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

Non standard hardware parts need to be cleaned before leaving the factory, during assembly and after assembly. Cleaning after trial operation as required can better carry out high-precision production. The cleanliness of non-standard hardware parts processing and cleaning will directly affect the assembly quality and the service life of construction machinery. This is a very important link in the assembly of construction machinery. The processing and cleaning of non-standard hardware parts can have the functions of corrosion prevention, rust prevention and carbon removal. According to its material, structural characteristics, pollution and cleanliness requirements, the correct cleaning method is selected.   The processing and cleaning principle of non-standard hardware parts is to wet the surface of the parts, and the cleaning agent penetrates into the contact interface between the dirt and the parts, so that the dirt falls off, disperses, or dissolves from the surface of the parts. Emulsions and suspensions are formed on the surface of parts to achieve the purpose of cleaning. (1) Scrubbing: put the parts into the container of cleaning agent and scrub with cotton yarn or brush with a brush. This method is easy to operate, simple equipment, but low efficiency. It is suitable for single piece, small batch and small non-standard hardware parts. Generally, gasoline should not be used because it is fat soluble, which will damage people's health and easily cause fire. (2) To boil and wash, put the cleaning agent and the cleaned non-standard hardware parts into a cleaning tank with appropriate size welded with steel plate, heat it to 80~90 ℃ with a stove under the tank, and boil and wash it for 3~5min. (3) Spray cleaning: spray cleaning agent with certain pressure and temperature onto the surface of parts to remove oil stains. This method has good cleaning effect and high production efficiency, but the equipment is complex, which is suitable for cleaning parts with less complex shape and serious oil dirt on the surface. (4) Vibration cleaning: put the parts to be cleaned on the cleaning basket or cleaning rack of the vibration cleaning machine and immerse them in the cleaning agent. The vibration generated by the cleaning machine simulates the manual rinsing action and the chemical action of the cleaning fluid to remove oil stains. (5) Ultrasonic cleaning depends on the chemical action of the cleaning agent and the ultrasonic vibration introduced into the cleaning solution to remove oil stains.

There are many influencing factors to improve the smoothness of stainless steel parts in the processing process, including lathes, materials and cutting tools. Influencing factors: 1. The wrinkle of parts is difficult to deal with, and there are many factors. If it is a long shaft, it may be that the jacking force of the tailstock is not enough, or the tailstock is moving. If there is no problem with the tailstock, tool wear, including processing parameters, cutting fluid and other problems. 2. For the materials of stainless steel parts, the corresponding cutting tools shall be selected. 3. Including the problems of the machine tool itself. 4. The main reason is that the processing strength of stainless steel parts is too long, and the length of machined parts is too long. 5. Too high rotating speed will cause resonance of machine tools and parts and tools, and will also produce patterns. terms of settlement: First of all, we should ensure the stability of the lathe, the fixation of the lathe, and whether there will be shaking when the spindle is running at high speed. Secondly, the coolant is very important. Secondly, your tool should be ground well, and the chip removal groove should be opened well to prevent the workpiece from being scratched due to poor chip discharge, and the turning tool should be made into an arc angle when chamfering. In addition, do not resist the tool when installing the tool. Finally, match the spindle speed and feed speed, so that the lines processed by stainless steel parts are better.

In the process of precision parts processing, ensuring the accuracy of products is only the most basic requirement for the processing and manufacturing industry. In order to make customers more satisfied, we also need to provide customers with more satisfactory solutions in terms of cost, process reliability and delivery time. 1. Delivery time: no matter how good the product is, if it does not meet the delivery time requirements of the guests, it is also meaningless products and services. We need to respond quickly and simplify the process to meet customers' requirements for delivery time. 2. Reliability of process: we can't just do the product well at one time, but we should be able to ensure that the product can be done well every time, which requires the stability, reliability and reproducibility of the process. 3. Optimize the process: first, choose a good process route. Second, through proofing and trial production, solidify the proven successful process through sop to ensure the reliability of processing, rather than errors caused by people. 4. Cost control: low cost is conducive to the reduction of the overall cost of customers' products, and can significantly improve customers' profits and market competitiveness.

Aluminum alloy has very active properties and is easy to form oxide film on its surface, which is difficult to be electroless plated on its surface under conventional conditions. Generally, nickel is plated on the surface of aluminum alloy first, and then other elements are plated.   There are two methods most widely used in chemical nickel plating process: zinc immersion pre plating method and direct chemical nickel plating method. The disadvantage of zinc immersion pre coating method is that it is easy to cause the nickel layer to peel off in a humid corrosive environment. Electroless plating can improve the corrosion resistance and service life of products, and also improve the wear resistance and lubricity of machined parts.   Therefore, it has become the development trend of surface treatment technology. Thermal spraying technology can spray a variety of metal alloys and non-metallic and other solid materials, so it can be made into functional coatings with various properties, and the construction is flexible and adaptable.The surface anti-corrosion treatment shell greatly improves the performance of aluminum alloy shell parts. In order to further meet the anti-corrosion requirements, the surface needs to be sprayed with paint. With the increasing requirements of environmental protection, people's awareness of environmental protection is increasing, and the coatings used for surface corrosion prevention are developing towards the direction of no pollution or low pollution.   With the development of manufacturing technology of various aluminum alloy products, coatings with anti-corrosion function are playing an increasingly important role in saving, environmental protection, anti-corrosion and so on. With the increasing expansion and improvement of the application scope and quantity of aluminum alloy shell parts, the surface corrosion prevention of aluminum alloy shell has also been paid more and more attention by various industries. The research and development and improvement of aluminum alloy surface corrosion prevention technology has become the focus of the aluminum alloy shell processing industry.

The longer the time required for NC machining parts, the higher the cost. Materials that are easier to process are selected faster, so the use cost is lower and the part design reduces the CNC processing cost. 1. Avoid thin wall Integrating thicker walls into parts as much as possible helps speed up processing time and reduce costs. 2. Integral inner radius Designing parts with internal radius instead of sharp corners can simplify the production process, and the larger the internal radius, the larger the milling cutter that can be used, and the faster the processing time. 3. Avoid deep cavities The deeper the cavity is, the longer the time it takes to cut the material. Designing a part with a cavity larger than 4 times the diameter of the tool may require special tools and increase the production cost. 4. Avoid deep threads Keep the thread depth as low as possible to reduce processing costs. Deeper threads (such as deep cavities) may require the use of non-standard tools, which will increase processing time and cost. 5. Adhere to the standard tool size When designing parts, a lot of processing time can be saved by ensuring that the dimensions corresponding to standard CNC tools are maintained 6. Avoid high tolerances Although CNC machining can withstand some of the highest tolerances in any manufacturing process, this does not mean that every part requires the strictest tolerances. In fact, using strict tolerances only when absolutely necessary can significantly reduce costs, as achieving high tolerances increases processing time. 7-swors is a precision engineering manufacturer, specializing in providing high-quality processing parts of various materials, using the latest CNC milling, multi axis, processing, injection molding, laser cutting and bending technologies.

1. Aluminum 6061-T6 6061-T6 is one of the most popular aluminum alloys in the market, and most manufacturing companies regard it as the standard grade for CNC processing. It is widely used and easy to process. 6061 can even be subjected to different heat treatments. 6061-T6 is an excellent general-purpose material suitable for various use cases. Although this material has good strength to weight ratio, it is not suitable for high stress applications. Common applications include automotive parts, such as chassis, bicycle frames, valves, computer parts, and so on. 2. Aluminum 7075-T6 For high stress or high performance applications, the engineer should consider using 7075-T6. This grade of aluminum is famous for its excellent strength to weight ratio, and its hardness is even comparable to that of some softer steels. It is widely used in high stress applications in aerospace and military industry. Common applications include aircraft parts, missile parts and fuse parts. Some high-performance bicycles and sporting goods also include parts made of aluminum 7075-T6. Although 7075-T6 has high strength and excellent mechanical properties, it also has its shortcomings. Compared with other grades, this material has poor ductility and corrosion resistance. More importantly, aluminum 7075-T6 may be too expensive for some product teams. 3. Aluminum 2024-t4 Aluminum 2024-t4 is a medium high strength alloy with good fatigue resistance and fracture toughness. Aluminum 2024-t4 is not as strong as 7075-T6, but it is still suitable for aerospace applications. Common applications of aluminum 2024-t4 include aircraft fuselage, transport vehicle components, and wing tension members. However, the product team should note that this grade of aluminum has poor corrosion resistance and is highly sensitive to thermal shock. 4. Aluminum mic 6 Aluminum mic 6 is unique because its specific combination of alloys and casting methods was developed to produce stable, high tolerance plates. Mic 6 has impressive stress relief performance, excellent accuracy and high machinability. Aluminum mic 6 is also pollution-free and pore free. This smooth, lightweight option can be found in machining parts, electronic equipment and even laser technology. One disadvantage is that mic 6 threads are not as strong as those made of 6061, and particularly thin threads will cause early thread failure. 5. Aluminum 6082 Aluminum 6082 has similar characteristics to aluminum 6061; However, the tensile strength of 6082 is slightly higher. In addition, this type of aluminum has the highest strength of all 6000 series alloys and is very corrosion resistant. 6082 is a good choice for engineers who want to provide more strength than 6061 but do not want to invest in 7000 series. Aluminum 6082 is ideal for general-purpose applications that require increased strength and toughness. This material is very popular in the construction industry and can be found in many bridges, towers and trusses. If the product team chooses to use aluminum processing parts, they can believe that they choose strong, conductive and corrosion-resistant materials. Aluminum alloys 2024-t4, 7075-T6 and 6082 are most suitable for high-performance applications, while 6061 and Mic 6 can be used in most cases, of which general aluminum is sufficient. 7-swors is a precision engineering manufacturer, specializing in providing high-quality processing parts of various materials, using the latest CNC milling, multi axis, processing, injection molding, laser cutting and bending technologies.

CNC machining is a kind of machining method, which refers to the use of computer numerical control machining, that is, the use of digital automation information to control the processing process and movement process of machining, and it can also refer to an automatic machine tool equipped with control system program. CNC machining of precision parts is divided into the following four links: 1、 Face before hole 2、 CNC machining datum first 3、 Finish CNC machining It is generally necessary to take protective measures with velvet cloth, and it must be forbidden to directly contact the product workpiece with your hands or other objects, so as to prevent the external surface of finishing production and processing from being damaged due to the transportation and assembly between steps. 4、 Distinguish production and processing links Generally, it can be divided into rough machining, semi finish milling and finish milling. Mainly to ensure the quality of production and processing products; It is beneficial to the rational use of machinery and equipment; Convenient and reasonable arrangement of heat treatment process steps; It is also convenient to detect hair embryo defects as soon as possible. 7-swors is a precision engineering manufacturer, specializing in providing high-quality processing parts of various materials, using the latest CNC milling, multi axis, processing, injection molding, laser cutting and bending technologies.

The process that aluminum alloy forms an oxide film on aluminum products (anodes) under the action of external current under the corresponding electrolyte and specific process conditions. The natural alumina on the surface of aluminum products is soft and thin, with poor corrosion resistance, so it cannot be an effective protective layer, and it is not suitable for coloring The artificial oxide film is mainly made by chemical oxidation and anodic oxidation Chemical oxidation refers to the treatment process of aluminum products in weak alkaline or weak acid solution, in which some base metals react to thicken the natural oxide film on its surface or produce other passive films. The commonly used chemical oxide films include chromic acid film and phosphoric acid film, which are thin and have good adsorption, and can be colored and sealed. 1. Anodic oxidation can be divided into: Direct current anodizing, alternating current anodizing, pulse current anodizing 2. According to electrolyte: Sulfuric acid, oxalic acid, chromic acid, mixed acid and natural coloring anodic oxidation with sulfonic organic acid as the main solution 3. According to the nature of the film: Common film, hard film (thick film), porcelain film, bright modification layer, barrier layer of semiconductor effect, etc Among them, direct current sulfuric acid anodizing is the most common method。 7-swors is a precision engineering manufacturer, specializing in providing high-quality processing parts of various materials, using the latest CNC milling, multi axis, processing, injection molding, laser cutting and bending technologies.

1、 Whitening treatment of surface natural color: during the processing of stainless steel, black oxide skin is generated after rolling, binding, welding or artificial surface fire baking and heating treatment.Previously, hydrofluoric acid and nitric acid were generally used for strong corrosion removal. However, this method costs a lot, pollutes the environment, is harmful to human body, and is corrosive, so it is gradually eliminated. At present, there are two main methods for oxide skin treatment: 1. Sand blasting (shot) method: it mainly adopts the method of spraying micro glass beads to remove the black oxide skin on the surface. 2. Chemical method: use a pollution-free pickling passivation paste and a non-toxic cleaning solution with inorganic additives at room temperature for leaching. So as to achieve the purpose of whitening the natural color of stainless steel. After treatment, it basically looks matte. This method is suitable for large and complex products. 2、 Surface coloring treatment: Stainless Steel Coloring not only endows stainless steel products with various colors, increases the variety of products, but also improves the wear resistance and corrosion resistance of products. The methods of stainless steel surface coloring are as follows: 1. Chemical oxidation coloring method: refers to the color of the film formed by chemical oxidation in a specific solution, including dichromate method, mixed sodium salt method, vulcanization method, acid oxidation method and alkaline oxidation method. Generally, "inco" is used more, but if you want to ensure that a batch of products have the same color, you must use the reference electrode to control. 2. Electrochemical oxidation coloring method: it is the color of the film formed by electrochemical oxidation in a specific solution. 3. Ion deposition oxide coloring method: put stainless steel workpiece in vacuum coating machine for vacuum evaporation plating. For example, titanium plated watch cases and watch bands are generally golden yellow. This method is suitable for mass production processing. Because of large investment and high cost, small batch products are not cost-effective. 4. High temperature oxidation coloring method: it is to immerse the workpiece in a specific molten salt and maintain certain process parameters, so that the workpiece forms a certain thickness of oxide film and presents various colors. 5. Gas phase cracking coloring method: it is relatively complex and is rarely used in industry.

Precision parts processing products touch the occupations used: hardware tools, plastic machinery, craft gift processing equipment, etc. 1. Processing of complete sets of parts and components of mechanical equipment and industrial automation equipment 2. Processing of single non-standard mechanical parts 3. Batch precision parts processing Such as: CNC lathe processing, CNC computer gong processing, active lathe processing. Processing equipment: general lathes, active lathes, numerical control lathes, numerical control milling machines, CNC turning and milling machines (walking meters), grinders, computer gongs (machining centers), tapping machines, stamping machines and other supporting processing equipment. Machining accuracy: the standard service can reach ± 0.01mm; One time processing concentricity 0.005mm; One time processing parallelism 0.01mm; The straightness of one side is 0.01mm. Surface treatment: stainless steel or wire drawing and polishing; Iron, aluminum, copper and other materials, electroplating, quenching and hardening, various colors of anodizing, wiredrawing, sandblasting, hardening, cleaning and electroplating, etc.