A welding mechanism for welding different blank sections includes a welding device and a carrier. The carrier has a base, two opposite positioning members, an operating set disposed between the positioning members and driven by a power source, and a holding member and a pushing member which are respectively disposed relative to the positioning members. The blank sections, including a front section and a rear section, are separately placed on the operating set. The front section is restricted by the holding member. The pushing member pushes the rear section, so the two sections meet at a joint. When the two sections rotate synchronously along with the rotation of the operating set, the welding device welds the two sections at the joint circumferentially to produce a bi-compositional screw, thereby preventing the generation of air and pores inside the joint after welding, increasing processing quality, and reducing processing costs.

A method of making an expansion anchor comprising the steps of: providing a metal rod having a thread along at least part of its outer surface; adapting the metal rod to obtain a required length of metal rod; welding an expansion section to an end of the obtained length of metal rod; and providing an expansion sleeve which in use interacts with the expansion section for increasing the expansion sleeve diameter. An expansion anchor comprising a threaded rod part, an expansion section welded to an end of the rod part and an expansion sleeve which in use interacts with the expansion section for increasing the diameter of the expansion sleeve.

A method of making an expansion anchor comprising the steps of: providing a metal rod having a thread along at least part of its outer surface; adapting the metal rod to obtain a required length of metal rod; welding an expansion section to an end of the obtained length of metal rod; and providing an expansion sleeve which in use interacts with the expansion section for increasing the expansion sleeve diameter. An expansion anchor comprising a threaded rod part, an expansion section welded to an end of the rod part and an expansion sleeve which in use interacts with the expansion section for increasing the diameter of the expansion sleeve.

An electronic device includes one or more multinode pads having two or more conductive segments spaced from one another on a semiconductor die. A conductive stud bump is selectively formed on portions of the first and second conductive segments to program circuitry of the semiconductor die or to couple a supply circuit to a load circuit. The multinode pad can be coupled to a programming circuit in the semiconductor die to allow programming a programmable circuit of the semiconductor die during packaging. The multinode pad has respective conductive segments coupled to the supply circuit and the load circuit to allow current consumption or other measurements during wafer probe testing in which the first and second conductive segments are separately probed prior to stud bump formation.

A method of making a heat exchanger that includes sealing tubes to header slots and brazing the tubes to the header slots. The method further includes coupling a cover to the header to cover a liquid-side surface of the header and to cover ends of the tubes, and applying flux to an air-side surface of the header and to the tubes. Coupling the cover to the header is performed after sealing the tubes to the header slots and coupling the cover to the header is performed before applying flux to the air-side surface of the header and to the tubes. Applying flux is performed before brazing each of the tubes to the header slots and sealing each of the tubes to the header slot includes sealing a perimeter of each of the tubes to the header slot.

A fence panel comprises a first frame rail that includes a first beam portion and a first fin that is adjacent to the first beam portion, and a barrier component attached to the first fin. A resistance weldment may reside at the attachment between the barrier component and the first fin. The first fin may be integral with the first beam portion. The first frame rail and the first fin may comprise a single roll form or a single extrusion.

A bonding system for bonding a semiconductor element to a substrate is provided. The bonding system includes a substrate oxide reduction chamber configured to receive a substrate. The substrate includes a plurality of first electrically conductive structures. The substrate oxide reduction chamber is configured to receive a reducing gas to contact each of the plurality of first electrically conductive structures. The bonding system also includes a substrate oxide prevention chamber for receiving the substrate after the reducing gas contacts the plurality of first electrically conductive structures. The substrate oxide prevention chamber has an inert environment when receiving the substrate. The bonding system also includes a reducing gas delivery system for providing a reducing gas environment during bonding of a semiconductor element to the substrate.

A welding structure capable of rotational movement and a welding method for the same are introduced. The welding structure capable of rotational movement includes a seat member and a rotational movement member. The seat member has a welding portion. The rotational movement member is movably fitted to the seat member. The rotational movement member has a pressing portion for welding the welding portion to an object; thus, the rotational movement member undergoes rotational movement while the pressing portion is pressing against a pressed object, thereby causing displacement of the object. Therefore, the welding structure capable of rotational movement and the welding method for the same exhibit enhancement of ease of use, labor saving, and convenience.

A welding structure capable of rotational movement and a welding method for the same are introduced. The welding structure capable of rotational movement includes a seat member and a rotational movement member. The seat member has a welding portion. The rotational movement member is movably fitted to the seat member. The rotational movement member has a pressing portion for welding the welding portion to an object; thus, the rotational movement member undergoes rotational movement while the pressing portion is pressing against a pressed object, thereby causing displacement of the object. Therefore, the welding structure capable of rotational movement and the welding method for the same exhibit enhancement of ease of use, labor saving, and convenience.

The invention provides a pneumatic conveying system having a series of supply lines with at least portions of the lines being wear resistant to extend the useful lifespan of an agricultural product delivery applicator. The wear resistant supply line(s) may be made from a hard material and have a curve(s) defined by angled or mitered segments that are welded or otherwise joined to collectively provide the curve(s) The wear resistant supply lines may be at least partially reinforced by way of, for example, welded or other build up wear resistant material(s) at high wear zones of the supply lines.