8results about How to "Avoid cracks or even breakage" patented technology

The invention provides a pole, a cover plate assembly and a single battery, and relates to the technical field of batteries. The pole comprises a body, the body is provided with a first surface, and the first surface is provided with a tab welding groove; the tab welding groove is provided with a groove side wall, the groove side wall is configured to be in contact with the tab of the single battery, and the plane where the groove side wall is located gradually inclines towards the axis of the pole along the direction far away from the first surface. According to the scheme, the bending angle of the tab when the tab is in contact with the groove side wall can be reduced, so that obvious stress concentration at the bending part of the tab is avoided, and cracks and even fractures at the bending part of the tab can be effectively avoided. Therefore, the structural integrity of the tabs can be ensured, so that the current-carrying capacity of the tabs is improved, the overcurrent capacity between the tabs and the pole columns is improved, and the performance of the single battery can be further improved.

The invention belongs to the technical field of concrete pipe installation, and mainly discloses installation equipment for a socket type reinforced concrete pipe. The length of an existing U-shaped lifting appliance cannot be adjusted in a self-adaptive mode according to the length of a pipeline. Comprising a U-shaped frame; the supporting rod is connected to the U-shaped frame in a sliding manner; the driving motor is installed on the U-shaped frame, an output shaft of the driving motor is fixedly connected with a threaded rod, and the threaded rod is rotationally connected with the U-shaped frame; the inserting block is connected to the supporting rod in a sliding manner and is in extrusion fit with the threaded rod; the lifting ring is arranged on the U-shaped frame; and the intercepting mechanism is arranged on the supporting rod and used for blocking the pipeline. The length of the U-shaped frame is increased through movement of the supporting rods, then the contact area of the U-shaped frame and the pipeline is increased, it is guaranteed that the inner wall of the pipeline makes full contact with the U-shaped frame, the pipeline is prevented from inclining in the hoisting process, and then the situation that the pipeline is cracked or even broken due to uneven stress is avoided.

This application discloses an adjustable frame assembly, belonging to the technical field of frame assembly. It includes four symmetrically arranged channel steel legs, each with a support column at its bottom; and a mounting frame fixedly disposed between the two channel steel legs, with two channel steel legs symmetrically arranged on each side of the mounting frame. This application utilizes a sliding support column on the inner side of the channel steel legs and adjusts the support height of the support column by incorporating an adjustment component inside the channel steel legs. This results in higher strength for the support column and adjustment component under the horizontal limiting action of the channel steel legs, requiring only the adjustment component to vertically press the support column. Therefore, it effectively solves the problem that traditional welding or bolted connections may cause cracks or even breakage during the operation of large, heavy equipment, affecting the stability of safe operation. This achieves vertical support at the bottom of the frame to prevent cracks or breakage at the stressed connection.

This utility model belongs to the field of axle housing technology and discloses a heavy-duty truck axle housing, including an axle housing body, a flange connected to the axle housing body, a mounting base, an upper leaf spring seat, and a lower leaf spring seat connected to the axle housing body. The upper leaf spring seat and the lower leaf spring seat are respectively provided with upper mounting holes and lower mounting holes, and are respectively provided with upper leaf spring filling and reinforcing surfaces and lower leaf spring filling and reinforcing surfaces. The upper leaf spring seat is connected to a large arc transition rib, which is connected to the axle housing body. The upper leaf spring seat is also connected to a flange side transition rib, which is connected to the axle housing body. The lower leaf spring seat is connected to a connecting rib, which is connected to the axle housing body. This utility model enhances the overall structural strength of the axle housing, enabling the axle housing to stably bear loads under complex working conditions such as heavy loads and bumps, avoiding the problem of fatigue cracks or even fracture failure at the contact point between the axle housing and the leaf spring seat, and improving the load-bearing capacity and service life of the axle housing.

This application provides a method for cutting a semiconductor device. The semiconductor device includes a ceramic substrate and an electronic chip. An epoxy resin layer encapsulates the electronic chip on the ceramic substrate. In the vertical direction, the projected area of ​​the epoxy resin layer is smaller than the projected area of ​​the ceramic substrate, and there is a distance between the epoxy resin layer and the edge of the ceramic substrate. The cutting method includes the following steps: coating an anti-adhesion layer on the edge of the ceramic substrate, the anti-adhesion layer and the epoxy resin layer being located on the same side of the ceramic substrate and horizontally away from the epoxy resin layer; covering the epoxy resin layer and the anti-adhesion layer with an adhesive ultraviolet film, in the vertical direction, the projected area of ​​the adhesive ultraviolet film being greater than or equal to the projected area of ​​the ceramic substrate; treating the anti-adhesion layer to reduce its adhesiveness; fixing the adhesive ultraviolet film to a base and cutting the ceramic substrate. The above method can avoid the large deformation and stress caused by the stretching of the ceramic substrate edge due to the height difference between different materials, thus preventing cracks or fractures.

This invention relates to the field of twin-roll thin strip casting and rolling technology, specifically disclosing a composite side sealing plate applied to the twin-roll thin strip casting and rolling process. The thermal conductivity, elastic modulus, and coefficient of linear expansion of the composite side sealing plate vary gradients along the thickness direction; or the thermal conductivity, elastic modulus, and coefficient of linear expansion of the composite side sealing plate vary gradients along the height direction. Therefore, when this composite side sealing plate is applied to the twin-roll thin strip casting and rolling process, it can effectively reduce the maximum thermal stress generated by the composite side sealing plate, avoid cracks or even fractures caused by the interaction between thermal stress and supporting force, and improve the service life of the composite side sealing plate.

This invention conforms to the field of concrete pipe installation technology, mainly pointing out an installation device for socket-type reinforced concrete pipes. It addresses the limitation of existing U-shaped lifting devices that cannot adaptively adjust their length according to the pipe length. The device includes: a U-shaped frame; a support rod slidably connected to the U-shaped frame; a drive motor mounted on the U-shaped frame, the output shaft of which is fixedly connected to a threaded rod, which is rotatably connected to the U-shaped frame; a plug block slidably connected to the support rod and engaging with the threaded rod; a lifting ring disposed on the U-shaped frame; and an intercepting mechanism disposed on the support rod for blocking the pipe. This invention increases the length of the U-shaped frame by moving the support rod, thereby increasing the contact area between the U-shaped frame and the pipe, ensuring complete contact between the inner wall of the pipe and the U-shaped frame. This prevents the pipe from tilting during lifting, thus avoiding uneven stress that could lead to cracks or even breakage.

The utility model discloses an automobile gasket with compression-resistant and wear-resistant functions, which relates to the field of automobile gaskets and comprises an upper gasket, a lower gasket is arranged on the outer wall of the upper gasket, a compression-resistant mechanism for preventing the gasket from deforming is arranged on the inner walls of the upper gasket and the lower gasket, and the compression-resistant mechanism comprises a bump fixedly mounted on the outer wall of the lower gasket. A damping cavity is formed in the outer wall of the upper gasket, damping blocks are arranged on the inner wall of the damping cavity, reinforcing ribs are arranged in the upper gasket and the lower gasket, connecting ribs are fixedly connected to the outer walls of the reinforcing ribs, and wear-resisting mechanisms used for preventing the surfaces of the gaskets from being worn are arranged on the outer walls of the upper gasket and the lower gasket. According to the automobile gasket with the compression-resistant and wear-resistant functions, the compression-resistant mechanism and the wear-resistant mechanism are arranged, so that the gasket is prevented from being deformed, cracked and even fractured due to overlarge local pressure, the compression resistance and the wear resistance of the gasket are greatly improved, wear caused by friction is effectively resisted, and the overall service life of the gasket is prolonged.