There are provided a synthetic resin joined body and a method of manufacturing the same, with which it is possible to secure both of sealing performance of a fluid passage and joint strength between synthetic resin parts, even if an area of a portion to be welded is reduced. The synthetic resin joined body includes: a baffle plate; an oil passage forming member which comes in contact with the baffle plate; an oil passage which is formed between the baffle plate and the oil passage forming member and through which lubricant flows; a sealing portion which is formed by welding the baffle plate and the oil passage forming member to each other on an outer side of the oil passage to seal a periphery of the oil passage; and a joint portion for joining the baffle plate and the oil passage forming member to each other.

A bonded object manufacturing apparatus is for manufacturing a bonded object in which a first object and a second object, which is more flexible than the first object, are bonded by a bonding agent, viscosity of which is variable, and includes: a bonding agent supplier that supplies the bonding agent to a first or second bonding surfaces; a thickening unit that increases the viscosity of the bonding agent; and a loading unit that applies a load to and deforms the second object against the bonding agent that closely adheres to the first bonding surface and becomes harder than the second object. In a method for manufacturing a bonded object, the first and second bonding surfaces are brought close to each other to hold the bonding agent therebetween, the bonding agent closely adheres to a required portion of the first bonding surface, and the second object is loaded and deformed against the bonding agent that closely adheres to the first bonding surface and is harder than the second object.

A bonded object manufacturing apparatus is for manufacturing a bonded object in which a first object and a second object, which is more flexible than the first object, are bonded by a bonding agent, viscosity of which is variable, and includes: a bonding agent supplier that supplies the bonding agent to a first or second bonding surfaces; a thickening unit that increases the viscosity of the bonding agent; and a loading unit that applies a load to and deforms the second object against the bonding agent that closely adheres to the first bonding surface and becomes harder than the second object. In a method for manufacturing a bonded object, the first and second bonding surfaces are brought close to each other to hold the bonding agent therebetween, the bonding agent closely adheres to a required portion of the first bonding surface, and the second object is loaded and deformed against the bonding agent that closely adheres to the first bonding surface and is harder than the second object.

A ultrasonic welding method of joining dissimilar-material workpieces, such as sheet materials, and the joined components formed thereby. The method includes applying ultrasonic energy to a thermoplastic piece to fill a hole of a dissimilar piece to form a weld point that is made up with polymer from the thermoplastic piece. In general, the geometry of the thermoplastic piece is not altered during the process. The dissimilar piece generally has a higher melting temperate and can be metal, thermoset polymers, or other thermoplastic material. The welded pieces can be arranged in a lap, laminate, or double lap configuration. In some embodiments, the hole of the dissimilar sheet material includes undercut features that improve the mechanical interlock between the dissimilar pieces. In some embodiments, the weld point has a mushroom cap to improve mechanical interlock.

The present disclosure relates to methods for making elastomeric laminates that may be used as components of absorbent articles. Aspects of the methods for assembling elastomeric laminates may utilize elastic strands supplied from beams that may be joined with first and second substrates, and may be configured to carry out various types of operations, such as bonding and splicing operations.

The present disclosure relates to methods for making elastomeric laminates that may be used as components of absorbent articles. Aspects of the methods for assembling elastomeric laminates may utilize elastic strands supplied from beams that may be joined with first and second substrates, and may be configured to carry out various types of operations, such as bonding and splicing operations.

A welding method for welding a first component to a second component using a welding device including an upper tool mounted to an upper support for receiving the first component, a lower tool mounted to a lower support for receiving the second component as well as a preheating arrangement for preheating the first and/or the second component and a controller. A welding device in accordance with the welding method is further provided.

A system for coupling pipes includes a first pipe having a tapered, spigot end; a second pipe having a tapered, spigot end; a coupler having two tapered socket ends adapted to internally receive the respective tapered, spigot ends of the first pipe and the second pipe; and a resistive element. The first pipe, the second pipe, and the coupler are made from a reinforced thermosetting resin (RTR). The resistive element includes a first layer and a second layer of thermoplastic material; and an electrically conducting resistive heating element with positive and negative terminals for connecting electrical power. The electrically conducting resistive heating element is sandwiched by the first layer and the second layer of thermoplastic material. The resistive element is disposed between an interior of the coupler and at least one of: an exterior of the first pipe and an exterior of the second pipe. Upon application of electrical power to the positive and negative terminals of the resistive element, the electrically conducting resistive heating element generates heat sufficient to melt the thermoplastic material such that, when the heat is removed, the hardened thermoplastic material seals the first pipe and/or the second pipe to the coupler.

Methods for ultrasonic welding of thermoplastic polymer workpieces and assemblies made therefrom are provided. The method may comprise disposing a first region of a first thermoplastic polymer workpiece and a second region of a second thermoplastic polymer workpiece between an ultrasonic horn and an anvil of an ultrasonic welding device. The first workpiece has a preformed deformation and at least one of the first and/or second workpieces has an adhesive precursor applied thereto. The ultrasonic horn or anvil seats within the preformed deformation. Ultrasonic energy is applied from the ultrasonic horn to create a weld nugget between the first and second workpieces. The assembly thus formed has a green strength sufficient to be further processed immediately. The methods provide a robust weld joint with controlled adhesive bondline thickness.

The present protective barrier is similar to those commonly installed beneath ceilings during construction work being performed on ceilings or roofs of buildings, wherein two or more sections are sewn together to construct the protective barrier. However, the present protective barrier also comprises a dustcover, which covers the seam entirely preventing dust from passing through holes created when the seam is sewn using a thread or similar means.