Tài liệu The Plastic Product P2 pdf

... have the various levels (or volumes) indicated by lines on the sides of the product. It may be necessary to first test the mold to find the best cycle times, and then establish the location of the ... to make slots in the mold cavity for the stacking lugs by EDM into the core only after the mold is finished, rather than do it before and then have to increase the heigh...

Ngày tải lên: 20/01/2014, 02:20

... extent. In general, the strength of plastic in the direction of flow is greater than in the direction across the flow. Near the gate, when the plastic flows in all directions, the strength is relatively ... pin or other obstacle breaks the flow into two separate streams. In some products, these weld lines can be objectionable for aesthetic reasons; in others, they may be a...

Ngày tải lên: 20/01/2014, 02:20

... because they shrink more and let the product withdraw more away from the cavity.  The greater the shrinkage factor, the easier the engraved portion pulls away from the cavity.  The greater the ... in the mold represent a one-time cost; therefore, in the long run, the cost of the finished product is less than the cost of applying labels made from paper or pla...

Ngày tải lên: 20/01/2014, 02:20

... 12 2 The Plastic Product 2.1 The Product Design The following contains suggestions for the product design and how it may impact the mold design and the productivity of the mold A new ... improve the product, and to reduce manufacturing costs, particu- larly through the reduction of the plastic mass of the product. The mass of the plastic accounts for a...

Ngày tải lên: 20/01/2014, 02:20

... be. Back to the taxi. The first thing a person might do is flag down the taxi. The driver stops, gets out and opens the door. The riders enter. Then the driver wants to know where to? They point the ... wire-walkers, the clowns ran into the Big Top and did their acts. The audience was kept busy watching their antics, while the other work was going on. The moment the...

Ngày tải lên: 10/12/2013, 04:15

... practiced for the past 25 years in the United States (thanks to Steve Nison's research and work), the Far East has been utilizing these principles and theories for centuries. There is a ... charting theory which was primarily brought to prominence in the United States by Steve Nison. Nison is considered to be the "Godfather" of Japanese candlestick analysis in t...

Ngày tải lên: 10/12/2013, 10:15

... of explaining TPM to their operators, who were mostly young women. They compared TPM to a mother caring for her baby. The equipment, of course, is the baby. The mother, the operator, was responsible ... fever. The mother does a lot of TPM activities, but what if she runs out of options? Then it is time to call the doctor. The doctors are the maintenance people, the spe...

Ngày tải lên: 12/12/2013, 00:15

... if the values aren’t strings, they are converted to their corresponding string representations (for example, the integer 123 would be first converted to the string "123" ). " ;The ... but as the character $ . \{Octal #} The character represented by the specified octal # —for exam- ple, \70 represents the letter 8 . \x{Hexadecimal #} The character represen...

Ngày tải lên: 12/12/2013, 22:15

Ngày tải lên: 13/12/2013, 00:15