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50results about How to "Slow down depreciation" patented technology

Forging machining method of large-sized bar materials of TC4 (Ti-6Al-4V) titanium alloy

The invention relates to bar material forging machining method of titanium alloy, particularly to a forging machining method of large-sized bar materials of TC4 (Ti-6Al-4V) titanium alloy. The forging machining method is characterized by comprising the following steps of step 1, performing cogging forging, step 2, performing intermediate forging above a phase transformation point, step 3, performing intermediate forging below the phase transformation point, step 4 and step 5, performing finished product forging and obtaining the phi 200 to 300 mm and 2000 to 3000 mm length of large-sized bar materials of the TC4 titanium alloy finally. Compared with the prior art, a large-sized ingot casting and a large-tonnage forging device are not required and the industrialized production can be achieved through an ordinary industrial 3 ton ingot and a small-tonnage forging press and the equipment investment is small, only a 3 tons of electric arc furnace and a 3000 tons of forming oil press which is matched with the electric arc furnace need to be invested in the phi 600 of 3 ton ingot, the small-tonnage forging press such as a 1600 tons of forging press needs to be invested in the forging process, and accordingly the equipment investment is significantly reduced.
Owner:宁夏中色金航钛业有限公司

Mixed child-mother core assembly molding technology

The invention discloses a mixed child-mother core assembly molding technology. A 3D printing molding technology and a sand mixing molding technology are combined, a part which is close to a product part having a plurality of structural features adopts 3D printing, and the other parts which have less structural features adopt the traditional sand mixing molding technology method, therefore an assembled sand mold which works through cooperative using of a mother core and a child core is formed. Based on the advantages of an original 3D printing molding technology, a traditional sand mixer production technology is introduced, the two molding technologies are combined with each other, further the cost of raw materials and the equipment investment cost are lowered, and meanwhile, child-mother separated core combination is conducted on a sand molding part which is brought out of a casting and the mold thickness which is brought out of a casting system and improves the strength so as to widen thinking for later multi-technology combination; the number of castings in a single sand box is increased, the sand box utilization ratio and the production efficiency are improved, the dependence on manual work is reduced at the same time, the cost of 3D printing raw materials and the depreciation of the equipment are reduced, and meanwhile, waste of molten iron is avoided, and the purposes of cost reduction and efficiency improvement are achieved.
Owner:四川共享铸造有限公司

Heat pipe, manufacturing method of heat pipe and equipment comprising heat pipe

The invention discloses a heat pipe, a manufacturing method of the heat pipe and equipment comprising the heat pipe, mainly relates to a capillary core of the heat pipe and a manufacturing method of the capillary core, and belongs to the technical field of heat conduction. According to the manufacturing method, a positioning tool and a metal net are mainly used, metal powder is arranged and limited in a specific space position in a pipe shell, and the technical problems that in the sintering process in which a traditional method is adopted, the metal powder is bonded with a core rod, when thecore rod is pulled out after sintering, the capillary core is prone to damage, and even a waste product occurs, and the technical problems that core rod is used for separating the reducing atmospherefrom the metal powder, so that the reducing effect is poor, secondary sintering is generally needed, and the energy consumption and the thermal pollution are large can be comprehensively or correspondingly solved; and the technical situations that the capillary core of the sintered layer is damaged due to the deformation processes of bending, flattening and the like can be relieved or avoided, andthe process route in which bending is carried out first, and then sintering is carried out can be realized. The method is applied to manufacturing of the heat pipes (including hot columns and ultra-thin heat pipes). The heat pipe is applied to equipment or a device requiring heat transfer or heat dissipation through the heat pipe.
Owner:刘康

Machining method for 5-12 oz thick copper power circuit board drilling

InactiveCN104607684AAvoid glitchesThere will be no problem of blocking the vacuum lineThermodynamicsCopper
The invention belongs to a machining method for 5-12 oz thick copper power circuit board drilling. The machining method is characterized by comprising the following steps that firstly, when the drilling diameter is larger than 2.0 mm , a drill bit 3 with the diameter phi of 1.55 mm is selected, and a first pre-drill hole 4 with the diameter phi 1of 1.55 is drilled; secondly, after the first pre-drill hole 4 with the diameter phi 1 of 1.55 is drilled and when the difference between the designed drilling diameter and the diameter of 1.55 mm of the first pre-drill hole is larger than 0.45-0.6 mm, a drill bit with the diameter phi 2 of 1.55 mm plus 0.45-0.6 mm is selected to drill a second pre-drill hole; thirdly, equally, when the difference between the diameter of the second pre-drill hole and the designed hole diameter is larger than 0.45-0.6 mm, a drill bit with the diameter phi3 to which phi 2 plus 0.45-0.6 mm equals is selected to drill a third pre-drill hole; fourthly, the rest can be done in the same manner till the difference between the pre-drill hole diameter and the designed hole diameter is smaller than or equal to 0.45-0.6 mm, and a drill bit with the diameter equal to the designed hole diameter is selected to finish the final sequential machining. Copper scraps do not block a vacuum pipe, the machining precision is high, and cost is saved.
Owner:DALIAN CHONGDA CIRCUIT

A kind of forging processing method of tc4 titanium alloy large size bar

The invention relates to bar material forging machining method of titanium alloy, particularly to a forging machining method of large-sized bar materials of TC4 (Ti-6Al-4V) titanium alloy. The forging machining method is characterized by comprising the following steps of step 1, performing cogging forging, step 2, performing intermediate forging above a phase transformation point, step 3, performing intermediate forging below the phase transformation point, step 4 and step 5, performing finished product forging and obtaining the phi 200 to 300 mm and 2000 to 3000 mm length of large-sized bar materials of the TC4 titanium alloy finally. Compared with the prior art, a large-sized ingot casting and a large-tonnage forging device are not required and the industrialized production can be achieved through an ordinary industrial 3 ton ingot and a small-tonnage forging press and the equipment investment is small, only a 3 tons of electric arc furnace and a 3000 tons of forming oil press which is matched with the electric arc furnace need to be invested in the phi 600 of 3 ton ingot, the small-tonnage forging press such as a 1600 tons of forging press needs to be invested in the forging process, and accordingly the equipment investment is significantly reduced.
Owner:宁夏中色金航钛业有限公司

Processing method of instant vacuum dried penaeus aztecus

The invention discloses a processing method of instant vacuum dried penaeus aztecus. The method mainly comprises the following steps of (1) material selection, (2) cleaning, (3) water boiling, (4) vacuum pickling, (5) vacuum critical low-temperature drying and (6) sealing package. The penaeus aztecus is used as the raw materials, the vacuum pickling and the vacuum critical low-temperature drying are adopted, the vacuum pickling conditions include the vacuum degree being 70000Pa to 85000Pa and the pickling time being 5.5 hours to 6 hours, the vacuum critical low-temperature drying condition includes the vacuum degree being 200Pa to 400Pa, the heating is not needed in the initial period, the penaeus aztecus is subjected to temperature reduction and dewatering natural drying under the vacuum effect, the drying time is 0.8 to 1 hour; in the middle period stage, the temperature of a drying machine is regulated to 65 to 70 DEG C, and the state is maintained for drying for 6.5 hours to 7hours; and finally, the temperature of the drying machine is regulated to 45 DEG C to 50 DEG C, and the state is maintained for drying for 1.5 hours to 2 hours. The process has the advantages that the penaeus aztecus browning, oxidation browning and high-temperature Maillard reaction browning can be effectively prevented, the active ingredient content and the color of the dried penaeus aztecus are perfectly maintained, the hardness is proper, the chewy effect is realized, and better popularization and application values are realized.
Owner:FUZHOU JINFULIN FOOD

Molecular film fermentation method of bio-organic fertilizer

InactiveCN112939698ALow fermentation infrastructure requirementsImprove qualityBio-organic fraction processingExcrement fertilisersBiotechnologyPoultry manure
The invention relates to a molecular film fermentation method of a bio-organic fertilizer. The method comprises the following specific steps: crushing fermentation raw materials livestock and poultry manure and carbon organic wastes; uniformly mixing organic zymophyte, brown sugar and water to prepare a microbial inoculum, and spraying the microbial inoculum into the fermentation raw materials; pushing into a fermentation tank, piling, and covering with a molecular film for fermentation; and fermenting for 15-25 days to reach an odorless state, namely completely fermenting and thoroughly decomposing. The bio-organic fertilizer is free of pathogenic bacteria, worm eggs, weed seeds and other diseases and pests, and it is ensured that after the molecular film fermentation organic fertilizer is applied, soil is not polluted, weeds are not grown, and germs and pests are not brought to crops. Ammonia, hydrogen sulfide and other nutrient-containing substances generated in the fermentation process are fully retained in the compost. Organic matters in the fermentation raw material carbon organic wastes are fully and effectively mineralized and converted into humic acid, so that the organic matters which can be utilized by crops and are useful for soil are fermented.
Owner:福建泉智生物科技有限公司
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