The difference between investment casting and lost wax casting
Because most of the precision casting manufacturing companies encounter various types of small and large-scale production, the softness of production and manufacturing is very important. The precision casting field is gradually appearing in the field of precision casting with the use of AC servo motor drive data intelligent robot and host computer software manipulation and integration of shell-making automation technology production assembly line.
Stainless steel precision casting is also called investment casting. This processing technology avoids or does not carry out drilling at all during the whole casting process. It is a casting processing technology with little or no drilling, and it is an excellent production technology in the casting field. Its application scope is very wide, not only suitable for casting of various types and various alloys, but also the specification accuracy and process performance of the produced castings are better than other casting methods. To be high. In addition, investment casting methods can be used for castings that are heat-resistant and inconvenient for production and processing. This type of casting method is more suitable for casting components of high-tech industrial chains such as aerospace, defense and security because it is not at a high temperature during the entire casting process.
The stainless steel precision casting field is different from the traditional casting field because of the high market competitiveness of stainless steel precision casting. Based on relevant statistical analysis,Among European aerospace machinery and equipment and excellent diesel engines, the market competitiveness of precision casting originals is close to accounting for the total value-added70%, but the share in our country is less than 35%. At the present stage in our country, although our country has already had a large casting volume, the use value of casting is still at an upstream level and cannot yet reach the standard. Therefore, the fundamental practical significance of the development trend of stainless steel precision casting is the fundamental requirements of national defense security and high-tech technology, and the second is the inevitable choice for economic development.
Precision casting production and processing technology selects this technology to produce large and medium-sized complex thick-walled castings, which can maintain excellent filling ability and metal mold casting ability while the metal material liquid enters the mold cavity stably, ensuring large and medium-sized complex thick-walled castings. In addition, the precision of the castings has been excellent in metallurgical industry quality, and the crystals of the castings are optimized, resulting in an increase in the relative density and the characteristics of the castings. In order to improve the reliability index and reduce the production and processing cycle time and production cost, the requirements for large and medium-sized complicated thick-walled castings are continuously increasing. Therefore, the application and promotion of this technology has a general development trend in indoor space.
One of the more common ones is investment casting, Also known as lost wax casting: use suitable investment raw materials (such as paraffin) to produce investment molds; repeatedly dip fireproof architectural coatings and sprinkle fireproof sand on the investment molds, hard-bottomed shells and dryness; The internal investment is melted to obtain a cavity; the shell is burned to obtain sufficient compressive strength, and the remaining investment raw materials are burned, and the necessary metal composite materials are poured; the condensation is refrigerated, and the sand is cleaned after molting, and then Obtain high-precision finished products. According to the product, it is necessary to carry out heat treatment process, cold drawing and metal surface treatment.
We have accumulated rich and varied work in the production of precision castings and machining finished parts of various materials such as stainless steel precision casting, carbon steel precision casting, precision casting, dewaxing precision casting, silica sol casting, alloy steel casting, etc. Experience. Hongzhe Hardware's products are widely used in various fields such as: hardware tools, engineering and construction hardware, engineering machinery and equipment, ship hardware, auto parts, pipe valves, special tools for electric power, medical hardware, food, and aerospace production. The manufacturing field is more widely used.
Precision casting plants have many processes in the forming of all metal products. Everyone has advanced production line equipment and analysis and testing instruments to ensure that the products manufactured take into account the quality requirements of customers. In addition, the introduction of advanced production technology in the field.
According to the close cooperation with customers in various fields, we have the use of various metal materials in different natural environments and the application of different machinery and equipment. Rich work experience and mastery. Whether you are developing products or upgrading and improving current products, Hongzhe has the ability to show you good service items in the use of materials and overall design.
Our key production materials are304 stainless steel, 303 stainless steel, 316 stainless steel, 316L stainless steel, 17-4 stainless steel, 202 stainless steel, 420 alloy steel, 430 alloy steel, A3 carbon steel, 20 carbon steel, 45 carbon steel, 4140 alloy steel, 20Crmo, quenched and tempered steel mo , 4Cr13, 2Cr13, D2, SKD11, 1018#, wear-resistant steel and other common raw materials and various materials.