KR900015888A - Manufacturing method of shrinking product - Google Patents

Manufacturing method of shrinking product Download PDF

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Publication number
KR900015888A
KR900015888A KR1019890004863A KR890004863A KR900015888A KR 900015888 A KR900015888 A KR 900015888A KR 1019890004863 A KR1019890004863 A KR 1019890004863A KR 890004863 A KR890004863 A KR 890004863A KR 900015888 A KR900015888 A KR 900015888A
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KR
South Korea
Prior art keywords
die
extrusion
product
rail
plate
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KR1019890004863A
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Korean (ko)
Inventor
보르크 톰미
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무올론 오와이
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Priority to KR1019890004863A priority Critical patent/KR900015888A/en
Publication of KR900015888A publication Critical patent/KR900015888A/en

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Abstract

내용 없음.No content.

Description

수축성제품의 제조방법Manufacturing method of shrinking product

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 관형 다이가 사용될때 방법을 적용시키기 위한 장치에 대한 설비를 도시한 도면,1 shows the installation for an apparatus for applying a method when a tubular die is used,

제2도는 전술한 도면에 관련하여 수축성-% 및 벽두께 사이의 의존관계를 그래프로 도시한 도면,FIG. 2 graphically shows the dependence between shrinkage-% and wall thickness in relation to the above figures;

제3도는 수축성-%과 시간의 의존관계를 그래프로 도시한 도면.3 is a graphical representation of the dependence of shrinkage-% and time.

Claims (16)

압출에 의해 열가소성 원료로 된 수축성 제품을 제조하기 위한 방법에 있어서, 상기 방법은, 분자를 길이방향으로 방향설정토록 하기 위해 흐름이 층상인 상태로 있도록 저속으로 다이(3,23)를 통해 압출시 플라스틱 원료를 압출시키는 단계, 및 분자의 길이방향 설정이 최종제품에서 고체상태로 유지될 수 있도록 압출 후 플라스틱 재료를 신속히 냉각시키는 단계로 이루어지는 것을 특징으로 하는 수축성 제품의 제조방법.A method for producing a shrinkable product made of thermoplastic raw material by extrusion, wherein the method is adapted to extrusion through dies 3 and 23 at a low speed so that the flow is in a layered state in order to orient the molecules in the longitudinal direction. Extruding the plastic raw material, and rapidly cooling the plastic material after extrusion so that the longitudinal setting of the molecules can be maintained in a solid state in the final product. 제1항에 있어서, 압출다이(3,23)는 층류를 안정화시키기 위해 길고, 좁은 슬롯다이임을 특징으로 하는 방법.2. Method according to claim 1, characterized in that the extrusion die (3,23) is a long, narrow slot die for stabilizing laminar flow. 제1항 또는 제3항에 있어서, 다이(3, 23)의 벽을 따른 분자의 속도가 점착으로 인해 가능한한 제로에 가까운 치로 유지됨을 특징으로 하는 방법.The method according to claim 1 or 3, characterized in that the speed of the molecules along the walls of the die (3, 23) is kept at as close to zero as possible due to the adhesion. 제1항 내지 3항 중 어느 한 항에 있어서, 다이(3,23)의 터미날부의 온도가 점착력을 증가시키기 위해 낮은치로 유지됨을 특징으로 하는 방법.Method according to any of the preceding claims, characterized in that the temperature of the terminal portion of the die (3,23) is kept at a low value to increase the adhesion. 제1항 내지 4항 중 어느 한 항에 있어서, 압출다이가 환상다이(3)임을 특징으로 하는 방법.The method according to any one of claims 1 to 4, characterized in that the extrusion die is an annular die (3). 제5항에 있어서, 압출 후 실질적으로 환상형태의 환상다이(3)로부터 나오는 물질의 직경이 변화되고, 그 블로우 비가 0.7 내지 1.5의 범위에 있는 것을 특징으로 하는 방법.6. A method according to claim 5, characterized in that the diameter of the material exiting the substantially annular annular die (3) after extrusion is changed and the blow ratio is in the range of 0.7 to 1.5. 제6항에 있어서, 스트레칭이 압출 후 수행되고, 그 드로우비가 1 내지 6의 범위에 있는 것을 특징으로 하는 방법.7. The method of claim 6, wherein stretching is performed after extrusion and the draw ratio is in the range of 1-6. 제6항에 있어서, 관형제품(18)이 실질적으로 환상형태의 물질로 형성됨을 특징으로 하는 방법.7. Method according to claim 6, characterized in that the tubular article (18) is formed of a substantially annular material. 제8항에 있어서, 관형제품(18)이 판상제품(9)으로 다시 절단되는 것을 특징으로 하는 방법.9. A method according to claim 8, characterized in that the tubular product (18) is cut back into a plate-like product (9). 제9항에 있어서, 판상제품(9)이 수용수단(8)내로 통과후, 리일(19,17)위에 감겨지는 것을 특징으로 하는 방법.10. Method according to claim 9, characterized in that the plate-like product (9) is wound on the rail (19, 17) after passing into the receiving means (8). 제10항에 있어서, 리일의 내부를 향해 회전되는 표면이 본래관의 외면을 형성한 면이 되도록, 관상제품(9)이 리일(12,17)위에 감겨지는 것을 특징으로 하는 방법.Method according to claim 10, characterized in that the tubular product (9) is wound on the rail (12, 17) such that the surface rotated toward the inside of the rail is the surface forming the outer surface of the original tube. 제11항에 있어서, 판상제품(9)의 횡단응력이 대략 110 내지 130℃에서의 열처리에 의해 적어도 부분적으로 제거되는 것을 특징으로 하는 방법.12. The method according to claim 11, wherein the transverse stress of the plate product is at least partially removed by heat treatment at approximately 110 to 130 ° C. 제1항 내지 4항 중 어느 한 항에 있어서, 압출다이가 평다이(23)임을 특징으로 하는 방법.The method according to any one of the preceding claims, characterized in that the extrusion die is a flat die (23). 제13항에 있어서, 평면형태가 바람직한 평다이(23)으로부터 나오는 물질의 두께의 변화가 조정수단(27,28)에 의해 보상되는 것을 특징으로 하는 방법.14. Method according to claim 13, characterized in that the change in the thickness of the material exiting the flat die (23), in which the planar shape is desired, is compensated by the adjusting means (27, 28). 제14항에 있어서, 실질적으로 평면형태의 평다이(23)로부터 나오는 물질이 판상제품(29)을 형성하기 위해 냉간 리시이빙롤(30)을 통과 후, 리일(35)위에 감겨지는 것을 특징으로 하는 방법.15. The material according to claim 14, characterized in that the material exiting from the substantially flat planar die (23) is wound on the rail (35) after passing through the cold receiving roll (30) to form the plate-shaped product (29). How to. 제15항에 있어서, 판상제품(29)이 드로우비를 조정하는 롤(33)을 통해 리일(35) 위에 감겨 지는 것을 특징으로 하는 방법.16. The method according to claim 15, wherein the plate-shaped product (29) is wound on the rail (35) via a roll (33) for adjusting the draw ratio. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890004863A 1989-04-12 1989-04-12 Manufacturing method of shrinking product KR900015888A (en)

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KR1019890004863A KR900015888A (en) 1989-04-12 1989-04-12 Manufacturing method of shrinking product

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KR1019890004863A KR900015888A (en) 1989-04-12 1989-04-12 Manufacturing method of shrinking product

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