KR950009043A

KR950009043A - Joining method of joint socket of polyetch lan tube for water supply

Info

Publication number: KR950009043A
Application number: KR1019930018762A
Authority: KR
Inventors: 박홍수
Original assignee: 김인식; 주식회사 동원프라스틱
Priority date: 1993-09-17
Filing date: 1993-09-17
Publication date: 1995-04-21

Abstract

본 발명은 상수도용 폴리에치랜관의 이음소켓 접합방법에 관한 것으로, 종래의 상수도관의 이음소켓의 접합방법은 직관을 예열하지 않고 금형에 의하여 단순히 직관의 표면에 이음소켓을 성형 접합시키었기 때문에 접합강도가 높지 못하여 이음소켓에 다른 직관을 끼워 관을 이을 때 이음소켓이 직관에서 물러날 우려가 있는 문제점이 있었다. 본 발명은 종래의 이러한 문제점을 시정하기 위하여 상수도용 폴리에치랜관의 직관(1)의 선단주면에 감합용환상요흠(2)을 형성하고 이부분을 소정의 온도로 예열한 다음, 외부금형(5)과 내부심형(6)에 의하여 직관(1)의 단부에 경사돌조(7')가 결합된 이음소켓(7)을 환상요흠(2)에 일체로 결합되게 사출 성형하여 접합함을 특징으로하여 직관(1)과 이음소켓(7)이 물리적으로 화학적으로 강하게 접합하여 이음소켓(7)에 다른 직관을 끼워 가압하여 접합할 때 이음부분이 긴밀하고 안전하게 접합할 수 있게 한 것이다.The present invention relates to a method of joining the joint socket of a polyetch lan tube for water supply, and the conventional method of joining the joint of a joint pipe of a water supply pipe is because the joint is simply molded on the surface of the straight pipe by a mold without preheating the straight pipe. There was a problem that the joint socket withdraws from the straight tube when the joint strength is not high because the joint strength is not connected to the joint socket. The present invention forms a fitting annular recess (2) on the tip circumferential surface of the straight pipe (1) of the water supply poly etch lan tube in order to correct the conventional problems, and preheat this part to a predetermined temperature, and then the external mold ( 5) and the inner core (6) by the injection molding to join the joint (7) inclined protrusion (7 ') coupled to the end of the straight pipe (1) integrally to the annular recess (2), characterized in that the joining When the straight pipe (1) and the joint socket (7) is physically and chemically strongly bonded to the joint by pressing another straight pipe to the joint socket (7) to allow the joint portion to be tightly and securely bonded.

Description

Joining method of joint socket of polyetch lan tube for water supply

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

제1도는 본 발명의 직관 선단부의 증기 예열상태를 보인 예시도,1 is an exemplary view showing a steam preheating state of the straight end portion of the present invention,

제2도는 본 발명의 직관의 선단부의 전열 예열 상태를 보인 예시도,2 is an exemplary view showing a heat transfer preheating state of the distal end portion of the straight pipe of the present invention;

제3도는 본 발명의 직관의 선단부에 이음소켓 금형을 결합한 상태를 보인 예시도,3 is an exemplary view showing a state in which the joint socket mold is coupled to the front end of the straight pipe of the present invention;

제4도는 본 발명의 이음소켓의 접합성형의 완성된 상태의 단면도.4 is a cross-sectional view of the completed state of the joint molding of the joint socket of the present invention.

Claims

In integrally molding the joint socket to the water pipe polyetchran straight pipe, a fitting annular recess (2) is formed on the tip circumferential surface of the straight pipe (1) to increase the bonding force, and the outer circumferential surface thereof has a temperature of 200-300 ° C. After preheating for 5-10 minutes, the joint 7 is integrally connected with the inclined protrusion 7 'at the distal end of the straight pipe 1 by the outer mold 5 and the inner core 6, such as straight pipe. A method of joining a joint socket of a polyetch lan tube for water supply, characterized in that the injection molding is made of a molten synthetic resin material.

※ Note: The disclosure is based on the initial application.