41results about How to "Not easy to manufacture" patented technology

The nonaqueous electrolyte secondary battery of the present invention includes a positive electrode, a negative electrode, and a nonaqueous electrolyte located between the positive electrode and the negative electrode. The positive electrode contains an active material capable of reversibly intercalating and deintercalating lithium, and the negative electrode contains an active material having the same composition as that of the positive electrode. In addition, the non-aqueous electrolyte secondary battery starts to generate voltage after charging. In addition, during reflow mounting, if it is charged after mounting, it will not cause adverse effects on the substrate parts.

The invention discloses a nut fastening assembly for a self-fastening bolt and belongs to the mechanical field. The nut fastening assembly comprises a fastening nut body, a self-fastening bolt and a gasket; the self-fastening bolt comprises a bolt handle and a bolt rod; a spiral curved surface is formed by rotating a connecting line of a point on the central axis of the spiral handle and a point on the outer side surface of the spiral handle in the same height at a constant speed around the central axis and moving along the central axis of the spiral handle at the constant speed, wherein the rotating angle is greater than 360 degrees but less than 540 degrees. The nut fastening assembly disclosed by the invention has the beneficial effects that the rotating angle of the spiral curved surface is set to be greater than 360 degrees, so that the connecting line of the point on the central axis of the spiral handle and the point on the outer side surface of the spiral handle in the same height takes a turn or more so as to form an embedded block on the contact surface of the spiral handle and the gasket to be embedded into the gasket, and therefore, even if part of threads on the bolt are damaged due to vibration, the gasket cannot move relative to the bolt in the axial direction of the bolt on the premise that the gasket is not damaged, thereby playing a true self-fastening role.

[Problem] To provide: a multilayer film for producing a polarizing film, which is not susceptible to breakage during drawing even in cases where a thin PVA film is used therefor, and which is capable of easily producing a polarizing film having excellent polarization performance; and a multilayer film which is not susceptible to breakage during drawing even in cases where a thin PVA film is used therefor, and which is capable of very easily producing a polarizing film or the like having excellent polarization performance. [Solution] A multilayer film for producing a polarizing film, wherein a PVA film and a thermoplastic resin film are adjacent to each other and the bonding strength between these two films is 200 mN / 15 mm or less; and a multilayer film wherein a PVA film and a thermoplastic resin film are adjacent to each other and the bonding strength between these two films is less than 1.5 mN / 15 mm.

A non-aqueous electrolyte secondary cell includes a positive electrode, a negative electrode, and a non-aqueous electrolyte existing between the positive electrode and the negative electrode. The positive electrode contains an active substance capable of occluding and emitting lithium. The negative electrode contains the active substance of the same composition as the active substance of the positive electrode. The non-aqueous electrolyte secondary cell generates voltage when charged. Moreover, upon reflow mounting, charge is performed after mounting, so as to eliminate adverse affect to parts of the substrate.

The invention discloses a bolt and nut fastening assembly, which belongs to the field of machinery and comprises a fastening nut body, a bolt and a washer. The contact surface between the fastening nut body and the washer is a spiral curved surface, and the spiral curved surface is formed by the A line connecting a point on the central axis of the fastening nut body and a point on the outer surface of the fastening nut body at the same height rotates at a constant speed around the central axis of the fastening nut body and moves along the axis of the fastening nut body at a constant speed. into, wherein the rotation angle is greater than 360° and less than 540°. The beneficial effects of the present invention are: the rotation angle of the spiral curved surface is set to be greater than 360°, and the radius is rotated more than one circle, thereby forming an embedded block on the contact surface between the fastening nut body and the washer, which is nested with the washer, so that even Part of the thread on the bolt is damaged due to vibration, and the washer and fastening nut body cannot move relative to each other in the axial direction of the bolt without being damaged, which really plays a role of self-tightening.

The invention discloses a biomass semi-gasification furnace provided with ignition tubes. The biomass semi-gasification furnace comprises an outer furnace body and an inner furnace body. A secondary air channel is formed between the outer furnace body and the inner furnace body. A material adding and combustion opening is formed in the top of the inner furnace body. A gasification chamber is formed in the middle of the inner furnace body, and a ventilation chamber is formed in the lower portion of the inner furnace body. A fire grate is arranged between the gasification chamber and the ventilation chamber. A base is arranged at the bottom of the ventilation chamber. A primary air inlet is formed in the position, close to the bottom, of one side of the ventilation chamber. The ignition tubes are vertically arranged at the positions, above the primary air inlet, of one side of the gasification chamber. The ignition tubes are arranged in a manner that the ignition tubes are in close proximity to the inner wall of the inner furnace body. Secondary air inlets communicating with the secondary air channel are formed below the material adding and combustion opening and above the gasification chamber. Each ignition tube is provided with multiple ignition air inlets from top to bottom. By means of the biomass semi-gasification furnace, ignition can be conducted easily; the gasification effect is good; by means of the design of the double ignition tubes, it is guaranteed that in the gasification combustion and material adding processes, the phenomena of flameout and smoking are not likely to be generated, and high efficiency and cleanliness are achieved; and the biomass semi-gasification furnace is simple in structure, easy to manufacture, convenient to use and maintain, small in weight, attractive in appearance and capable of being carried outdoors conveniently.

The invention relates to a dinotefuran synergistic suspending agent, which is composed of the following components by weight percentage: dinotefuran 20%-50%, retarding solvent 2%-5%, dispersing wetting agent 5%-8%, Thickener 0.1%-1%, preservative 0.1%, antifreeze 3%-5%, defoamer 0.1%, synergist 2%-5%, and the rest is water. The preparation method is to premix and shear dinotefuran, solvent resistance, dispersant wetting agent, thickener, preservative, antifreeze, defoamer, synergist and water, and then carry out secondary sand milling. into products. The dinotefuran synergistic suspending agent of the present invention has low surface tension, strong drug effect, simple preparation process and simple use method, and field tests show that the dinotefuran synergistic suspending agent of the present invention has remarkable insecticidal effect.

The present invention provides a kind of production method, is the production method of the alcohol compound represented by formula (1), and this production method comprises: step (i), prepares the alcohol compound represented by formula (1), aromatic hydrocarbon and A solution of methanol; step (ii), separating crystals of the above-mentioned alcohol compound from the solution above 25°C, and separating and obtaining the precipitated crystals; and step (iii), removing methanol from the above-mentioned crystals above 60°C, the present invention There is also provided a crystal, which is a crystal of an alcohol compound represented by formula (1), and substantially does not have 1153 ± 2 (cm －1 ) peak.

The invention relates to a method for making a non-combustible decorative board. The base material is made of a mixture of pulverized coal slag, quartz powder and lime in a granular state. The quartz powder has obvious guiding properties to the mechanical properties of the product and can improve the nail-holding force of the base material. ;Quartz powder itself is not easy to bond. Lime is an air-hardening inorganic gelling material with calcium oxide as the main component. The addition of lime effectively solves the problem that quartz powder is difficult to bond and form, making the substrate have good plasticity; Coal slag particles have good granularity, and are used as aggregate in the mixture of coal slag, lime and quartz powder to support and solidify the formed substrate; coal slag is formed in the mixture of quartz powder, lime and fiber The three-dimensional space structure is conducive to the flow of phenolic resin, ensuring that the fiber will not be deformed due to the flow pressure generated by the injection of the resin, thus ensuring the uniformity of the voids in the fiber prefabricated substrate.

The invention discloses a driving structure for a forest land excavator. The driving structure is characterized by comprising a chair with a back, a gasoline engine, an excavating part for excavating soil and cutting rhizome and a driving mechanism for driving the excavating part to rotate, wherein the gasoline engine is fixed on the chair with the back, the driving mechanism is arranged between the excavating part and the gasoline engine, the driving mechanism comprises a speed reducer and a flexible shaft, and one end of the flexible shaft is connected to the speed reducer while the other end of the flexible shaft is connected to the gasoline engine. According to the driving structure disclosed by the invention, the speed reducer is connected to the gasoline engine through the flexile shaft; during an operation if the gasoline engine is carried, the gasoline engine can be carried on the back conveniently by virtue of the characteristic that the flexible shaft can be bent and an excavating operation is performed in front, so that an operator is prevented from directly facing tail gas generated by the tail gas, and the health of the operator is protected.

The invention discloses a liquid spraying bottle capable of being filled repeatedly. The liquid spraying bottle comprises a bottle body, a bottle bottom, a spray assembly and a liquid filling device. The bottle body and the bottle bottom are connected or integrally made, and the liquid filling device is arranged on the side of the bottle body and comprises a valve body, a spring, a piston, a first sealing gasket and a second sealing gasket. The valve body is provided with a valve hole, the spring and the piston are sequentially installed in the valve hole, one end of the spring abuts against an inner side wall of the bottle body, the other end of the spring abuts against one end of the piston, the first sealing gasket and the second sealing gasket are installed on an outer side wall of the piston, the second sealing gasket is provided with a liquid flowing hole, the position of an outlet of a liquid filling channel of the piston corresponds to the position of the liquid flowing hole of the second sealing gasket and is communicated with the liquid flowing hole, the valve body is provided with a liquid inflow hole and an air guiding hole, one end of the air guiding hole is communicated with an inner cavity of the bottle body, the second sealing gasket is plugged at the position of the liquid inflow hole of the valve body, and the first sealing gasket is plugged at the position of the air guiding hole of the valve body. The liquid spraying bottle is good in sealing performance and convenient to use and carry.

A connection method for thin-wall stainless steel pipes features that a connecting fitting with metallic screw sleeve is welded to the said pipes and then a pipe joint is used to connect them. An associated pipe joint is also disclosed. Its advantages include flexible connection and disconnection, convenient installation, high reliability and no leakage.

The invention discloses a multi-station full-automatic feeding device. The multi-station full-automatic feeding device comprises a rotating table, a liquid feeder, bin bodies and a smelting furnace. The rotating table is arranged on one side of the smelting furnace. The bin bodies are distributed on the circumferential edge of the rotating table. The liquid feeder is arranged on the rotating table and can scoop up melted liquid in the smelting furnace and pour the melted liquid into the bin bodies. The multi-station full-automatic feeding device is ingenious and reasonable in structural design and high in work efficiency. Feeding can be conducted on multiple bin bodies through one multi-station full-automatic feeding device. The liquid feeder comprises a turning hopper, and therefore the melted liquid can be effectively prevented from splashing outwards, and safety, stability and reliability are high. Meanwhile, a connecting rod type structure is adopted for the liquid feeder, and therefore the advancing speed and running stability are effectively increased, yield can be increased, the machine accuracy can be greatly increased, and the melted liquid is not prone to overflowing. In addition, the multi-station full-automatic feeding device is simple and compact in overall structure, easy to produce and manufacture, rapid and stable in feeding, high in work efficiency and beneficial to wide application and popularization.

A coreless, brushless and toothless big hub motor is composed of a wheel rotor, a coreless stator and a loop controller. As a coreless toothed slot type stator coil replaces a core stator coil, the overall weight is reduced, the efficiency is increased, the structure is simple, and the cost is low. The coreless toothed slot type stator coil has no magnetic field resistance. The motor can slide in an idle state. An electric vehicle without power can be ridden as easily as a bicycle, and has an anti-charging flexible brake function. The toothed slot type stator coil is wound in the same way as the toothed slot type stator coil of the existing big-hub motor, and has the advantages of mature process and easy manufacture. The ratio of effective area of lines of magnetic force cut by 36 single coils is large. There is no core loss, and the line loss is small. The toothed slot type stator coil is formed by winding multiple strands of enameled wires in parallel. The process is simple, flexible, reliable, and high in rate of skeleton space utilization. The loop controller makes effective use of the remaining space inside the wheel rotor, and thus, the overall configuration structure is simplified.

The invention discloses a remote pneumatic delivery oxygenation and feeding machine comprising a supply tank (1), an oxygenation pneumatic feed throwing device (2), a feed delivery pipe (3), and a control box (4). A feed delivery pipe (2) is connected to a feed-receiving output pipe (12) of the supply tank (1). The feed delivery pipe (2) is connected to a feed-receiving output pipe (15) of the supply tank (2). The feed delivery pipe (2) is connected to a feeding mouthpiece (23) of the oxygenation pneumatic feed throwing device (3). A wiring terminal in the control box (4) is connected with a motor of a discharge mechanism (10) of the supply tank (1) and a motor of the oxygenation pneumatic feed throwing device (3). An input end of the control box (4) is connected with a three-phase grid. The above parts integrally form the remote pneumatic delivery oxygenation and feeding machine. With the machine provided by the invention, remote large-area feeding and water oxygenation are realized. The machine is convenient to assembly and to use, and has high automation degree. With the machine, labor is saved, throwing distance is long, scattering area is large, and oxygenation effect is significant. Market demand of the machine is high.