58results about How to "Guaranteed machinability" patented technology

The invention opened a preparing method of the cellulose fibre spinning stock solution. The solvent is the intermixture of the [BMIM]Cl and the [BMIM]BF4. The cellulose dissolves in the solvent after breaking up to get the uniform and transparent liquid. So it can save the energy, decrease the pollution and improve the quality of the stock solution.

The invention belongs to the technical field of magnesium alloy surface treatment, and relates to a process for preparing green ceramic membrane by micro-arc oxidation of a rare earth magnesium alloy. Using oil removaling, cleaning, washing, micro-arc oxidation coloring, hole sealing and drying for the surface of the rare earth magnesium alloy, thereby obtaining a series of ceramic membranes whose color are uniform and are from light green, medium green to dark green and are oxidized by micro-arc of SJDM-1 rare earth magnesium alloy. The ceramic membrane which is prerared through the process has an excellent wear resistance and hardness, at the same time the machinability of the ceramic membrane is further guaranteed, and the ceramic membrane has the characteristics of uniform colors, color diversity and the like.

The invention discloses a ceiling wet-process production line which comprises an automatic feeding mechanism, wherein the automatic feeding mechanism is connected with a glue rolling mechanism through an automatic conveyor belt; the glue rolling mechanism is connected with a composite mechanism through the automatic conveyor belt; a dust collector is also arranged in the composite mechanism; the composite mechanism is connected with a hot pressing mechanism through the automatic conveyor belt; the hot pressing mechanism is connected with a cutting mechanism through the automatic conveyor belt; the cutting mechanism is connected with a reserve tank through the automatic conveyor belt. The ceiling wet-process production line disclosed by the invention is simpler in processes, high in degree of automation and time and labor saving, and greatly improves the working efficiency; meanwhile, the cooperation among all the production line processes is compact, the environment configured on process equipment is further improved, and the production and processing quality of products is improved to the maximum extent.

The invention discloses the integrated crushing tooth of a grading crusher and a manufacturing method thereof, which is characterized in that the integrated crushing tooth takes alloy high manganese steel as a main raw material and adopts an integrated lost foam casting process; the center of the integrated crushing tooth (3) is provided with a tooth roller hole (5) with a key slot (4); the outer wall of the integrated crushing tooth (3) is provided with an outer circular tooth (6); and a hard alloy bar (2) is cast on the outer circular tooth (6). The integrated crushing tooth manufactured by the invention has the advantages of good strength and toughness, and higher hardness and abrasion resistance, can carry out the cutting machining and is suitable for manufacturing the crushing tooth of a tooth sleeve type grading crusher.

The invention discloses biologically-synthesized resin capable of controlling interfacial compatibility and application thereof and relates to biologically-synthesized resin and application thereof. The biologically-synthesized resin is prepared by, by weight percentage, 30-50% of resin, 0.5-5% of compatilizer, 0.5-3% of lubricating agent, 0.5-3% of oxidant and the balance of filler. The biologically-synthesized resin can be used for preparing degradable materials. By the preparation method of the biologically-synthesized resin, the surface appearance of biomass micro-powder can be controlled, good interfacial compatibility between the biomass micro-powder and a nonpolar resin base can be achieved, good moistening and interfacial combination between the biomass micro-powder and the nonpolar resin base can be achieved, interface combination strength is increased, internal defects of biologically-synthesized resin products are reduced, interface thickness is controlled, occlusion of the resin base on the surface and inside biomass is reduced, and the mechanical strength, stability, machinability, flexibility and ductility of the biologically-synthesized resin products are guaranteed.

The invention discloses a dismountable musical instrument Bawu with high intonation adjustability. The musical instrument Bawu comprises a Bawu pipe body and a sound mouth that is in sliding connection with the Bawu pipe body; and the connection part between the sound mouth and the Bawu pipe body is sealed. Sound holes are formed in the Bawu pipe body; and decoration heads are installed at the two ends of the Bawu pipe body. According to the dismountable musical instrument Bawu and the manufacturing process thereof, compared with the prior art, the musical instrument Bawu has the following beneficial effects: the musical instrument Bawu is made of a blood wood material, so that workability of the density and dimension of the Bawu can be guaranteed and the playing sensitivity can be improved and the playing difficulty of the player is reduced; once any intonation deviation occurs, the pipe body length is adjusted by moving the tone adjusting port, and after fine toning, the accurate tone tuning effect is realized; and dismounting becomes convenient and the process becomes simple.

The invention discloses a method for preparing a processable BN complex phase ceramic capable of improving the later-stage hardness, which comprises the following steps: adding active metals of aluminum or titanium and the like into the BN complex phase ceramic, and obtaining a compact sintered body through one-step sintering, wherein the hardness of the material is lower at that time, and the material can be processed into products with different shapes conveniently by adopting a common mechanical cutting method; and performing secondary heat treatment on the products so that the BN and the aluminum (titanium) generate a new hard ceramic phase in situ so as to greatly improve the hardness of the final products. The method has simple and easy technological processes and short sintering time. Besides, the method well solves the conflict between the processability and the hardness of the ceramic, and not only ensures the processability of the ceramic, but also keeps good characteristic of hardness of the ceramic.

The invention provides a glass-lined steel plate with excellent anti-scale explosion performance and a manufacturing method thereof. The mass percentages of chemical components in the steel are: C: 0.011% to 0.060%, Si: 0.08% to 0.20%, and Mn: 0.60% to 1.8%, P≤0.025%, S: 0.010%~0.045%, N: 0.003%~0.009%, Ti: 0.035%~0.20%, Cr: 0.05%~0.25%, Als: 0.005%~0.050%, Ti/ C: 1.5 to 3.5, and the rest are iron and unavoidable impurities. The continuous casting slab smelted according to the above composition ratio is heated to 1180-1250°C, and two-stage rolling is adopted. The rolling temperature in the rough rolling stage is ≥1100°C; 840 ~ 900 ℃, cumulative deformation ≥ 70%. After rolling, the steel plate is air-cooled or water-cooled to 600°C and slowly cooled in a pit. The obtained steel plate has excellent anti-scale explosion performance.

The present specification relates to: an ink composition comprising a first solvent represented by chemical formula 1 and a compound represented by chemical formula 2, or an ink composition comprisinga first solvent represented by chemical formula 1, a second solvent represented by chemical formula 3 or chemical formula 4, and a compound represented by chemical formula 2; an organic light-emitting device comprising the ink composition and a cured material thereof; and a manufacturing method therefor.

The invention provides an optical imaging lens. The optical imaging lens sequentially comprises from an object side to an image side along an optical axis, a variable diaphragm; a first lens; a second lens; a third lens; a fourth lens; a fifth lens, wherein the object side surface of the fifth lens is a convex surface; a sixth lens; a seventh lens; wherein the central thickness CT1 of the first lens on the optical axis and the air interval T67 of the sixth lens and the seventh lens on the optical axis meet the condition that CT1/T67 is less than 1.0; the distance T1 from the variable diaphragm of the maximum entrance pupil of the optical imaging lens to the image side surface of the first lens on the optical axis and the aperture value FNO1 corresponding to the maximum entrance pupil of the optical imaging lens meet the following condition of 0.5<T1/FNO1<1.0. A problem that in the prior art, an optical imaging lens is poor in imaging quality is solved.

The invention discloses a GH4169 high-temperature alloy capable of determining the component coordinated change relation on the basis of a cluster type method and a preparation method. According to the method, GH4169 high-temperature alloying elements are divided into Ni-like elements which enter a cluster type and contain Ni, Fe, Co and Cu, Cr-like elements which contain Cr, Mo, Mn and Si, Nb-like elements which contain Nb, Al and Ti, and trace elements which do not enter the cluster type and contain C, P, S, B, Mg and Ca; the coordinated change relation of all the elements is that Ni+1.02Fe+Co+Cu is larger than or equal to 68.93 and smaller than or equal to 72.68, Cr+0.64Mo+Mn+1.67Si is larger than or equal to 19.84 and smaller than or equal to 22.78, and Nb+3.22Al+1.85Ti is larger than or equal to 8.67 and smaller than or equal to 9.81. The coordinated change relation of the new components is simple and effective, the component standardization mode of the high-temperature alloy is thoroughly reformed, and the development of the high-temperature alloy is promoted.