Question 2: What are the common metal products? Metal products industry includes structural metal products manufacturing, metal tools manufacturing, containers and metal packaging containers manufacturing, stainless steel and similar daily metal products manufacturing. With the progress of society and the development of science and technology, metal products are more and more widely used in industry, agriculture and people's lives, and also create more and more value for society.
Scissors, kitchen knife and hammer iron pot
Question 3: What are the metal products? I don't think nonferrous metals belong to
Metal products are products and should be artificially processed. Nonferrous metals are developed and should be natural.
The other two should be
Question 4: Is the color steel plate a non-ferrous metal product? Color steel plate is a steel plate, which belongs to ferrous metal products, but not to non-ferrous metal products.
Question 5: What does the metalworking industry include? Non-ferrous metals and ferrous metals, this is the most basic.
Then there is the product classification.
Question 6: What does the metalworking industry include? Even the statistical company's data is not accurate. Only you can see it, and the situation in each place is definitely different.
Question 7: [Metal products] What is the sand casting process of metal products? Low cost, small batch, can process complex shapes, but may require a lot of post-processing procedures. Investment casting/lost wax casting: This processing method has high continuity and accuracy, and metal products can also be used to process complex shapes. Can achieve a perfect surface effect at a relatively low processing cost, and is suitable for mass production. Casting method: It is used to process complex shapes with large errors. Due to the characteristics of the process itself, the product does not need post-treatment, however, only in the case of large-scale production can it show the advantage of low cost. Die casting method: the processing cost is high, and the cost is reasonable only in the case of mass production. However, the final product cost is relatively low and the error is relatively large. It can be used to produce thin-walled parts. Rotary casting method: it is an ideal method to process small parts, usually used in jewelry manufacturing. Rubber model can be used to reduce the processing cost. Directional solidification: A very strong super heat-resistant alloy with excellent fatigue resistance can be produced, which is poured into a mold, and then subjected to a strictly controlled heating and cooling procedure to eliminate any tiny defects for plastic molding.
Plastic forming processing: refers to the high-temperature heating of the formed metal for reshaping, which belongs to labor-intensive production. Classification of plastic forming process: Forging: It is one of the simplest and oldest metal modeling processes to form metal by beating and extruding under the conditions of cold working or high temperature operation. Matching: The high-temperature metal blank passes through several continuous cylindrical rollers, and the rollers insert the metal into the mold to obtain the predetermined shape. Wire drawing: the process of drawing metal strips into filaments with a series of wire drawing dies with decreasing specifications. Extrusion: a low-cost process of continuous processing. Solid or hollow metal is formed with the same cross-sectional shape, which can be used for both high-temperature operation and cold working. Impact extrusion: a process used to process small and medium-sized parts without chimney taper requirements. The production speed is fast, and parts with various wall thicknesses can be processed. The processing cost is low. Powder metallurgy: a process that can process ferrous and non-ferrous metal parts. Comprises two basic processes of mixing alloy powder and pressing the mixture into a mold. Metal particles are formed by high temperature heating and sintering. This process does not require mechanical processing, and the utilization rate of raw materials can reach 97%. Different metal powders can be used to fill different parts of the mold. Solid forming
Solid forming processing: refers to the use of raw materials such as some metal bars, sheets and other solid forms that can be formed at room temperature. It belongs to labor-intensive production. The input of processing cost can be relatively low. Spinning: a very common processing method for producing circular symmetrical parts, such as plates, cups and cones. During machining, the high-speed rotating metal plate is pushed close to the model on the rotating fixed lathe to get the preset shape. This process is suitable for all kinds of mass production. Bending: an economical production process, which is used to process any form of plates, bars and pipes. Continuous forming: the metal plate is fed between rollers to obtain a metal shape with continuous length and uniform cross section. It is similar to the extrusion process, but it has restrictions on the wall thickness of the machined components, and only a single wall thickness can be obtained. Only on the premise of mass production, the processing cost is the most reasonable. drawing
The metal sheet is placed between the male die and the female die, press-formed, and hollow-formed, and the depth can be deep or shallow. Punching: Cut a certain shape on the metal plate with special tools, which can be applied to mass production. Punching: It is basically similar to the punching process, except that the former uses the punched part and the latter uses the remaining part of the punched metal plate. Cutting: Cutting metal sheet is the same as cutting paper from the best position with scissors. Chip forming: when cutting metal, the cutting methods with chips are collectively called chip forming, including milling, drilling, lathe machining, grinding and sawing. Chip-free molding: the existing metal strip or metal sheet is used for molding. No debris is generated. Such technologies include chemical machining, corrosion, electrical discharge machining, sand blasting, laser cutting, water jet cutting and thermal cutting. industry
In the process of development, the metal products industry also encountered some difficulties, such as single technology, low technical level, lack of advanced equipment, shortage of talents, etc., which restricted the development of the metal products industry. Therefore, we can improve the technical level of enterprises, introduce advanced technology and equipment, and train suitable talents to improve the development of China's metal products industry. ......& gt& gt
Question 8: What does the hardware include? At present, there are more than ten kinds of hardware products in the material market. Mainly includes the following types: lock (1) external lock (2) manual lock (3) drawer lock (4) billiard lock (5) glass window lock (6) electronic lock (7) chain lock (8) anti-theft lock (9) bathroom lock (10) padlock (65430) Hinge: glass hinge, corner hinge door clamp (9) door closer (10) plate pin (1 1) door mirror (12) anti-theft buckle (13) beads (copper, aluminum, PVC). Metal hanger (7) plug (8) curtain rod (copper, wood) (9) curtain rod lifting ring (plastic, steel) (10) sealing strip (1 1) lifting hanger (12) clothes hook, hanger plumbing hardware. Original adhesive tape building decoration hardware (65438+ glass clip (12) insulating adhesive tape (13) aluminum ladder (14) article support tool (1) hacksaw (2) hand saw (3) pliers (4) screwdriver (straight Soap Butterfly (6) single cup holder, single cup (7) double cup holder, double cup, (8) tissue holder (9) toilet brush holder, toilet brush (10) unipolar towel holder, bipolar towel holder (1 1) single shelf (12) mirror (16) soap dispenser (/) Water purifier (65438) hand dryer (20) refrigerator mechanical parts (1) gear (2) machine tool accessories (3) spring (4) seal (5) separation equipment (6) welding material (7) fastener, connector (8) bearing (9) transmission chain (/kloc-0 8 Ball (20) Wire Rope (20) Roller (26) Conveyor Belt (27) Nozzle and Nozzle Joint Furniture Hardware Fittings (1) Furniture Hardware Feet (2) Furniture Hardware Shelf (3) Wooden Screw (4) Hinge (5) Handle (6) Slide (7) Partition Pin (8) Hanger (8)
Question 9: Metal Products Industry The metal products industry has also encountered many difficulties in its development. The single technology, low technical level, lack of advanced equipment and shortage of talents have restricted the development of the metal products industry. Therefore, we can improve the technical level of enterprises, introduce advanced technology and equipment, and train suitable talents to improve the development of China's metal products industry. In 2009, the products of metal products industry will be more and more diversified, the technical level of the industry will be higher and higher, the product quality will be steadily improved, and the competition and market will be further rationalized. Coupled with the further standardization of the industry and the implementation of preferential policies for related industries, the metal products industry will have a huge development space in 2009-20 12.