Tài liệu The Plastic Product P4 docx

... 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

... 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

... 1) on either side of the connection point squeeze (hold) the insulation to take any disturbance through movement of the cable away from the contact itself. These ribs also help to seal the insulation ... though the amount of fluid absorbed by the AirES cable was less, fluid did penetrate the air pockets within the insulation due to capillary action. It flowed up to the lev...

Ngày tải lên: 10/12/2013, 20:15

Ngày tải lên: 12/12/2013, 00:15

... đầu lò). - Quan sát qua lỗ xem lửa khi cặp van hai bên lò cháy đều mới chuyển lên đốt van tiếp theo (trường hợp châm không cháy hoặc cháy rồi tắt ph ải đóng ngay van gas và tìm rõ nguyên nhân ... đẩy xe goòng từ : 60 – 70 phút/xe. - Khi đẩy hết 16 xe goòng, bắt đầu hạ nhiệt độ lò nung tính theo nhiệt độ cụm BG 4 . - Chuyển nhiệt độ điểm đặt tại các cụm BG như sau: BG 4 = 1160 0 C,

Ngày tải lên: 12/12/2013, 17:15

... thứ tự với chữ cái hoặc số La Mã bằng cách thêm thuộc tính type với giá trị theo sau: a,A,i,I a,A sẽ đánh thứ tự theo chữ cái, nhưng khác nhau là a in thường, A in hoa. Tương tự như thế với

Ngày tải lên: 14/12/2013, 08:15

... to scale the page design up so that it’s bigger than the browser window anyway. Figure 7-12 shows the web page at the default size, then notched up a bit in the second screen. In the third screen, the ... demonstrate the switching technique further. Now we’re going to do the following: • Get rid of the related-links content • Change the main content so that it takes up 5...

Ngày tải lên: 14/12/2013, 17:15

... = (Circle)myQueue.Dequeue(); The Enqueue method adds an object to the head of a queue, and the Dequeue method removes the object at the other end of the queue. These methods are defined like ... to cast the value returned by the Dequeue method to the appropriate type because the compiler will not perform the conversion from the object type automatically. If you don&...

Ngày tải lên: 15/12/2013, 00:15