100results about How to "Easy solder connection" patented technology

The invention discloses a soldering device for forming an electrical soldering point in a magnetic disc driver. The soldering device comprises a nozzle device, an actuating device, a solder ball feeding device, a pressurized gas feeding device and a laser generator, wherein the nozzle device comprises at least two separated movable casings; a passage is formed by the two casings; an inlet is formed by the upper ends of the two casings; a nozzle is formed by the lower ends of the two casing; the actuating device is connected with the nozzle device, and is used for controlling the two casings of the nozzle device to move close or separate so as to control the inside diameter of the nozzle; the solder ball feeding device is used for delivering a solder ball at the inlet or the nozzle to the passage; the pressurized gas feeding device is used for feeding pressurized gas into the passage to control the falling speed of the solder ball in the passage; and the laser generator is used for emitting laser to the passage so as to melt and return the solder ball. According to the soldering device, the size of the nozzle is controllable, so as to facilitate soldering.

The invention relates to a connecting structure between a water chamber and a main leaf of a novel automobile radiator. The connecting structure comprises an upper water chamber (3), an upper main leaf (4), a lower water chamber (9) and a lower main leaf (11); wherein, a circle of outer folded-edges I (3.1) extending outwards are arranged on the lower edge of the upper water chamber (3), relative to the circle of the outer folded-edges I, a circle of inner folded-edges I (4.1) are vertically arranged on the outer edge of the upper main leaf (4), and the outer folded-edges I (3.1) on the lower edge of the upper water chamber (3) are closely covered outside the circle of inner folded-edges I (4.1) on the outer edge of the upper main leaf (4), and fixedly connected in a braze welding way; a circle of outer folded-edges II (9.1) extending outwards are arranged on the upper edge of the lower water chamber (9), relative to the circle of the outer folded-edges II, a circle of inner folded-edges II (11.1) are upward vertically arranged on the outer edge of the lower main leaf (11), and the outer folded-edges II (9.1) on the upper edge of the lower water chamber (9) are closely covered outside the circle of the inner folded-edges II (11.1) on the outer edge of the lower main leaf (11), and are fixedly connected in a braze welding way. By adopting the connecting method that the main leaves are loaded in the water chambers, the outline of the product is an integral structure on the construction, therefore, the water chambers are firmly welded with the main leaves.

The invention relates to a method for producing a piston (10, 110, 210) for an internal combustion engine, characterized by the following steps: a) producing an upper piston part (11, 111, 211) having at least one joining surface (21, 22; 121, 122), b) producing a lower piston part (12, 112, 212) having at least one joining surface (23, 24; 123, 124), c) establishing a direct contact between the at least one joining surface (21, 22; 121, 122) of the upper piston part (11, 111, 211) and the at least one joining surface (23, 24; 123, 124) of the lower piston part (12, 112, 212), d) heating the upper piston part (11, 111, 211) and the lower piston part (12, 112, 212) in the region of the joining surfaces (21, 23; 22, 24; 121, 123; 122, 124) brought in direct contact by induction or by a direct current flow through the joining surfaces (21, 23; 22, 24; 121, 123; 122, 124), and (e) connecting the upper piston part (11, 111, 211) and the lower piston part (12, 112, 212) to form a piston (10, 110, 210) by means of a pressing process and optionally finishing the piston (10, 110, 210).

The invention relates to an automobile heater, which comprises a water feeding chamber(3), a drain chamber(8), a water inlet pipe(1), a main leaf(4), a side board(5), a heat dissipation belt(7) and a flat tube(6); wherein a plurality of tooth bits (4.1) meshed at the bottom edge (3.1) of the water feeding chamber(3) and the drain chamber(8) are arranged at the periphery of the main leaf(4) at the joint between the water feeding chamber(3) and the drain chamber(8); two bulges (5.1) or elbows (5.2) are respectively arranged at the sidewall of the position of the side board(5) corresponding to both ends of the heat dissipation belt(7); a lug (4.2) occluded at the terminal of the side board(5) is positioned at the joint between the terminal of the side board(5)and the main leaf(4); a buffer plate(9) is arranged between the water outlet of the water inlet pipe(1) and the water inlet of flat tube(6) facing to the water outlet of the water inlet pipe(1). The automobile heater has the advantages that: the connection between the water chambers and the main leaf is firm, which can prevent the part melting and dropping of the heat dissipation belt in the process of welding production; the connection between the side board and the main leaf can be firm and reliable; and can make balanced water feeding flow of all flat tube.