7results about How to "Stable strength" patented technology

The application belongs to the field of steel material and its preparation technology, and discloses a high strength and toughness steel plate for liquid hydrogen storage and transportation and a preparation method thereof. The mass percentage of each chemical component is controlled and the film-like reversed austenite formation tendency index is satisfied. Through reasonable component proportioning, high cleanliness smelting, continuous casting, rolling and heat treatment synergic control, a dual-phase structure of tempered martensite and film-like reversed austenite is obtained, the volume fraction of the film-like reversed austenite is 8% to 20%, and the volume fraction of the block or island-like reversed austenite is not more than 3%. The steel plate has the room temperature yield strength of greater than or equal to 600 MPa, the tensile strength of greater than or equal to 750 MPa and the impact energy of greater than or equal to 70 J at-253 DEG C in the thickness range of 6 to 50 mm, the structure and performance in the thickness direction are uniform, the steel plate has high strength, super-low temperature high toughness and excellent hydrogen damage resistance, and is suitable for liquid hydrogen storage tanks and related low-temperature pressure vessels.

The invention discloses an automatic laser cutting machine and method for nonmetal cutting, and relates to the technical field of laser cutting machines. The automatic laser cutting machine for nonmetal cutting comprises a shell, a three-dimensional five-axis laser cutting machine is installed on the top wall of the shell, and a plurality of inclined air channels are formed in the outer side of the shell in the circumferential direction of a window at equal intervals; the moving-through control device is used for communicating the first inner cavity and the second inner cavity where one window is located and completing waste gas absorption and contact surface cooling, and the filtering device is used for filtering impurities. According to the automatic laser cutting machine and method for non-metal cutting, the supporting shell is matched with a special-shaped piece opening hole through the window, the inner wall is stably supported to prevent collapse and deviation, circumferential uniform cooling and cutting gas dust absorption are synchronously achieved through an inner cavity of the window, a moving cylinder moves to enable a through hole to only communicate with an assembly of a to-be-cut station, the station is rapidly switched, time is saved, and the working efficiency is improved. And airflow is intensively utilized, the equipment energy consumption is reduced, and the stable cold suction effect is ensured.

The utility model provides a handle of a seeder, which comprises a handle body, the handle body is movably provided with a button, the button is provided with a support, the support is movably provided with a movable part, the movable part is fixedly provided with a connecting belt, the movable part is provided with a clamping block and a connecting arm, the connecting arm elastically abuts against the support through a first spring, and the handle body is movably provided with a knob. The knob is fixedly connected with a special-shaped wheel, the clamping block movably abuts against the special-shaped wheel, the handle body is provided with a supporting arm, and the supporting arm elastically abuts against the support through a second spring. The special-shaped wheel is spiral, the knob is rotated to drive the special-shaped wheel, so that the initial position of the clamping block is adjusted, the initial position of the movable part is controlled, the initial compression amount of the first spring is adjusted, and the support pushes the movable part to move through the first spring, so that the acting force of the button on the movable part is stable; the force acting on the blanking switch is stable, so that the blanking speed of the seeder is stable, and the seeding uniformity is improved.

The invention belongs to the technical field of steel and iron materials and preparation thereof, and discloses a high-toughness steel plate for liquid hydrogen storage and transportation and a preparation method thereof. And the mass percentage of each chemical component is controlled and a film-shaped inverted austenite formation tendency index is met. A tempered martensite and film-shaped inverted austenite dual-phase structure is obtained through reasonable component proportion and cooperative control over high-cleanliness smelting, continuous casting, rolling and heat treatment, the volume fraction of the film-shaped inverted austenite is 8%-20%, and the volume fraction of blocky or island-shaped inverted austenite is not larger than 3%. The steel plate has the room-temperature yield strength larger than or equal to 600 MPa, the tensile strength larger than or equal to 750 MPa and the impact energy larger than or equal to 70 J at the temperature of-253 DEG C within the thickness range of 6-50 mm, the structure and performance in the thickness direction are uniform, high strength, ultralow-temperature high toughness and excellent hydrogen damage resistance are achieved, and the steel plate is suitable for liquid hydrogen storage tanks and related low-temperature pressure containers.

This utility model discloses a pressing and nailing assembly for automotive headlight assembly, including a bracket, a six-axis vertical multi-joint industrial robot, and a fixing plate. The bracket is used to install on the required processing table, and a top plate for fixing is welded to the top of the bracket. This utility model utilizes the flexible motion trajectory and high motion speed of the six-axis vertical multi-joint industrial robot, which can quickly and accurately drive the pressing mechanism to complete the pressing action, gradually improving the assembly efficiency of automotive headlight pressing and making it suitable for large-scale production needs. When the concave frame is driven by a cylinder to move the jaws, the two sets of connecting pins on the jaw surface slide along the guide holes of the positioning frame with the sliding wheels, achieving precise constraint of the pressing trajectory, effectively avoiding pressing deviation, uneven force, and other problems, and significantly improving the consistency and pass rate of automotive headlight assembly. The pressure gauge on the pressing air control box can display pressure data in real time, making it easy for operators to keep track of the equipment's operating status.

The utility model discloses a resistance wire implanter which comprises a feeding vibration disc, a supporting clamping jaw, a clamping clamping jaw, a lifting clamping jaw, a guide plate and a positioning jig, a resistance wire is placed in the feeding vibration disc, the feeding vibration disc is used for feeding the resistance wire in a vibration mode, the supporting clamping jaw supports the resistance wire fed by the feeding vibration disc, the clamping clamping jaw is used for clamping the resistance wire, and the positioning jig is used for positioning the resistance wire. The guide plate is used for guiding the resistance wire to enter a product main body, the clamping clamp is used for clamping the supported resistance wire, the lifting clamping jaw is used for lifting the clamped resistance wire, the guide plate is used for guiding the resistance wire to enter the product main body, and the product main body is arranged on the side wall of the positioning jig. The whole resistance wire implanting operation is highly automatic, the implanting efficiency is high, the air cylinder is used for controlling the clamp to clamp the resistance wire, the force is stable, and the resistance wire is not prone to deformation.