60results about How to "Reliable manufacturing process" patented technology

The invention relates to an electro-optic compound cable for towing, which is an electro-optic compound cable capable of retracting and releasing repeatedly in special occasions, and used for transmitting optical signals and electrical signals. The cable core is formed by twisting high temperature silver-plated leads and optical fiber, and is protected by spiral metal hose at outside, and polyurethane material is extruded outside the steel tube. The cable is composed of a plurality of silver-plated leads, tight tube optical fiber, polyester belting, a spiral stainless steel hose, an aramid fiber twisted layer and a polyurethane jacket; the tight tube optical fiber and the silver-plated leads are twisted into the cable core in an S twisting form, the cable core is wrapped and fixed by the polyester belting, the spiral stainless steel hose is arranged outside the polyester belting, the aramid fiber twisted layer is arranged outside the spiral stainless steel hose, and the polyurethane jacket is extruded outside the aramid fiber twisted layer.

The invention relates to a double-layer titanium aluminum / aluminum silicon composite material as well as a preparation method and application thereof, and belongs to the technical field of preparation of electronic packaging materials. The titanium aluminum / aluminum silicon composite material comprises a titanium aluminum alloy layer, an aluminum silicon alloy layer and a transition layer positioned between the titanium aluminum alloy layer and the aluminum silicon alloy layer. The preparation method comprises the following steps: sintering aluminum powder and titanium powder under high temperature and high pressure to form a titanium aluminum alloy substrate, and then sintering premixed aluminum powder and silicon powder with the sintered and molded titanium aluminum substrate for the second time in a mold under a lower temperature and higher pressure, so as to obtain a titanium aluminum / aluminum silicon electronic packaging material blank with double-layer composite structure; and then annealing by vacuum diffusion, so as to obtain the titanium aluminum / aluminum silicon composite material. The preparation method has the advantages of short process, easiness in control over process parameters and the like; each performance of the prepared titanium aluminum / aluminum silicon composite material is excellent, especially the interface bonding property is attractive, so the material can be used as an electronic packaging material.

The invention discloses a manufacturing process of large 14Cr17Ni2 stainless steel forgings. The process comprises steps as follows: (1) optimization of chemical components: N elements with the content wt being 0.055%-0.065% are added, the content wt of Ti elements are controlled to be smaller than or equal to 0.010%; (2) forging: the large 14Cr17Ni2 stainless steel forgings are forged and heated at 1,100-1,180 DEG C, and the finish forging temperature is controlled to be larger than or equal to 950 DEG C; (3) thermal treatment: the large forgings are subjected to annealing, quenching and tempering, wherein annealing comprises steps as follows: after forging ends, the forgings are subjected to thermal insulation in a waiting furnace; a gate is closed, the furnace is cooled, and thermal insulation is performed; the temperature is increased to 690 DEG C plus or minus 10 DEG C for thermal insulation; the forgings are cooled and discharged from the furnace, and annealing is completed; quenching and tempering comprises steps as follows: the forgings are heated to 1,020 DEG C plus or minus 10 DEG C for thermal insulation, oil cooling is performed after the forgings are discharged from the furnace, and tempering is performed; the forgings are heated to 600 DEG C plus or minus 10 DEG C for thermal insulation and immediately subjected to oil cooling after being discharged out of the furnace. With the adoption of the manufacturing process, the problem that cracks are easily caused during forging of the large 14Cr17Ni2 forgings can be solved, mechanical properties of the large forgings are remarkably improved, and the use requirements of internal components of nuclear power reactors are completely met.

The invention discloses protic ionic liquid used for dissolving cellulose. The components of the protic ionic liquid are shown in a formula of HB+A-, wherein B is sulfur-containing organic or inorganic compound, and A is 98 mass percent concentrated sulfuric acid. The preparation method comprises the following steps of: slowly dripping sulfuric acid into a sulfur-containing compound, and stirring to obtain the protic ionic liquid. The system is used for cellulose dissolution and regeneration and has high capacity of dissolving the cellulose, and after the system is fully stirred at room temperature, the cellulose dissolubility is 10 to 30 percent. The dissolved cellulose is subjected to a wet spinning technology, ethanol is used as setting liquid, drawing molding is carried out, and a solvent is recovered. The cellulose is directly dissolved in the prepared protic ionic liquid, and the cellulose dissolubility is obviously improved. Flows such as alkalization and sulfonation in the production process are simplified, and the problem of environmental pollution due to fiber processing is solved; moreover, the fiber production cost can be reduced and the quality stability of the fiber is improved.

The invention discloses an incineration boiler for high-concentration salty organic waste liquid. The environment-friendly and energy-saving requirements for harmlessness, reduction and resourcezation of high-concentration salty organic waste liquid are met through high-temperature incineration and waste heat recovery. The incineration boiler structurally and mainly comprises auxiliary combustors, waste liquid spray guns, a thermal insulation hearth combustion chamber, a steering chamber, a radiation cooling chamber, a radiation water-cooling pipe panel, convection current evaporation pipe panels, a steam pocket, a high-temperature economizer, a low-temperature economizer, an ash falling bucket, a flue connection expansion joint and a furnace wall. The thermal insulation hearth combustion chamber is formed by a hearth wall-covering film type water-cooling wall in a defined manner, salty waste liquid is combusted, and recycling is conducted in a salt dissolving tank. High-temperature smoke generated in combustion sequentially enters the thermal insulation combustion steering chamber, a quenching chamber, the multiple stages of convection current evaporation cooling chambers and the economizers to be subjected to heat energy recovery. The incineration boiler has the beneficial effects of being simple in manufacturing process, convenient to maintain, safe and stable in running, and suitable for being used and popularized in high-concentration salty organic waste liquid processing in the industries of chemical engineering, oil refining, papermaking and the like.

An epitaxial structure using vertical cavity surface to emit semiconductor laser diode consists of GaAs substrate, grown single- layer GaAs transition layer, grown multilayer external N type of Bragg reflection layer and internal N type of Bragg reflection layer, grown multilayer quantum well structure, grown single-layer internal P type of Bragg reflection layer, grown multilayer P type of oxidation layer, grown multilayer internal P type of reflection layer and external P type of Bragg reflection layer, grown single- layer high doped P type of current expansion layer and ground single-layer super high doped P type of surface covering layer.

The invention discloses a contactless voltage stabilizer main circuit with high voltage stabilization precision. The contactless voltage stabilizer main circuit comprises a compensation transformer, an autotransformer and a reversing circuit. The two lead-out terminals and the n taps of the autotransformer are connected in parallel to be connected with a parallel wire through first contactor switches. Second contactor switches are arranged between every two adjacent connection points on the parallel wire. Both ends of the parallel wire are connected to the primary winding of the compensation transformer through the reversing circuit. The contactless voltage stabilizer main circuit has high voltage stabilization precision and a wide voltage stabilization range. The invention also discloses a contactless voltage stabilizer, which comprises a contactless voltage stabilizer main circuit, an output sampling circuit, a comparator and a control circuit, wherein the output sampling circuit acquires the voltage at the output end of a circuit to be subjected to voltage stabilization; the comparator is connected to the output sampling circuit; the control circuit is connected to the comparator, the reversing circuit, the first contactor switches and the second contactor switches. The contactless voltage stabilizer achieves high precision and voltage stabilization in a wide range.

The invention discloses a roll bending forming method for straight edges of a to-be-welded pipe. The roll bending forming method comprises three steps of preforming, roll bending and reshaping; preforming is completed by a leading-in mould; roll bending is completed by a roll bending mould; reshaping is completed by a leading-out mould; and the leading-in mould, the roll bending mould and the leading-out mould are installed on the same equipment through a mould frame, and are driven by a motor, and thereby, integrated roll bending forming of the straight edges of the to-be-welded pipe is realized. The roll bending forming method is high in forming precision and high in consistency and stability and increases production efficiency.

The invention relates to a water sports boat and a manufacturing method thereof. Firstly, an upper template and a lower template of a shell are made through compression moulding forming, wherein the upper template and the lower template are made of ABS materials; then, glass fiber cloth fully covers the surface of an EPS foam structure, glue is evenly paved on the surface of the glass fiber cloth, the EPS foam structure is put into a cavity of the lower template, and then the upper template covers the lower template; finally, vacuumizing and counter pressure sealing processing are conducted; and air in the joints between the EPS foam structure and the upper and lower templates is pumped, to form the vacuum, pressure is maintained till solidification, and thus the boat is obtained. According to the water sports boat and the manufacturing method thereof, the boat manufactured through the brand new technology takes the ABS materials as basic raw materials and EPS foam as the filling core, a greater improvement is made on the weight, the technology process is simpler and more reliable, the technical requirements of workers are low, the defective rate is favorably decreased, and the yield is greatly increased.

A composition for removing a photoresist includes a) an amine compound having a cyclic amine and / or a diamine, b) a glycol ether compound, c) a corrosion inhibitor and d) a polar solvent. The composition further includes a stripping promoter. Further disclosed is a method of manufacturing an array substrate using the composition for removing a photoresist.

The invention discloses a manufacturing method of a high-temperature alloy forge piece for a nuclear power steam generator. The manufacturing method comprises the following steps 1, a 800H alloy forgepiece for a nuclear power high-temperature gas cooled reactor steam generator is provided; 2, by weight, the content of O is controlled to be less than or equal to 35 ppm, the content of N is controlled to be less than or equal to 130 ppm and the content of Nb is controlled to be less than or equal to 0.01%; and 3, by weight, the content of an Al element and the content of a Ti element are controlled to be 0.37-0.45% and 0.37-0.45% respectively. The finished forge piece prepared through the method meets the grain size and inclusion detection requirements of the 800H alloy forge piece for thenuclear power high-temperature gas cooled reactor steam generator, and the high-temperature mechanical property meets the standard detection requirements.

The invention relates to a shadow mask and a shadow mask module for organic light emitting diode (OLED) material patterning vapor deposition. The shadow mask includes a ceramic membrane under tensile stress, the ceramic membrane including a central membrane region having a plurality of through holes. The through holes form a hole array, so that the vaporized deposition material can pass through the hole array. A peripheral membrane region surrounds the central membrane region. A multi-layer peripheral support is attached to the rear surface of the peripheral membrane region and has a hollow portion below the central membrane region. The multi-layer peripheral support has a base layer and an intermediate layer under compressive stress over the base layer and attached to the lower surface of the peripheral membrane region. The compressive stress of the intermediate layer is selected to balance the tensile stress of the ceramic membrane such that the ceramic membrane remains in a planar state. A shadow mask module includes a rigid carrier having a plurality of support windows and a plurality of shadow masks attached to the support windows.