The oil mist and odor are filled in the workshop. This is a common phenomenon in the production and processing of fasteners such as screws and nuts. A high-tech enterprise in our city has developed a high-efficiency, energy-saving and environmentally-friendly fastener processing equipment new product through technological research and created a clean production environment for the company. Yesterday, "multi-station high-speed automatic cold heading machine" passed the new product appraisal organized by the municipal economic commission.
Ningbo is an important solid production base in the country and its output accounts for about one fourth of the country. According to Fan Yulong, former president of the Ningbo Fastener Industry Association and currently honorary president, most of the fastener companies in our city have applied high-precision, high-efficiency, high-quality, and low-cost cold heading machines for production, but the cold heading machine has a disadvantage. That is, it is inevitable that a large amount of oil mist and odor will be produced in the work. Therefore, the workers' production environment is relatively poor.
Ningbo Sijin Machinery Co., Ltd. is a high-tech enterprise engaged in the development and production of mechanical equipment in Ningbo National High-tech Zone. After understanding the production status of the fastener industry, in 2008 the company decided to develop an environmentally friendly multi-station automatic cold heading machine. After careful study of the existing cold heading process, Sijin company has carried out a green optimization design of the cold heading machine. On the one hand, it reduces the generation of oil mist from the source, and on the other hand, automatically evaporates the mist that will inevitably occur. The fuselage organization was also optimized so that the new cold heading machine achieves the goals of high efficiency, energy saving and environmental protection. The new product has obtained 2 invention patents, 1 utility model patent, and has been funded by the National SME Technology Innovation Fund.
Fasteners Process Flow Fasteners are manufactured in batches, and the raw materials are selected from wire and cable. The process flow is as follows:
Carbon steel: disk element → coarse pumping → annealing → pickling → fine pumping → molding → dental processing → heat treatment → surface treatment → packaging stainless steel: disk element → film processing → fine pumping → molding → dental processing → surface treatment → packaging cable : Pull cold plate to the desired wire diameter. Practically for some products can be divided into rough and fine pumping.
Pickling: Remove the oxide film on the surface of the wire, and form a layer of phosphate film on the metal surface to reduce the scraping of the tool during wire drawing and cold pier or forming.
Film: A dense oxalic acid film is formed on the surface of the stainless steel plate element to protect the surface of the wire material, so that sufficient lubrication is provided for subsequent drawing and molding, and the abrasion of the tool and die is reduced.
Forming: The disk element that has been drawn to a suitable wire diameter is extruded through a die to a semi-finished product shape.
Teeth: external threads are generally fangs or rolling (dental) internal threads generally tapping. The formed semifinished product is tumbled or tapped to form the desired thread shape. For some technical requirements that require cutting, drilling, etc., before or after the production of teeth, it is necessary to add cutting or drilling processes.
Heat treatment: Different heat treatment methods can be used depending on the object and purpose.
Quenched and tempered steel: high temperature tempering after quenching (500-650°C)
Spring steel: Tempered after tempering (420-520°C)
Carburizing steel: quenched after carburizing and then tempered at low temperature (150-250°C)
Stainless steel: A2 and A4 materials cannot be strengthened by heat treatment.
Surface treatment: Stainless steel generally does not need other surface treatment after degreasing and washing; carbon steel is as follows:
Electroplating: The product is immersed in an aqueous solution containing a deposited metal compound. An electric current is passed through the plating solution so that the plated metal is precipitated and deposited on the component. Can be divided into: galvanized, copper, nickel, chromium, copper-nickel alloys, etc., sometimes boiled (blue), phosphating, etc. are also included.
Hot dip galvanizing: The product is immersed in a bath of molten zinc at a temperature of approximately 510°C. As a result, the iron-zinc alloy on the surface of the steel gradually becomes passivated zinc on the outer surface of the product. Hot dip aluminum plating is similar.
Mechanical plating: The surface of the product is impacted by the metal particles of the plated metal, and the coating is cold welded to the surface of the product.
Ningbo is an important solid production base in the country and its output accounts for about one fourth of the country. According to Fan Yulong, former president of the Ningbo Fastener Industry Association and currently honorary president, most of the fastener companies in our city have applied high-precision, high-efficiency, high-quality, and low-cost cold heading machines for production, but the cold heading machine has a disadvantage. That is, it is inevitable that a large amount of oil mist and odor will be produced in the work. Therefore, the workers' production environment is relatively poor.
Ningbo Sijin Machinery Co., Ltd. is a high-tech enterprise engaged in the development and production of mechanical equipment in Ningbo National High-tech Zone. After understanding the production status of the fastener industry, in 2008 the company decided to develop an environmentally friendly multi-station automatic cold heading machine. After careful study of the existing cold heading process, Sijin company has carried out a green optimization design of the cold heading machine. On the one hand, it reduces the generation of oil mist from the source, and on the other hand, automatically evaporates the mist that will inevitably occur. The fuselage organization was also optimized so that the new cold heading machine achieves the goals of high efficiency, energy saving and environmental protection. The new product has obtained 2 invention patents, 1 utility model patent, and has been funded by the National SME Technology Innovation Fund.
Fasteners Process Flow Fasteners are manufactured in batches, and the raw materials are selected from wire and cable. The process flow is as follows:
Carbon steel: disk element → coarse pumping → annealing → pickling → fine pumping → molding → dental processing → heat treatment → surface treatment → packaging stainless steel: disk element → film processing → fine pumping → molding → dental processing → surface treatment → packaging cable : Pull cold plate to the desired wire diameter. Practically for some products can be divided into rough and fine pumping.
Pickling: Remove the oxide film on the surface of the wire, and form a layer of phosphate film on the metal surface to reduce the scraping of the tool during wire drawing and cold pier or forming.
Film: A dense oxalic acid film is formed on the surface of the stainless steel plate element to protect the surface of the wire material, so that sufficient lubrication is provided for subsequent drawing and molding, and the abrasion of the tool and die is reduced.
Forming: The disk element that has been drawn to a suitable wire diameter is extruded through a die to a semi-finished product shape.
Teeth: external threads are generally fangs or rolling (dental) internal threads generally tapping. The formed semifinished product is tumbled or tapped to form the desired thread shape. For some technical requirements that require cutting, drilling, etc., before or after the production of teeth, it is necessary to add cutting or drilling processes.
Heat treatment: Different heat treatment methods can be used depending on the object and purpose.
Quenched and tempered steel: high temperature tempering after quenching (500-650°C)
Spring steel: Tempered after tempering (420-520°C)
Carburizing steel: quenched after carburizing and then tempered at low temperature (150-250°C)
Stainless steel: A2 and A4 materials cannot be strengthened by heat treatment.
Surface treatment: Stainless steel generally does not need other surface treatment after degreasing and washing; carbon steel is as follows:
Electroplating: The product is immersed in an aqueous solution containing a deposited metal compound. An electric current is passed through the plating solution so that the plated metal is precipitated and deposited on the component. Can be divided into: galvanized, copper, nickel, chromium, copper-nickel alloys, etc., sometimes boiled (blue), phosphating, etc. are also included.
Hot dip galvanizing: The product is immersed in a bath of molten zinc at a temperature of approximately 510°C. As a result, the iron-zinc alloy on the surface of the steel gradually becomes passivated zinc on the outer surface of the product. Hot dip aluminum plating is similar.
Mechanical plating: The surface of the product is impacted by the metal particles of the plated metal, and the coating is cold welded to the surface of the product.
College Tennis Court Competitions,Tennis Field Artificial Grass,Community Tennis Courts
Shenzhen New Gaopin Sports Goods Co,Ltd , https://www.sznewgaopin.com