43results about How to "Smooth surface quality" patented technology

A cutting insert 1, 1′, comprising opposite insert planes E1, E2 of a base 2 of one base area 3 wherein a conical surface section 4a of a lateral face 4 and the base area 3 facing the same form an acute angle alpha while forming a cutting edge 5, while a planar surface section 4b of the same lateral face 4 forms an obtuse angle beta with the opposite base area 3. The cone axis 6 of the conical surface area 4a lying in the insert plane E1, E2 runs off-set in parallel to the center insert axis 7 lying in the same insert plane E1, E2 while forming an off-center arcuate profile of the cutting edge 5. A milling cutter 17 comprising a number of such cutting inserts 1, 1′ is characterized in that a cutting insert 1, 1′ preferably disposed on the periphery of the center line M of a tool support 16 is off-set from the center line M by an angle phi equal to 5±3 degrees. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

The invention relates to underground comprehensive pipe rack construction, in particular to a continuous construction method for an aluminum alloy template for a comprehensive pipe rack. The continuous construction method comprises the following steps that A, first-time pouring construction of a first-section comprehensive pipe rack body is conducted; B, second-time pouring construction of the first-section comprehensive pipe rack body and first-time pouring construction of a second-section comprehensive pipe rack body are conducted at the same time; C, form removal of the first-section comprehensive pipe rack body is conducted; D, second-time pouring construction of the second-section comprehensive pipe rack body is conducted; and F, first-time pouring construction of a third-section comprehensive pipe rack body is conducted. According to the continuous construction method, the continuous cyclic work is achieved, rapid turnover construction is achieved, the construction speed is increased, the construction period is shortened, construction materials are saved, and the construction environment is safer and more environment-friendly. Meanwhile, a concrete structure formed through the continuous construction method is flat and smooth in surface quality, the requirements of facing and bare concrete are met, secondary plastering is not needed, and the construction cost is saved.

The present invention discloses one kind of Al-Mg-Fe alloy for deoxidizing and desulfurizing molten steel. The Al-Mg-Fe alloy is produced through special pressure working, rather than smelting in a common induction furnace. It is one kind of energy-saving high purity alloy with alloy recovering rate as high as 100 %, no pollution and capacity of lowering steel deoxidizing and desulfurizing cost. It is suitable for deoxidizing and desulfurizing molten steel for making different steel products.

The invention discloses an electroslag remelting process of a nickel-based superalloy. The electroslag remelting process is characterized in that the superalloy comprises the components in percentageby mass: 15-20% of Cr, 15-20% of Co, 5-10% of Mo, 2-6% of W, 1-4% of Ta, 1-4% of Al, 2.2-2.5% of Ti, 1-5% of at least two of Fe, V, Nb and rare earth, and the balance Ni and inevitable impurities, wherein Fe, V, Nb and rare earth are selectively added. The electroslag remelting process adopts a specific slag system matched with specific voltage, current and cooling process.

The invention belongs to the technical field of aluminum alloy materials, and particularly relates to a cold-rolled strip for a new energy battery aluminum-plastic film aluminum foil, and a preparingmethod of the cold-rolled strip. An aluminum ingot is subjected to semi-continuous casting after smelting and refining, heat-insulation still standing and refining, multi-pass degassing and multi-stage filtration; the cast ingot is subjected to heat-insulation homogenization heat treatment after being subjected to sawing and face-milling; the cast ingot is taken out of a furnace, subjected to hotrolling, then subjected to cold rolling, cleaning and intermediate annealing; and finally cold rolling is conducted, and a cold-rolled strip blank for the aluminum-plastic film aluminum foil is obtained after edge cutting. The cold-rolled strip has the clean surface and internal texture and has no thick and big mesophase compounds, no pinhole is generated after rolling is conducted till the thickness of the aluminum foil for an aluminum-plastic film reaches 20 to 40 [mu]m, and the use demands of the aluminum-plastic film in the aspects of the barrier property, the cold stamping forming property, puncture resistance, chemical stability and insulativity are met.

The invention discloses a micronano-sized micro hole machining tool. The micronano-sized micro hole machining tool comprises a machining tool base, a cutting device, a multi-degree-of-freedom workbench system, a micronano microscope video system and a control system. The multi-degree-of-freedom workbench system is arranged on the machining tool base and comprises a workbench and a workbench driving device. The cutting device is arranged above the workbench. The micronano microscope video system is arranged on the machining tool base and located at one side of the multi-degree-of-freedom workbench system. The micronano microscope video system is used for performing image collection analysis on the machining process of workpieces on the workbench and transmitting collection analysis data to the control system. According to the micronano-sized micro hole machining tool, the micronano microscope video system is used for performing image collection analysis on the machining process of the workpieces on the workbench and transmitting the collection analysis data to the control system in time, the control system gives out control instructions to the cutting device and the multi-degree-of-freedom workbench system according to the collected workpiece machining information, and hence machining precision and finished product quality are improved.

The invention relates to the technical field of the preparation of a three-way pipe, in particular to a forging backward extrusion technology of the three-way pipe, comprising the steps of (1) extrusion of a forge bar: heating the forge bar to a forging temperature according to the material of the forge bar, horizontally placing the forge bar at the position corresponding to a main pipe in a three-way pipe forging mould, synchronously extruding and perforating the two ends of the forge bar by using two top cylinders, and performing backward extrusion on the main pipe in the forging mould to form a bump while forming the main pipe; and (2) performing backward extrusion and perforation by an upper top cylinder: using the upper top cylinder to perform backward extrusion and perforation downwards from the upward side of the bump, so as to form the three-way pipe. Compared with the prior art, the invention uses an integrated forging mould, ensures one-step molding, reduces technical energy consumption, greatly improves production efficiency, also cleans surface scale, and ensures smooth surface quality, proper product shape molding and excellent size. The height of the prepared branched pipe is increased by 30-60% compared with original technologies, so that welding and shooting are convenient; the pipe does not expand and explore easily; and the safety performance of running equipment is improved.

The invention discloses RTV anti-contamination flashover paint coating equipment for a porcelain or glass umbrella or bell jar shaped insulator. The equipment comprises a main frame, a machine head rotary frame, a reducing frequency conversion motor and a fast insulator connector. The machine head rotary frame is rotationally connected to the main frame through a rotary shaft and bearing seats of two ends; the reducing frequency conversion motor is fixedly arranged on the machine head rotary frame; the output shaft of the reducing frequency conversion motor is connected to the fast insulator connector. The equipment has the advantages that the dip-coated porcelain or glass insulators of different specifications are stable in quality, the surfaces are smooth and are free of bubbles, the coating layers are free of accumulation and drop hanging, and the thickness is even; in the dip-coating process, the VOC emission amount is small, and the production is environment-friendly and safe; the dip-coating automation level is high, operation is easy, factories of the porcelain or glass insulators of different specifications can implement porcelain and glass insulator industrial automatic RTV anti-contamination flashover paint coating production through the equipment, and large amount of cost can be saved.

The invention discloses a manufacture method for a seamless steel tube. The method is used for manufacture of austenite type free-cutting wear resistant stainless steel. The method comprises the following steps: 1) carrying a primary pickling for a blank material; 2) carrying out grinding, rolling-drawing combination, oil removing for the pickled blank material; 3) determining whether the resulting material meets the requirements of the finished product, wherein the resulting material is subjected to an intermediate product solid solution heat treatment, straightening and pickling, and the step 2) is repeatedly performed if the resulting material does not meet the requirements of the finished product; 4) carrying out a finished product solid solution heat treatment, straightening and fixed finished product cutting if the resulting material meets the requirements of the finished product; 5) carrying out pickling for the finished product. The temperature of the intermediate product solution heat treatment and the temperature of the finished product solid solution heat treatment are 1010-1150 DEG C, and a rapid cooling treatment is performed after the intermediate product solution heat treatment or the finished product solid solution heat treatment is performed, wherein the temperature of the intermediate product solution heat treatment is 1040-1150 DEG C, and the temperature of the finished product solid solution heat treatment is 1020-1100 DEG C. According to the present invention, the seamless steel tube manufacture method with characteristics of energy saving and simple process is provided; the technical problems in the prior art are solved; the yield and the whole product quality are improved, and especially the surface quality is improved, wherein the tensile strength Rm is more than or equal to 540 Mpa, the stipulated non-proportional extension strength Rp0.2 is more than or equal to 240 Mpa, the elongation at break A is more than or equal to 40%, and the rockwell hardness HRB is less than or equal to 90; the smooth surface can be achieve after pickling so as to provide the organization preparation for the next process, wherein the surface roughness Ra is less than or equal to 1.00 mum.

The invention relates to the anti-sticking agent technical field, and particularly relates to a metal surface treatment anti-sticking agent prepared from the following raw materials in parts by weight: 8-16 parts of hydroxyl silicone oil, 10-20 parts of polyaspartic acid, 5-10 parts of alkyl glycoside, 8-18 parts of polytetrafluoroethylene, 5-10 parts of polyamideimide resin, and 10-20 parts of deionized water. The metal surface treatment anti-sticking agent is reasonable in composition, obvious in effect and stable in chemical properties, can effectively prevent adhesion between layers of a metal strip, and also has the function of corrosion resistance; the metal product surface quality is bright and clean; and the anti-sticking agent has good levelling property and thixotropy, meets processing at various temperatures, and can be used for a long time.

The invention relates to a method for doping modified polyimide containing nano fullerene, wherein the method comprises the following steps: firstly, reacting diamine with dianhydride in an organic solvent to obtain polyamide acid; adding amino-acid ester or substituted amino-acid ester modified nano fullerene, and uniformly mixing to obtain a polyamide acid/fullerene precursor solution; and coating the precursor solution to prepare a film, and performing high-temperature thermal imidization to obtain the polyimide/fullerene hybrid film. According to the method, the storage stability of the polyamide acid solution can be effectively improved, and particularly, the problem of viscosity reduction caused by molecular chain degradation at a relatively high storage temperature can be inhibited; and meanwhile, due to the introduction of the nano fullerene, and on the basis of not influencing the surface smoothness of the polyimide film, the scratch resistance and the heat-conducting property of the film material are improved.

Provided is a novel metal welding method. The method comprises: firstly, welding a bulge on a to-be-welded position of a first metal material, and then using a resistance welding machine or an electrode holder whose upper electrode and lower electrode are flat electrodes to weld the first metal material with the bulge with a second metal material. The design enlarges application range, improves strength of a welded joint and surface quality, and reduces production cost and prolongs service life of the electrodes.

The invention discloses a stepless variable curvature abrasive belt grinding tool head which comprises a support plate bearing device, a power device, a stepless variable curvature device, a sealing device, a tensioning gear and an abrasive belt. The abrasive belt is driven by an abrasive belt drive motor and is supported by driving wheels, idle wheels, the tensioning gear, a support roller and a stepless variable curvature device. During the grinding process, rotating angle of the variable curvature motor is adjusted for changing curvature size of grinding position of stepless variable curvature contact wheel. A feed screw nut structure in the stepless variable curvature device can keep the curvature size for realizing stepless variable curvature grinding function. The sealing device adapts change of the curvature and prevents pollution to the interior structure of the stepless variable curvature device from the dust. The curvature change of the contact wheel is mild and the curvature change range is great.

The invention belongs to the technical field of metal product production, and relates to a high-carbon chromium bearing steel wire rod production method free of pickling after spheroidizing annealing. The method comprises the steps that a continuous casting billet is obtained through converter smelting, LF refining, VD vacuum treatment and continuous casting; then, the continuous casting billet is subjected to heat insulation pit slow cooling, in-furnace heating, high-pressure water dephosphorization, controlled rolling, controlled cooling, collecting and packaging, finishing, and inspection; and finally spheroidizing annealing and drawing are performed. During annealing treatment, a hot-rolled wire rod is heated to 790-810 DEG C, cooled to 690-720 DEG C after heat preservation, cooled to 600-650 DEG C again after heat preservation at the cooling speed less than or equal to 20 DEG C/h, and finally discharged to be cooled. The wire rod is drawn without surface treatment to obtain a wire rod product. The thickness of the oxidized scale of the wire rod is increased to 14 microns or above, the proportion of Fe3O4 in the oxidized scale is increased to 30% or above from original 15-20%, the performance is good, and abnormal phenomena such as uneven carbides are not found.

The invention discloses a hydrogen-rich circulating annealing process for a cold-rolled oil drum plate, which is characterized in that a steel coil comprises the following chemical components: 0.04-0.08% of C, 0.02-0.03% of Si, 0.26-0.33% of Mn, less than 0.01% of P, less than 0.005% of S and the balance of Fe and residual elements, the oil drum plate cold-rolled steel coil subjected to hot rolling and cold rolling is placed on a furnace platform of a cover type annealing furnace, an inner cover is buckled firstly, then a heating cover is buckled, a medium pipeline is connected, nitrogen is used for purging air, hydrogen is used for purging nitrogen, and the steel coil is subjected to hot rolling and cold rolling; two heat preservation processes of 430 DEG C and 680 DEG C are adopted, heat preservation is conducted for 3 hours at the temperature of 430 DEG C, annealing and heat preservation are conducted for 7 hours at the temperature of 680 DEG C, recrystallization temperature annealing is conducted, hydrogen tail gas discharged in the annealing process is collected through a main pipeline, hydrogen with the hydrogen purity being 99.999%, the dew point being-65 DEG C or below and the oxygen content being 5 ppm or below is obtained, and hydrogen recycling is achieved. And the annealed steel coil is subjected to flattening treatment with the elongation of 1.1%, the surface of the steel coil is cleaned with flattening liquid with the concentration of 3%-5%, and the high-surface oil drum plate product is obtained.