18 results about "Spin casting" patented technology

The disclosed subject matter relates compounds of structure (I), and polymers of structure (II) having a polydispersity ranging from 1 to about 1.1, compositions comprising said polymers and a spin casting solvent, the process of forming a pinning layer selectively on metal with said composition and the process of using said pinning layers to affect chemoepitaxy directed self-assembly of an overlying block copolymer, and the subsequent process of pattern transfer of this self-assembled layer into a substrate by etching.

One aspect of this invention is a photoresist composition comprising a thiol derivatives where the thiol moiety is attached to an SP2 carbon which is part of ring which has structures (H1), (H2) (H3), or (H4), and where this thiol additive is present in a range of about 0.5 wt. % to about 3 wt. % of total solids. Another aspect of this invention is to use this photoresist composition on a metal substrate a patterned photoresist which is use as a etch mask in anisotropic wet chemical etching of the metal substate to produce a patterned metallic substrate. Yet Another aspect of this invention is a composition which comprises the above-described thiol derivatives in a spin casting solution and the process of treating a metal substrate which allows overlaid patterned photo resist to be used as an etch mask for wet chemical etching to affect anisotropic etching of the metal substate to also generate patterned metallic substate.

The present invention relates to a composition comprising components a), b) and c). The component a) is a block copolymer or a blend of block copolymers. The component b) is a low Tg additive selected from the group consisting of an oligo random oligo random copolymer b-1), an oligo diblock copolymer b-2), an oligo diblock copolymer b-3) and a mixture of at least two of these. The component c) is a is a spin casting organic solvent. The invention also pertains to the use of said compositions in directed self-assembly. The invention further pertains to the novel oligo diblock copolymer b-2) which is an oligo diblock copolymer of block A-b) and block B-b), wherein block A-b) is a random copolymer of repeat units having structures (III), and (IV and block B-b) is a random copolymer of repeat units having structures (V), and (VI).

The utility model relates to a device for separating metal foreign matters and automatically reflowing fire coal. The device comprises a fire coal conveying device and a fire coal screening device, the fire coal conveying device comprises a rotary throwing type impurity removing machine and a raw coal conveying belt; the fire coal screening device comprises a permanent magnet roller; the rotary throwing type impurity removing machine is provided with a plurality of toothed plates; a coal falling barrel is arranged below the tail part of the raw coal conveying belt; a buffer box is arranged below the rotary throwing type impurity removing machine; an inclined mechanism is arranged at the bottom of the buffer tank; a backflow conveying belt is arranged below the lower end of the buffer tank; the roller of the backflow conveying belt close to one side of the coal falling cylinder is a permanent magnet roller. The utility model has the beneficial effects that through the cooperation of the permanent magnetic roller and the conveyor belt, the efficient separation of metal foreign matters and fire coal is realized, and the traditional manual screening process is optimized; the tilting mechanism ensures stable operation of the equipment; due to the integrated automatic cleaning and backflow mechanism, the working efficiency is improved, and the operation cost of equipment is reduced; the compact integrated design is suitable for upgrading and transformation of an existing coal conveying system.

The invention relates to a transparent lampshade for a lamp, said lampshade having a closed, light-permeable hollow body (1) the wall (2) of which is provided with an indentation (3) protruding into the interior of the hollow body (1), said indentation forming a receiving space accessible from the outside for one or more electrical lighting means (4), wherein this receiving space is covered towards the outside by a cover (5) which is fixed to the hollow body (1) and at the same time serves as an interface for electrically connecting the lighting means (4) and for mechanically fastening the lampshade to the lamp. The aim of the invention is to enable such a lampshade to be produced in a cost-effective and stable manner while having a largely free shape. This aim is achieved, according to the invention, in that the hollow body (1) and the indentation (3) thereof are designed as an integrated cast piece which is made of thermoplastic material and is produced using a rotational casting method.

The invention relates to a recycling method of a titanium back pipe for a rotary casting target material, the rotary casting target material comprises a back pipe and a target material, the back pipe is a carrier of the target material, an etching groove is formed in the position, close to the end, of the target material used after sputtering, and the recycling method comprises the following steps that S1, the back pipe is checked; the method comprises the following steps: aiming at a rotating casting target material used after sputtering, after determining that the depth of an etching groove reaches a back pipe, judging that the target material reaches the highest service life, at the moment, checking the connection mode of the end part of the used back pipe, checking whether the connection mode has a damage sign or not, and checking the condition of the inner wall of the back pipe; and the back pipe is ensured not to be damaged in the use and transportation processes of the sputtering end. According to the recycling method of the titanium back pipe for the rotary casting target material, the rotary casting target material used after sputtering is treated, the mold outer sleeve is installed for casting, the rotary metal target material subjected to secondary casting can be obtained, the machining process is simple, the quality is stable, the treated back pipe can be repeatedly used, and the cost is low. And the technical requirement of repeatedly casting the target material is completely met.

The rotary casting wheel for metal ingots is related to the casting industry, including the continuous casting of metal ingots. The rotary casting wheel consists of several ingot molds mounted around a central axis on a movable chassis. After the molten metal is poured, the molds are cooled by a fan, and then further cooled completely by a water tank after traveling a certain distance. The molds rotate around the central axis and enter the guide rail. Upon reaching the highest point of the guide rail, the ingots are discharged from the molds due to their weight. The empty molds then return via the guide rail to their initial position. The distributor works in such a way that the distributor's molten metal transfer pipes move rotationally inside the empty ingot molds with the help of the mold walls. Depending on the speed of the ingot molds and the amount of molten metal supplied by the distributor, the molds are filled with molten material. The overall movement of the rotary casting wheel is driven by a gearbox and motor, which are installed on the designated gearbox and motor mount. This system rotates the movable chassis counterclockwise around its axis.

A composition comprising components a), b), and c), wherein a) is a block copolymer component or a blend of at least two block copolymers, and b) is at least one low T g A composition comprising an oligomeric polystyrene additive, and c) an organic solvent for organic spin casting. Component b) individually, if there are two or more, has a Tg in the range of approximately 68.0°C to approximately 90.0°C and a M in the range of approximately 2,500 g / mol to approximately 8,000 g / mol. w The composition is selected from the group consisting of a styrene homopolymer produced by radical polymerization, a styrene random copolymer produced by radical polymerization (whose repeating units consist solely of styrene repeating units, and which have at least two types of styrene repeating units), and a mixture of the styrene homopolymer and at least one of the styrene random copolymers. A DSA processing method using this composition is also disclosed.

The utility model belongs to the technical field of electric vehicle parts, and particularly relates to a casting die of an automobile hub spinning casting, which comprises an upper die plate, a lower die plate, a side die plate and a bottom die plate, the side die plate is arranged between the upper die plate and the lower die plate, the bottom die plate is arranged on the lower surface of the lower die plate, the lower surface of the upper die plate is an upper shape die, and the upper surface of the lower die plate is a lower shape die. The inner surface of the side mold plate is a side shape mold, the center of the lower surface of the upper mold plate is provided with a sprue spreader, and the corresponding position of the lower mold plate is provided with a sprue gate; a first water cooling channel is arranged in the side template; an air cooling nozzle is arranged on the upper surface of the bottom template; an air inlet channel is arranged at the bottom of the bottom template; a second water cooling channel is arranged in the upper die plate. Circulating water is injected into the first water cooling channel and the second water cooling channel, the cooling speed of the side mold plate and the upper mold plate is increased, air is blown to the lower mold plate through the air cooling spray head on the bottom mold plate, the cooling speed of the lower mold plate is increased, the overall cooling speed of the mold is increased, the mold is rapidly cooled, rim shrinkage porosity is prevented, and the product percent of pass is increased.

Described is a patterned liquid crystal monolayer structure (100) on a patterned substrate (900), wherein said patterned substrate is comprising surface areas which grafted onto (500) by a liquid crystal compounds (300) as a self-assembled monolayer (SAM) (200) and surface areas which are not grafted onto (400) by this SAM on this patterned substrate. Also described, are compositions of select liquid crystal (200) with different types of polar anchor groups, in an organic spin casting solvent and the method of using this composition to selectively deposit a SAM on a substrate containing both metallic surface areas and non-metallic inorganic silicon compound surface areas on either one of these areas, depending on the nature of a polar anchor group on the liquid crystal compound, and using this selective SAM deposition as a barrier to selectively deposit a metal oxide dielectric by ALD on the area not grafted by a SAM.

The invention relates to a rotary casting forming device for a steel-aluminum composite pipe. The rotary casting forming device comprises a supporting driving mechanism, a steel pipe mounting mechanism and a flow guide mechanism. The supporting driving mechanism comprises a bottom plate and at least two supporting units; the supporting unit comprises a supporting mounting plate and two supporting wheels; at least one supporting wheel is coaxially provided with a rotating motor. The steel pipe mounting mechanism comprises a roller sleeve used for being arranged on a to-be-formed steel pipe in a sleeving mode. The front end face of the foremost roller sleeve and the rear end face of the rearmost roller sleeve are respectively provided with an end cover flange; a sealing ring is further arranged between the end cover flange and the steel pipe to be formed. The roller sleeves are erected on the two supporting wheels of the corresponding supporting units; the flow guide mechanism comprises a flow guide groove; the diversion trench is obliquely arranged with high front and low back; the end cover flange is provided with a center hole; the rear end of the flow guide groove penetrates through a center hole of the end cover flange and extends into the to-be-formed steel pipe. The forming space of the aluminum layer is directly formed through the inner cavity of the steel pipe, and a mold is not independently arranged; the sealing is reliable; and the processing requirements of pipes with different lengths can be met.

The invention relates to a multi-layer rapid solidification rotary casting method for a steel-high-strength aluminum alloy composite pipe, which specifically comprises the following steps: S1, horizontally arranging a steel pipe, and mounting sealing plugs with central sprue gates at the two ends of the steel pipe; s2, inert gas is continuously introduced, the steel pipe is heated to 700 + / -10 DEG C, and heat preservation is conducted; s3, the steel pipe is driven to rotate at the rotating speed of 100 + / -10 rpm; molten aluminum alloy liquid is poured into an inner cavity of the steel pipe at the speed of 0.5-2 kg / s, and inert gas is kept being introduced in the process; s4, heating is stopped, the steel pipe is driven to rotate at the rotating speed of 1000 + / -50 rpm, and in the process, inert gas introduction is maintained till the temperature is reduced to 300 DEG C or below; and the steel-high-strength aluminum alloy composite pipe is obtained. According to the method, interface bonding strengthening and composite layer homogenization of the steel and the aluminum alloy are achieved; the whole method is simple and efficient, and the obtained composite pipe has the characteristics of high strength, high wear resistance and corrosion resistance of outer side steel and high specific strength and light weight of aluminum alloy.

The present invention relates to a composition comprising components a), b) and c). The component a) is a block copolymer or a blend of block copolymers. The component b) is a low Tg additive selected from the group consisting of an oligo random oligo random copolymer b-1), an oligo diblock copolymer b-2), an oligo diblock copolymer b-3) and a mixture of at least two of these. The component c) is a is a spin casting organic solvent. The invention also pertains to the use of said compositions in directed self-assembly. The invention further pertains to the novel oligo diblock copolymer b-2) which is an oligo diblock copolymer of block A-b) and block B-b), whereinblock A-b) is a random copolymer of repeat units having structures (III), and (IV andblock B-b) is a random copolymer of repeat units having structures (V), and (VI).

The invention belongs to the technical field of rotary casting forming, and discloses a hardware rotary casting forming technological parameter optimization method and system.The real-time solidification state of molten metal in a mold is deduced by obtaining multi-source real-time data and conducting mode analysis, and technological parameters are dynamically adjusted according to the deviation between the real-time solidification state and the preset state; the solidification state of molten metal in the mold can be sensed in real time, and the limitation that the internal state is difficult to directly monitor is overcome; process parameters can be dynamically adjusted according to the solidification state sensed in real time, and the problem that an existing method lacks the dynamic adjustment capability is solved; and therefore, the internal process deviation occurring in the production process can be corrected, and the stability of the casting quality and the production efficiency are improved.

The disclosed subject matter relates to a block polymer comprising structure (1): (A)-(C)-(B), wherein (A) is a first polymer block segment comprising a block segment selected from structure (1a), structure (1b), and a mixture of structures (1a) an (1b), (C) is a spacer moiety comprising structure (1c); and wherein B) is a second polymer block segment comprising repeat units derived from either an alkyl 2-methylenealkanoate, a lactone; a cyclic carbonate, an oxirane, or an oxetane. The disclose matter also pertains to a composition of said block polymer in a spin casting solvent and using this solution in a process of directed self-assembly.

Systems and methods for enhancing the stability and efficiency of perovskite materials, and devices incorporating such perovskite materials. A method of making a perovskite layer includes mixing a perovskite solution with a silica shell precursor solution to produce a perovskite-silica precursor solution, and spin casting or drop casting the perovskite-silica precursor solution on a substrate to form a perovskite material or material layer, wherein the perovskite material or material layer includes a plurality of groups of one or more perovskite grains, each of said plurality of groups wrapped in a silica shell. The silica shell precursor solution may have a chemical structure of Rn—Si—(OR)4-n, where “R” is an alkyl, aryl, or organofunctional group, and “OR” is a methoxy, ethoxy, or acetoxy group.

To provide a centrifugal casting system for manufacturing a refrigeration-compressor bearing allowed to prevent a casting from lowering in quality, by preventing the phenomenon that a melt is cooled into solidification by external air in a process of transferring the melt ladle accommodating the melt to a melt injection port of a casting mold and injecting it.SOLUTION: A centrifugal casting system may include a casting mold formed with a melt injection port through which melt is to be injected, a mold driving unit that rotates the casting mold, and a melt feed unit including a melt ladle that is for reserving a melt to be injected into the casting mold and provided at one-side upper end with a melt discharge port through which the melt is to be discharged, a ladle cover that opens / closes an upper face of the melt ladle, an auxiliary cover that is movably provided at one side of the ladle cover and opens the melt discharge port when the melt ladle is inclined toward one side to discharge the melt through the melt discharge port and a ladle transfer unit that is for transferring the melt ladle.SELECTED DRAWING: Figure 1