61results about How to "No processing required" patented technology

The present invention is applicable to the technical field of inkjet printing equipment, and discloses a conveying platform device of an inkjet printing machine, which is used to be installed on the frame of the inkjet printing The ink printing unit is arranged oppositely, and the conveying platform device includes an assembly frame, a conveyor belt backing plate of equal thickness laid flat on the assembly frame, driving rollers and driven rollers respectively installed at both ends of the assembly frame, and a set The conveyor belt laid between the driving roller and the driven roller and on the conveyor belt backing plate, the assembly frame includes a frame and a plurality of conveyor belts laid side by side on the frame along the moving direction of the conveyor belt backing plate. In the present invention, the assembly frame is arranged to include a frame and a plurality of backing plates laid side by side on the frame along the moving direction of the conveyor belt, and the backing plates of the conveyor belt are flat plates of equal thickness, thereby ensuring the flatness of the supporting plane of the conveyor belt, Make the conveying device precise and stable when conveying the medium, so as to achieve better inkjet printing effect.

A near-α-type titanium alloy and a preparation method thereof belong to the technical field of titanium alloy processing. The nearly α-type titanium alloy contains components and the mass percentage of each component: Al is 5.0-6.5%, Sn is 2.0-3.0%, Zr is 3.0-4.0%, Mo is 0.3-0.6%, and Si is 0.3%. ~0.6%, Y is 0.1~0.3%, and the balance is Ti. It is prepared by powder metallurgy billet, hot extrusion molding and subsequent vacuum annealing. Through the powder metallurgy process, segregation can be eliminated and the influence of uneven composition can be avoided. The obtained billet can be directly followed by molding without processing; combined with the hot extrusion process, the defect of low density of powder metallurgy can be eliminated, and at the same time, it can be formed at one time. The final shape of the product is directly extruded to reduce the amount of subsequent processing; the subsequent vacuum annealing process will improve the stability of the alloy. Finally, the application standard is reached.

The invention relates to a high frequency multilayer circuit board hole conduction technology comprising the steps that multiple internal single-layer boards and two external single-layer boards are prepared, the internal single-layer boards and the external single-layer boards comprise a copper layer, a base layer and a low adhesive layer, the internal single-layer boards and the external single-layer boards are provided with positioning holes through the copper layer, the base layer and the low adhesive layer, and internal lines are formed in the copper layers of the internal single-layer boards; conduction holes are arranged on each internal single-layer board and each external single-layer board by using a laser method so that the conduction holes on the internal single-layer boards are enabled to be connected with the internal lines and the conduction holes on the external single-layer boards are enabled to be connected with the copper layer of the external single-layer boards; copper conductors are filled in the conduction holes so that the copper conductors are enabled to be connected with the internal lines of the internal single-layer boards or the copper layer of the external single-layer boards; and multiple internal single-layer boards and two external single-layer boards are combined and connected and external lines are manufactured on the copper layer of the external single-layer boards so as to form the high frequency multilayer circuit board. Compared with the technologies in the prior art, the high frequency multilayer circuit board hole conduction technology is simple and practicable and low in cost.

The invention discloses a bearing related to a telescopically extensible boom (1), comprising an outer arm (5) with a front end and an inner arm (6) which is arranged in the front end and can be moved axially inside the outer arm (5). The outer arm and the inner arm comprise square tubes. Flat surfaces of the inner arm (6) extend along corresponding flat surfaces of the outer arm (5), and the boom (1) has four longitudinal sides. The bearing comprises a bearing box (10) designed as a casing with four walls (10a to 1Od) which together form a square tube structure. The bearing box (10) comprises a plurality of sliding bearings (l1a to 11d, 12a to 12d) and is inserted into the front end of the outer arm (5) between the outer arm (5) and the inner arm (6). The sliding bearings (l1a to 11d, 12a to 12d) are arranged in the walls (10a to 1Od) of the bearing box (10) and are applied against the corresponding flat surfaces of the outer arm (5) and the inner arm (6), wherein the flat surfaces extend along each other. Arranged adjustment devices (15, 20, 17a to 17c) which are related to at least one wall (10a to 10c) and are axially arranged are used for adjusting the gap between at least one sliding bearing (11a to 11c, 12a to 12c) and the applied surfaces of the inner arm (6) and the outer arm (5).