173results about How to "Reliable joint" patented technology

This substrate for power modules is obtained by laminating and bonding a copper plate, which is formed of copper or a copper alloy, onto the surface of a ceramic substrate (11). A nitride layer (31) is formed on the surface of the ceramic substrate (11) between the copper plate and the ceramic substrate (11). An Ag-Cu eutectic structure layer (32) having a thickness of 15 [mu]m or less is formed between the nitride layer and the copper plate.

A cart for an escalator, wherein a cart body (5) comprises caster wheels (7) rotatable in all directions about vertical rotating axes. A copying mechanism (6) is engaged with an escort rail (3) to maintain the cart body (5) in a specified attitude. Contact parts (8) fitted to the cart body (5) are brought into contact with the rise face (2c) of a step (2) to separate the caster wheels (7) from the rise face (2c).

The invention is a method to mount glass curtain wall of building, during building construction, and in the place of building wall to be mounted with glass curtain wall and/or erect surface of the column, setting the supporting structure extending outward in a spacing and layered mode, to mount the frame construction of the curtain wall glass, which is linked with the supporting structure through the linking structure. Its advantages: it can realize the layered processing of structure load of the glass curtain wall, reduce the use number of aluminium alloy connecting and buttoning pieces by a large margin, reduce the fracture surface of the aluminium alloy frame system, and thin the wall thickness properly, and convenient, simple and more safe and reliable to construct, etc.

The invention provides a tyre cord layer jointing device and jointing method. Accordingly, tyres with excellent high-speed uniformity can be manufactured at a high production rate without needing reserving a relatively large amount of rubber among cords or pre-cutting the two edges of each cord layer in a mode that even a relatively small overlapped part can still reliably joint the cord layers with a stable strength. The tyre cord layer jointing device comprises an elevating part and an elevating unit. Needle-shaped projections are distributed on the elevating part at specified intervals along the width direction of the two cord layers. Each of the cord layers is formed by using unvulcanized rubber to cover a cord arrangement body which is formed by parallelly arranging the cords. The elevating unit enables the needle-shaped projections to spur the overlapped part until the front end parts of the needle-shaped projections penetrate through the overlapped part. Moreover, the elevating unit enables the elevating part to lower down to make the unvulcanized rubber of one cord layer invade into the other cord layer and then enables the elevating part to rise up to pull the needle-shaped projections out of the overlapped part after the spurring.

The invention discloses a centrifugal speed limiting differential mechanism, and belongs to the technical field of automobile differential mechanisms. A planet gear shaft is divided into two sections. The two sections of planet gear shaft are supported and installed at the upper end and the lower end of a planet wheel through conical roller bearings respectively and extend in an inner cavity wall of an outer shell. A lock sleeve and a centrifugal fly weight device are arranged at the two close ends of the two sections of planet gear shaft respectively. A part abutting against the centrifugal fly weight device is arranged on the outer side of the lock sleeve. An engaging fluted disc is arranged on the two close ends of two spline half shafts. A matching structure matched with the lock sleeve is arranged on the outer side of the engaging fluted disc. According to the centrifugal speed limiting differential mechanism, the rotating speed difference of the left half shaft and the right half shaft can be automatically inducted, and the speed limiting differential function is achieved. Centrifugal fly weight type automatic induction is achieved, the structure is simple, and functions are liable. Separation and union of the differential fluted disc is achieved through the friction function, reliable jointing under the high rotating speed is achieved, and meanwhile destructive impact is avoided. The wedge self-locking type engaging fluted disc is adopted, and a certain self-locking function is achieved after jointing.

The invention relates to a braking force generator (10), for a hydraulic vehicle braking system, comprising a force introduction member (14), which is or may be coupled to a brake pedal (P) and which may be mounted in a base housing of the brake force generator (10), a main brake cylinder, in which a primary piston (64), for generation of a hydraulic braking pressure, runs in a displaceable manner, a pedal counter-force simulation device (106), coupled to the force introduction member (14), a pedal operation recording device (150), for recording a pedal operation and an operation force generation device, for exerting an operating force on the primary piston (64), whereby the operating force generation device comprises a control valve (22), a chamber arrangement (16) and an electromagnetic actuator (48). The chamber arrangement (16) is embodied with a vacuum chamber (30) and a working chamber (32), separated from the vacuum chamber (30) by a moving wall (28), in fluid connection to each other by means of the control valve (22) and the control valve (22) is operated according to the recorded pedal operation.

The invention discloses a steel belt reinforced composite lap joint belt material for a plastic-steel wound pipe. The belt material at least comprises a belt material unit, wherein the belt material unit comprises a substrate and at least one rib plate; the rib plate is arranged vertical to the substrate; a steel belt is arranged on the rib plate; the rib plate is connected to the substrate; and one side of the substrate is provided with a joint part which has a flat structure and is at least provided with a joint bump. The design mode of an occlusal surface is provided, so that belt materials are jointed more stably and reliably, a weld face is prevented from cracking, and welding intensity and the quality of a tubular product are ensured.

Provided is a substrate with a cooler for power modules, which is prevented from the occurrence of deformation during brazing of a metal layer that is formed from copper or a copper alloy to a cooler that is formed from aluminum, and which has low thermal resistance and high bonding reliability. A circuit layer that is formed from copper or a copper alloy is bonded to one surface of a ceramic substrate, while bonding a metal layer that is formed from copper or a copper alloy to the other surface of the ceramic substrate. A second metal layer that is formed from aluminum or an aluminum alloy is bonded to the metal layer by solid-phase diffusion, and a cooler that is formed form an aluminum alloy is joined to the second metal layer by brazing with use of an Mg-containing Al-based brazing filler material.

The invention discloses a control valve. A magnetic ring component is arranged in a valve body sleeve and is connected with an output shaft of a driving motor; a magnetic core component is embedded on the inner side of the magnetic ring component, the lower end part of the magnetic core component is used for pressing against or separating from an overflow channel between a valve inlet and a valve outlet to realize the opening and closing of the valve; and under the action of the driving motor, the magnetic ring component moves in the sleeve axially and drives the magnetic core component to move axially. The invention also discloses a valve. A valve body is provided with a separation part which divides an inner chamber of the valve body into an inlet chamber and an outlet chamber; the side wall of the inlet chamber and the outlet chamber of the valve body at a position connected with the separation part is provided with a valve port; the opening end on the lower part of a valve cover is sealed and connected with the outer surface of the valve body at the periphery of the valve port; a piston is arranged in a valve cover accommodating chamber; the control valve is fixedly arranged on the valve cover; a second overflow channel is arranged between the outlet chamber of the valve body and the valve cover accommodating chamber above the piston; and the lower end part of the magnetic core component of the control valve is used for pressing against or separating from the second overflow channel.

The invention provides a device capable of replacing a valve under pressure. The device comprises a plugging device, a combining part, a blowout prevention pipe, a hydraulic cylinder, a piston rod and an operating rod. One end of the combining part is detachably connected to the plugging device, and the blowout prevention pipe contains the plugging device and the combining part and is connected with the hydraulic cylinder. The plugging device is mainly composed of a sealing rubber sleeve, a slip bowl seal assembly, a differential pressure type piston and slips, the slips can be automatically unfolded through fluid pressure, and thus safe bowl seal is achieved. One end of the combining part is connected with the hydraulic cylinder through the piston rod and the operating rod which penetrate through the blowout prevention pipe. The invention further provides a method for replacing a valve under pressure with the device capable of replacing a valve under pressure. The device achieves seal, bowl seal, seal removal and internal pressure balance of a tool, the complex functions can be continuously and automatically completed in one travel, and thus the device is easier and more reliable to operate. Uncertainty caused by manual operation is reduced, safety in the construction process is guaranteed, no pollution will be caused to the environment, and construction cost is greatly reduced.

The invention relates to a knot device (13) having a first path for an end of a first thread bundle (16) and a second path for an initial thread of a second thread bundle (22), wherein the second path (21) ), which is hollow and has a suction opening, the first path is arranged in front of the suction opening, the suction opening is connected to a suction device (20) and the mandrel (17) is displaceable relative to the first path.