摘要:
Two resin members are provided, at surfaces to be joined, with side surfaces, respectively. The side surfaces and the side surfaces are substantially parallel with respect to an opposing direction of the resin members. After the side surfaces are heated and fused by infrared heaters movably arranged in the vicinity of the respective side surfaces, the side surfaces are joined together under pressure.
摘要:
An internal molding having a predetermined shape of a hollow portion of a manifold is integrally molded by blow molding or the like, and external molding elements having a predetermined shape of the exterior of the manifold and being split into a plurality of parts are molded. The internal molding is integrated with the external molding elements by adhesion or fusion. Further, an external molding is molded, and an internal molding having a shape substantially identical with or smaller than a predetermined shape of a hollow portion of the hollow resin molding is integrally molded. Then, the internal molding is softened by arranging the internal molding inside the external molding and heating the internal molding, and the inside of the internal molding is thereafter pressurized to cause the internal molding to contact the external molding, so that the internal molding is integrated with the external molding. Still further, an internal molding is integrated with an external molding elements by an appropriate joining means. Then, a flange member is fitted to a first connecting portion formed by the respective external molding elements and the internal molding. Still further, an internal molding is integrated with an external molding elements by an appropriate joining means. Then, a seal member is inserted into a gap portion at an end portion of the hollow resin molding as well as between the external molding and the internal molding.
摘要:
A method of manufacturing a protective sheath made of laminated material based on fibers impregnated with resin, the method making use of a cylindrical draping mandrel, wherein:at least two longitudinal elements are provided on the mandrel to project from the periphery thereof, which elements are disposed substantially along diametrically opposite generator lines of the mandrel, dividing the mandrel into two longitudinal semicylindrical portions;a first sheet of flexible laminated material is placed on one of the semicylindrical portions of the mandrel, with the longitudinal margins of the sheet overlying the longitudinal elements;a second sheet of flexible laminated material is placed on the other semicylindrical portion, with the longitudinal margins thereof overlying the longitudinal margins of the first sheet and the projecting longitudinal elements;the first and second sheets are pressed against the outside surfaces of the semicylindrical portions by means of a pressure difference;both sheets are hardened, thereby defining two semicylindrical half-shells which are interfitted in each other along their respective longitudinal margins, which margins fit over the profile of the elements and form external longitudinal swellings; andthe two half-shells are removed from the mandrel.
摘要:
A tubular body formed by joining two semi-tubular portions that are divided in radial direction, the tubular body having a connection flange portion provided with a bolt hole on at least one end portion. The two semi-tubular portions have joint projection portions at both edge portions in circumferential direction, the joint projection portions projecting in radial direction and extending in axial direction, and each joint projection portion of the semi-tubular portions on at least one of both sides in circumferential direction is configured to be bent so as to deviate from a virtual division face passing a central axis in such a manner that a joint portion formed by abutting the joint projection portions does not interfere with a tool for fastening a bolt inserted into the bolt hole in a predetermined area in the vicinity of the bolt hole of the connection flange portion.
摘要:
First and second semi-finished molded articles and a third semi-finished molded article are molded simultaneously so as to have joint end faces by using a slide die, a fixed die, and first and second slide cores fitted to the fixed die. The slide die with the third semi-finished molded article remaining thereon is moved toward the first and second slide cores, and their respective joint end faces are registered. Heating surfaces are inserted between the joint end faces. After melting the joint end faces, the heating surfaces are retracted, and the molding device is closed to weld the joint end faces.
摘要:
A method of producing hollow plastic components, such as for air conduction in internal combustion engines, in which two or more molded or hollow body members are manufactured using injection molding technology, are thereupon brought together and are joined together using plastic welding technology.
摘要:
The present invention is to provide a synthetic weld body which sectional shape of a passage to a bore can be an ideal shape by welding two synthetic members. The edge at the passage side of the rising boundary line 78a-1, 78a-2, 78b-1, 78b-2, 78c-1, 78c-2, 78d-1, 78d-2 which is the boundary between the top end connecting face and the mount connecting face of the middle member 70 is disposed at or in the vicinity of a contact point of the tangent line of the ridge line 84 of the mount connecting face at the passage side with the inner edge of the top end connecting face 74a, 74b, 74c, 74d at the bore 50a, 50b, 50c, 50d side. The rising boundary line 78a-1, 78a-2, 78b-1, 78b-2, 78c-1, 78c-2, 78d-1, 78d-2 including the edge at the passage side is parallel to the standard direction for vibration.
摘要:
An oil strainer comprises upper and lower partial bodies, made of synthetic resin, joined together to form a roughly tube-shaped strainer main body, the interior of which is provided with a filter. The oil strainer has a flange section for attachment with bolts, and the flange section is provided with at least one bolt hole which passes through the interior of the roughly tube-shaped strainer main body. With this structure, it is possible to provide an oil strainer which can be installed on a small installation surface, which is able to reduce resin fatigue, and which can prevent impairment of the seal due to loosening of installation members.
摘要:
A catheter having at least two lengths of tubular material axially joined together by a welded joint with no perceptible change in diameter at the welded joint; the welded joint including a substantial axially oriented seam between the two lengths of material.
摘要:
A liquid supply member for supplying a liquid to a liquid discharge head having a discharge port which discharges a liquid, includes: a first member consisting of a resin material; a second member consisting of a resin material; and a supply path formed by joining the first member and the second member to each other, the supplying path supplying a liquid to the liquid discharge head, wherein at least a part of an internal surface of the supply path is a smooth surface smoothed by melting the resin after being molded.