Die Causes And Prevention Of Mechanical Damage - Stamping Mold - Plastic Industry

Pressure processing industry, the object nature of combat injuries are very serious for three reasons:

1. Pressure processing machinery such as mechanical presses, hydraulic press, forging hammer, shear press, are by a huge energy to work.

2. Causes injury to property or property damage caused by mostly by Mold , Tooling, tools, caused by the protective equipment itself is difficult to work, generally on the measures taken from the process.

3. Injury means no law, and the causes of things, damage caused by objects flying out of the pop-up is difficult to determine position. Thus, pressure processing industry to combat injuries object has its own characteristics, preventive measures taken must be specific, it would be difficult work.

Generated against objects because Pressure processing against damage caused by objects in the following main factors:

1. Because of the irrational structure caused by improper use or stress concentration, leading to mold damage, mold pieces fly out.

2. Module itself is defective, such as surface cracks, fatigue cracks, hardness, etc. too, killing mold fragments flying.

3. Molds, tools, materials, improper use, resulting in mold, tool flying out of local damage, pop.

4. Tooling and equipment does not match the model deformation, damage, fragments flying.

5. Gap did not adjust in time, resulting in mold, tool crack, pop pieces.

Preventive measures According to the above analysis, the generated against objects because the inner mold, tool, total or partial damage to the future, resulting in fragments due to fly out or pop-up, the focus is also to prevent this. Pressure used in mold processing, tools, materials, mostly steel, carbon tool steel and carbide, which have a common characteristic: high hardness, strength, toughness, ductility is relatively low, which is very good for metal deformation, but the operation are detrimental to the safety. How can we balance the two? According to many years of experience, I believe that starting from the improved process methods, to find preventive measures and effective, method is also simple, and cost savings.

Process improvement main consideration is to reduce the stress concentration of mold, tool plastic. Under normal circumstances, the more severe stress concentration, the more easily lead to mold local damage; module plastic worse, the more easily lead to die crack. Reduce the stress concentration of plastic have the following options:

Preheating method From raising workers, the inherent properties of the starting to the plastic mold

1. After a period of time on the use of molds, tools, regular preheating, preheating temperature control in the metal phase transition temperature below, this has little effect on the intensity, but can eliminate stress concentration of plastic. General temperature control in 300 ~ 400 , then with the naked eye or a method of testing the surface inspection, to eliminate the defect.

2. The cold season (at room temperature below 10 ) before the day started with 200 ~ 300 preheating temperature mold, tool, hammer, slide, reducing their plastic deformation resistance increase.

3. Hot working dies, tools, cooling the temperature of cooling water should pay attention not to be too low, do not use rapid cooling, usually to ensure that the cooling water temperature is higher than 50 .

Structural optimization method Favorably Chemical industry A geometric structure that reduce the stress concentration

Addition to attention in the mold, tool surface, edge to avoid sharp corners, sharp angles, but also pay attention to:

1. Note that the "three hearts and one mind." Of the Work Force Center, the geometric center of the mold and press the center of pressure, "three hearts-one", so to avoid stress concentration caused by eccentric damage mold.

2. On the operator side of the face model made possible slope, not only increase the operation Space , And can reduce the frequent use of the mold under the action of angular deformation in stress, damage to the probability of pop-up.

by: gaga

POST COMMENT

Find Out Some Amazing Facts On Blackjack And Slots How temperatures affect honey and beeswax, also how to handle bee stings Your Brain and The Member - Research Discloses Why One Impinges On the Other a pearl and tiffany bracelet Yamaha scooters range to include Neo Fino and Spark Angels and the Gulf Oil Spill How To Persuade People and Get What You Want In 5 Easy Steps 2011 Model Maruti Swift Will Be Cheaper And Shorter What Is The Structure Of Wasp Sting And Its Functions? Reselling Spy Gadgets And The Law: What Should You Know? Survive Affairs And Stay Strong Pay As You Go Phones Vs Sims Free Phones: Both Deals Have Got Some Of The Latest Gadgets On Offer Maintain Green And Weed- Free Lawns With Noon Turf Care