The first electrode section (7a) and the second electrode section (7b) are formed such that the outer portion connected to the upper portion of the heating section (6) is thinner than the inner portion connected to the lower portion of the heating section (6). The heating section (6) and the first electrode section (7a) are interconnected by an R-shaped first connecting portion (21). The inner circumferential sloping surface of the heating section (6) and the second electrode section (7b) are interconnected by an R-shaped second connecting portion (22). The first and second connecting portions (21)(22) are formed such that R becomes larger from the upper end to the lower end, where the upper portion is thin and the lower portion is thick. The thickness of an intermediate portion (6b) is smaller than the thicknesses of the first and second connecting portions (21)(22).

The disclosure presents a wind turbine blade and a method of manufacturing a wind turbine blade, wherein the wind turbine blade is manufactured as a composite structure comprising a reinforcement material embedded in a polymer matrix, the method comprising: providing a first blade mould with a first blade shell part having a leading edge, a trailing edge, and a first leading edge glue surface at the leading edge, the first blade mould comprising a first leading edge flange; providing a second blade mould with a second blade shell part having a leading edge, a trailing edge, and a second leading edge glue surface at the leading edge, the second blade mould comprising a second leading edge flange; applying glue to a leading edge glue surface; providing one or more leading edge spacer elements at a leading edge flange; arranging the second blade mould on the first blade mould, such that the one or more leading edge spacer elements are arranged between the first leading edge flange and the second leading edge flange; applying a pressure to the second blade shell part; and curing the glue.

A blade shell part for a wind turbine blade and a wind turbine blade are disclosed. The blade shell part is made of a composite structure comprising a reinforcement material embedded in a polymer matrix, the blade shell part extending from a tip end to a root end, wherein the blade shell part comprises: a blade shell body with a leading edge and a trailing edge, and a first glue flange extending from the leading edge and having a first glue flange edge and a first glue surface with a first width, wherein the first glue flange is provided with one or more spacer elements. Further, a method of manufacturing a wind turbine blade is described.

A protrusion (71) of a case (7) is inserted into a groove (9) on which a wire (10) is placed. The case (7) is pressed toward the bottom of the groove (9) until a brush holder (5) and a stepped surface (72) come into contact with each other while the bottom of the groove (9) is heated by heat generation of the wire (10), in which a clearance (C1) between the brush holder (5) and the stepped surface (72) is smaller than a clearance (C2) between an exterior case (3) and a stepped surface (73).

A method of joining components of a wind turbine blade involves the use of an adhesive arrestor rail positioned at the side of a joining surface of a first member of a wind turbine blade, the rail arranged to form an acute angle to a second opposed joining surface of a second member of a wind turbine blade. The arrestor rail acts to retain flowable adhesive within the bonding area between two joining surfaces, ensuring a full and complete bond is provided between the blade members. The rail provides a valve action, deflecting to allow for excess adhesive to extrude past the rail, indicating that the bonding area between the joining surfaces is filled with adhesive. The arrangement of the arrestor rail results in a tapering edge of the adhesive bond layer between two members. The arrangement provides a reduced likelihood of substantial crack formation in the adhesive bond layer.

A method of manufacturing a Coriolis mass flowmeter from a polymeric material is described, in which a dynamically responsive manifold is fabricated from the same material as the flow sensor's flow-sensitive elements. The flowmeter is free of mechanical joints and adhesives. The manifold and flow-sensitive elements therefore do not slip or change their location relative one another, nor are they subject to differing degrees of thermal expansion that would otherwise undermine integrity, reliability, and/or accuracy of the boundary condition at the ends of the vibrating flow-sensitive elements.

Provided is a thermal caulking method of melting, at one time, a plurality of bosses 33 of a second member 30 protruding toward an inner circumferential surface of a conical hollow portion 11 of a first member 10 while being fitted to a plurality of holes 132 provided in the inner circumferential surface of the hollow portion 11 of the first member 10 having the substantially conical hollow portion 11 so that the plurality of bosses are joined to the first member 10, in which the plurality of bosses 33 are melted at one time by using a heat chip 51 having a continuous shape in the circumferential direction of the hollow portion 11 along the inner circumferential surface and are joined to the first member 10 while the adjacent melted bosses 33 are connected to each other.

A water-soluble insert for use in joining pipes, made of a material comprising a salt selected from the group consisting of KCl, Na Cl, and mixtures thereof; and MgO. Upon addition of a small amount of water to the material, the MgO reacts with hygroscopic impurities in the chloride salt to provide a material with superior properties. The insert is cast from the material, in general by being placed on a form and compressed. Also disclosed is the use of the insert in joining the ends of two pipes, especially pipes made from thermoplastic. The insert is placed in the matching pipe ends, which are then welded. After the join is complete, water is flowed through the pipe, dissolving the insert.

The first electrode section (7a) and the second electrode section (7b) are formed such that the outer portion connected to the upper portion of the heating section (6) is thinner than the inner portion connected to the lower portion of the heating section (6). The heating section (6) and the first electrode section (7a) are interconnected by an R-shaped first connecting portion (21). The inner circumferential sloping surface of the heating section (6) and the second electrode section (7b) are interconnected by an R-shaped second connecting portion (22). The first and second connecting portions (21)(22) are formed such that R becomes larger from the upper end to the lower end, where the upper portion is thin and the lower portion is thick. The thickness of an intermediate portion (6b) is smaller than the thicknesses of the first and second connecting portions (21)(22).

An air spring component includes at least two parts, which have corresponding joining areas. The joining areas are connected to one another in an adhesive-bonded manner in an inert atmosphere. The air spring component can be a rolling piston, a supplementary volume container for the rolling piston or an air spring pot.