Lock Cylinder Rotor MIM Parts
Metal (ceramic) powder injection molding technology (Metal Injection Molding, referred to as MIM technology) is the product of the interpenetration and intersection of plastic molding technology, polymer chemistry, powder metallurgy technology and metal materials.
Product Description
Lock cylinder rotor MIM Parts | |||||||||
Item | Material | Production Process | Sintering Temperature | Mold | Custom | ||||
17-4 | Metal Injection Molding | 1550℃ | 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 | ||||||||
Process introduction
Overview of MIM technology
Metal (ceramic) powder injection molding technology (Metal Injection Molding, referred to as MIM technology) is the product of the interpenetration and intersection of plastic molding technology, polymer chemistry, powder metallurgy technology and metal materials. Forming blanks and quickly manufacturing high-density, high-precision, three-dimensional complex structural parts through sintering can quickly and accurately materialize design ideas into products with certain structural and functional characteristics and directly mass-produce parts. It is a manufacturing technology industry. A new revolution. This process technology not only has the advantages of less conventional powder metallurgy process steps, no cutting or less cutting, and high economic benefits, but also overcomes the traditional powder metallurgy process of low density, uneven material, low mechanical properties, difficult to form thin walls, and complex structures. Disadvantages, especially suitable for mass production of small, complex and metal parts with special requirements.
Advantages of MIN process
1. Like the production of plastic products, it can produce metal, ceramic and other parts with complex shapes at one time.
2.Lock cylinder rotor MIM Parts have low cost, good finish and high precision (±0.3%~±0.1%), and generally do not require subsequent processing.
3. The product has high mechanical properties such as strength, hardness, and elongation, good wear resistance, fatigue resistance, and uniform structure.
4. The utilization rate of raw materials is high, the degree of production automation is high, the process is simple, and it can be produced continuously in large quantities.
5. No pollution, the production process is a clean process
Anti-theft standard
The security level of the anti-theft lock is divided into A level, B level and C level according to the national standard.
1. Class A lock cylinder, anti-opening ≥ 1 minute, anti-drilling ≥ 10 minutes, anti-saw ≥ 5 minutes, anti-prying ≥ 10 minutes, anti-pull ≥ 10 minutes, anti-shock ≥ 10 minutes.
2. Class B lock cylinder, anti-opening ≥ 5 minutes, anti-drilling ≥ 15 minutes, anti-saw ≥ 5 minutes, anti-prying ≥ 15 minutes, anti-pull ≥ 15 minutes, anti-shock ≥ 15 minutes.
3. Class C lock cylinder, anti-technical opening ≥ 10 minutes, anti-drilling ≥ 30 minutes, anti-saw ≥ 30 minutes, anti-prying ≥ 30 minutes, anti-pull ≥ 30 minutes, anti-shock ≥ 30 minutes.
Classification
Grade A: The key is flat or crescent-shaped, with a row of concave key grooves on one or both sides or a cross-shaped key with convex key grooves on four sides;
Class B: The key is flat or crescent-shaped, with two rows of concave key grooves or cylindrical multi-point concave key holes on one or both sides;
Class C: The key is flat, with two rows of concave and S-shaped key grooves on one or both sides, or double snake-shaped key grooves inside and outside;
Selection criteria
The safest lock cylinder has been upgraded to B-level and C-level, and it is best to choose C-level when purchasing.
The first trick: before buying a lock, you can judge the quality of the lock cylinder based on how much the key teeth cost. It mainly depends on the structure of the lock cylinder. The blade-side column structure is often much better than the traditional marble structure. It is best to look for a lock when picking a lock. Professional teachers consult and then choose according to the situation.
The second trick: Pick a lock and weigh it by catty. One compares the weight and the other looks at the lock cylinder. The heavier the weight, the better the quality of the lock cylinder, and the more beads in the lock cylinder, the better the anti-theft function.
The third trick: choose the lock cylinder to see the color, and compare the color to see the workmanship. Good-quality lock cylinders are electroplated, with smooth surfaces and bright colors. Among them, the dark yellow color is copper core, which is relatively strong and has better anti-theft performance.
The fourth measure: the anti-theft performance is poor when the key is rotated and inserted into the lock cylinder, and the anti-theft performance is poor. After the key is half-inserted, use 5 to 7 points of force to rotate clockwise or counterclockwise and continue to press the key into the lock. The stuck key indicates that the lock cylinder is anti-theft The performance is poor, and the lock cylinder is inserted smoothly in the half-rotation state, which means that the anti-theft effect is good.
Technical indicators
According to the relevant regulations of my country's GA/T 73-2015 "Mechanical Anti-theft Lock", the main technical indicators of the mechanical anti-theft lock cylinder, the security level of the lock cylinder in my country is now divided into three types: A, B and C, and A is the lowest. , increasing in turn.
1. Anti-technology opening time: A-level lock cylinder is greater than 1 minute (but less than or equal to 5 minutes); B-level lock cylinder is greater than 5 minutes; C-level lock cylinder is greater than 10 minutes.
2. Mutual opening rate: Class A ≤0.03%; Class B and Class C ≤0.01%.
3. Number of keys: Class A: The number of keys for tumbler locks should be no less than 6x104, the number of keys for leaf locks and lever locks should be no less than 2.5x104, and the number of difference exchanges is one; B-level and C-level : The number of keys for tumbler locks should be no less than 3x104 types, the number of keys for magnetic pin locks, blade locks, and lever locks should be no less than 1x104 types, and the number of differential exchanges is two; the theoretical number of keys for mechanical combination locks should be No less than 6x107 types, and the actual convertible key amount should not be less than 60% of the theoretical key amount.
This type of lock cylinder is widely used
Lock cylinder rotor MIM Parts are widely used in all kinds of door locks, fire locks and other lock products
The size of the lock cylinder can be customized according to the thickness of the door, and the length of the lock cylinder is 40mm-160mm.
American thread lock cylinder
This type of lock cylinder is used for high-end door locks
Good quality and high safety. Use less.
Fireproof lock cylinder
The fire-proof lock cylinder is used in fire-proof door locks, which can withstand a high temperature of 975 degrees for 90 minutes. It is a special door lock cylinder enforced by the country. The general specification is 30mmX32mm.
Detection Systems
Metal Injection Molding Process
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