3results about How to "Does not break continuity" patented technology

The utility model relates to the technical field of friction stir welding components, in particular to a special concave device for preventing the end face of a friction stir welding knife handle from being abraded. The stirring device comprises a cutter handle and a stirring head coaxially installed at the front end of the cutter handle, an ejector pin bolt is coaxially matched with threads in the cutter handle, and the front end of the ejector pin bolt penetrates through the cutter handle and forms an abutting end used for directly abutting against the rear end of the stirring head. A locating ring groove is formed in the periphery of the ejector pin bolt, and a limiting pin which is distributed with the ejector pin bolt in a crossed mode and inserted into the locating ring groove is installed on the cutter handle. Abrasion of the front end of the cutter handle can be reduced, and welding quality reduction caused by backward movement of the stirring head is prevented.

The utility model discloses a highway indicating board, include: indicating board body, install embedded part on indicating board body, and the embedded part is welded with the adhesion layer, wherein, indicating board body includes the inner core layer, and the inner core layer outside is covered with panel layer, and the embedded part includes metal sheet, and the metal sheet middle part is installed with the connecting piece, the utility model discloses a highway indicating board body adopts the honeycomb inner core layer outside of suction plastic and is covered with continuous fiber prepreg panel layer heat pressure composite integrated molding, can effectively reduce overall weight while guaranteeing structural strength, and has higher corrosion -resistant performance and weather resistance, and can recycle and utilize, effectively reduced use cost, the embedded part is installed with the positioning groove to highway indicating board body, and then after the adhesion layer of the same material of indicating board body is set up, carries out integral hot pressure welding, and the whole is formed through the pressure welding of heating equipment pressure tight, can effectively improve installation efficiency, and will not damage material continuity while improving mechanical property.

The application discloses a heat treatment process of a thermodynamic auxiliary design Cu-Ni-Fe alloy, and belongs to the technical field of copper alloy heat treatment. The application constructs a thermodynamic model of the Cu-Ni-Fe alloy through first principle calculation, accurately matches the Fe element addition amount and heat treatment process parameters based on thermodynamic calculation, and realizes accurate regulation and control of the alloy organization and performance through steps such as homogenization, solid solution, quenching, grading aging, performance feedback closed loop optimization and the like. The application solves the problems of high development trial and error cost and poor strength and plasticity matching of the traditional Cu-Ni-Fe alloy, the prepared alloy has a tensile strength greater than 1000 MPa and a total elongation at break greater than 43%, and can be widely applied in the field of ocean engineering.