7, and the surface roughness is 3.2-1.6μm. 4. Grinding Grinding refers to the processing method of using abrasives and abrasive tools to remove excess material on the workpiece. It belongs to finishing and is widely used in the machinery manufacturing industry. Grinding is usually used for semi-finishing and finishing, the accuracy can reach IT8-IT5 or even higher, and the surface roughness is generally 1.25-0.16μm. 1) The surface roughness of precision grinding is 0.16-0.04μm. 2) The surface roughness of ultra-precision grinding is 0.04-0.01μm. 3) The surface roughness of mirror grinding can reach below 0.01μm. 5. Drilling Drilling is a basic method of hole processing. Drilling is often performed on drilling machines and lathes, and can also be performed on boring machines or milling machines. The machining accuracy of drilling is low, generally only up to IT10, and the surface roughness is generally 12.5-6.3 μm. After drilling, reaming and reaming are often used for semi-finishing and finishing. 6. Boring Boring is an internal diameter cutting process in which a tool is used to enlarge a hole or other circular profile. Applications generally range from semi-roughing to finishing. The tool used is usually a single-edged boring tool (called a boring bar). 1) The boring accuracy of steel materials can generally reach IT9-IT7, and the surface roughness is 2.5-0.16μm. 2) The machining accuracy of precision boring can reach IT7-IT6, and the surface roughness is 0.63-0.08μm. Note: Machining accuracy is mainly used to characterize the fineness of the produced product, and it is a term for evaluating the geometric parameters of the machined surface. The standard for measuring the machining accuracy is the tolerance level. There are 20 tolerance levels from IT01, IT0, IT1, IT2, IT3 to IT18. Among them, IT01 indicates the highest machining accuracy of the part, and IT18 indicates the lowest machining accuracy of the part. Generally, factories and mines Machinery belongs to the IT7 level, and general agricultural machinery belongs to the IT8 level. According to the different functions of the product parts, the processing precision that needs to be achieved is different, and the selected processing form and processing technology are also different.

3D printing (3DP) is a rapid prototyping technology. It works basically the same as ordinary printers, but the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper, while 3D printers are filled with metals, ceramics, plastics, sand, etc. The "printing materials" are real raw materials. After the printer is connected to the computer, the "printing materials" can be superimposed layer by layer through computer control. It builds a print by printing layer by layer based on a digital model file. Finally turn the blueprint on the computer into a real thing. So what is the relationship between 3D printing and the mold industry? As you can imagine, if some tools and models in the mold industry can be realized through 3D printing technology, then both in terms of manpower and material resources, we can reduce our consumption a lot. Moreover, the products printed by 3D printing technology are also guaranteed in terms of hardness and quality. Whether it's screws, molds, small tools, or even some specific hardware tools, they can all be printed. It seems that the 3D printing industry may indeed have a strong impact on the mold industry. It can be combined with mold technology to produce a variety of mold products, which may be a huge leap for the mold industry. Every new design innovation and improvement may bring new influences to different industries. We should not be limited to a fixed way of thinking but should carry out the subsequent work with an innovative spirit.

Electric discharge machining is an essential machining equipment in industry, machinery, and machining industries. The most common discharge equipment are "wire cutting", "electric spark", "punching machines" and so on. Although both belong to electric discharge machining, the principles of EDM and wire cutting are very different. Wire cutting uses molybdenum wire and copper wire as electrodes, while the discharge electrode is generally made of graphite, copper alloy and other materials with good conductivity, good melting point and resistance to electrical corrosion. EDM requires a medium to act as a separator. The reason why it can corrode product materials is the high-temperature melting caused by instantaneous breakdown. Therefore, whether it is wire cutting or EDM, it is a slow processing process, and the accuracy can be guaranteed due to the low efficiency. As far as the processing size accuracy is concerned, the wire cutting (slow wire cutting) equipment can reach up to 0.5 μm when the equipment is good, the best fast wire cutting can reach 0.01 mm, and the highest precision of the spark machine can reach 1 μm. Surface finish is an important index to measure the quality of a part. The wire-cutting machine can reach a surface of 0.8 μm, and the EDM is about 1 μm.

CNC lathe is a high-precision, high-efficiency automatic machine tool. The use of CNC lathe can improve processing efficiency and create more value. The emergence of CNC lathe enables enterprises to get rid of the backward processing technology. The processing technology of CNC lathe is similar, but since the CNC lathe is a one-time clamping and continuous automatic processing completes all the turning processes, the following aspects should be paid attention to. 1. Reasonable selection of cutting amount 2. Reasonable selection of tools 3. Determine the processing route 4. The relationship between processing route and processing allowance 5.fixture installation points