Mesh Strap Magnetic Buckle MIM Parts
A metal injection molding process according to claim 1, characterized in that: the thermal de-furnace in step e includes a conveying system and a furnace body, and the degreased product in step d is placed in a thermal de-furnace, The heat take-off boat is placed on the conveying system.
Product Introduction
Mesh Strap Magnetic Buckle MIM Parts | |||||||||
Item | Material | Production Process | Sintering Temperature | Mold | Custom | ||||
Mesh Strap Magnetic | 17-4 | Metal Injection Molding | 1500℃ | To be customized | Yes | ||||
Chemical Composition | C：≤0.07 | ||||||||
Available Materials | Low carbon stainless steel, titanium alloy (Ti, TC4), copper alloy, tungsten alloy, hard alloy, high temperature alloy (718, 713) | ||||||||
Finish | Dimensional Accuracy | Product Density | Appearance Treatment | Appropriate Weight | |||||
Roughness 1～5μm | （±0.1%～±0.5%） | 92～95% | Mirror Reflection | 0.03g～400g） | |||||
Mechanical properties | Tensile strength σb (MPa): aged at 480°C, ≥1310; aged at 550°C, ≥1060; aged at 580°C, ≥1000; aged at 620°C, ≥930 | ||||||||
Production Process
1. A metal injection molding process, Mesh Strap Magnetic Buckle MIM Parts is characterized in that it comprises the following specific steps:
Step a. Ingredients: Weigh the metal powder and plastic according to the proportion, and put them into the internal mixer to mix the metal powder and plastic;
Step b. Granulation: Put the mixture obtained in step a into granulation equipment to form feed;
Step c. Forming: put the feed obtained in step b into the injection molding machine, assemble the product mold on the injection molding machine, inject the molten feed into the mold cavity of the mold, open the mold and take out the product;
Step d. Degreasing: put the product obtained in step c into a degreasing furnace for degreasing, and remove 90% of the plastic;
Step e. Thermal degreasing: put the product degreased in step d into a thermal degreasing furnace to remove the remaining 10% plastic;
Step f. Sintering: put the product obtained in step e into a vacuum sintering furnace for high-temperature sintering to obtain a finished product.
2. A metal injection molding process according to claim 1, characterized in that: the thermal de-furnace in step e includes a conveying system and a furnace body, and the degreased product in step d is placed in a thermal de-furnace, The heat take-off boat is placed on the conveying system. The furnace body includes a furnace inlet and a furnace outlet. The conveying system drives the heat take-off boat into the furnace body from the furnace inlet and from the furnace The furnace outlet leaves the furnace body, and the furnace inlet is provided with an air inlet.
3. A metal injection molding process according to claim 2, characterized in that: the furnace body is provided with six heating elements, and the furnace body is divided into six temperature zones by the six heating elements, each Each of the temperature zones is provided with a thermocouple.
4. A metal injection molding process according to claim 2, characterized in that: the transmission system includes a motor, a driving wheel, a driven wheel and a mesh belt chain, the motor drives the driving wheel to rotate, and the driving wheel The wheel meshes with the driven wheel to drive the driven wheel to rotate, and the driven wheel rotates to drive the mesh belt chain to move, the hot boat is placed on the mesh belt chain, and the mesh belt chain moves to drive The heat take-off boat enters the furnace body from the furnace inlet and leaves the furnace body through the furnace outlet.
5. A metal injection molding process according to claim 4, characterized in that: the transmission system further comprises a support wheel and a pinch wheel, and the support wheel and the pinch wheel support the mesh belt chain and compact to form a loop structure.
6. A kind of metal injection molding process according to claim 3, characterized in that: the use of thermal de-furnace in step e also includes the following specific steps: Step e1. Open the air inlet valve on the furnace inlet, filled with nitrogen;
Step e2. Adjust the temperature of the six temperature zones in the furnace to 150°C, 200°C, 300°C, 400°C, 450°C, and 550°C in sequence;
Step e3. When the temperature rises to the set value, place the degreased product in step d in the heat-off boat;
Step e4. Place the heat-removing boat on the conveying system, automatically enter from the furnace inlet, and automatically flow out from the furnace outlet to complete the heat-removal treatment.
7. A metal injection molding process according to claim 1, characterized in that: in step c, the heating temperature of the injection molding machine is 180°C, and the heating temperature of the mold is 120°C.
8. A metal injection molding process according to claim 1, characterized in that the sintering temperature of the vacuum sintering furnace in step f is 1350°C.
9. A metal injection molding process according to claim 6, wherein the temperature tolerance of each temperature zone in step e2 is ±20°C.
10. A metal injection molding process according to claim 6, characterized in that the moving speed of the conveying system in step e4 is 65mm/min-70mm/min.
Detection Systems
Metal Injection Molding Process
Send Inquiry
