138results about How to "Reduce cleanup workload" patented technology

The invention discloses a method for producing a voltage-bearing aluminum alloy tank body of an ultra-high voltage switch by a V-process, comprising the following steps: model making, thin film heating, thin film shaping (film absorbing), coating spraying, sandbox placing, ram-jolting by adding sand , back film covering, film loosening, core setting, box folding, pouring, removing box and shaking out. After the process is improved, an intermediate frequency furnace is utilized to melt and a crucible heat preserving furnace is utilized to modify and refine. When melting in the intermediate frequency furnace, microelements such as tombarthite and the like are replenished and a new non-stirring melting and refining technology is adopted so as to reduce oxide inclusion content in alloy liquid. Modification and refining treatment in the crucible heat preserving furnace ensures high purity degree and high component precision of aluminum liquid, and using pure aluminum alloy liquid can increase the ratio of acquiring qualified pressure-proof tank body foundry products.

The invention discloses a water-based non-graphite type lubricant, which is characterized by comprising the following ingredients in percentage by weight: 26%-35% of inorganic substance with layered lattice structures, 10%-15% of high-temperature-resistant lubricant, 12%-24% of suspending agent, 30%-47% of high-temperature adhesive and 1%-3% of adjuvant. The water-based non-graphite type lubricant is an environment-friendly lubricant for hot die forging, can replace a graphite type lubricant, and is especially suitable for the hot die forging of metal, in particular, for the hot die forging of large-sized aluminum pieces. The invention further discloses a preparation method of the water-based non-graphite type lubricant. The preparation method has the advantages of simple preparation process and excellent film-forming performance.

The invention discloses a sand-line iron mould casting process for grey cast iron flywheel housings of diesel engines. In the invention, upper and lower sand-line iron mould processes are used, so that produced grey cast iron flywheel housing blanks have favorable geometric size precision which can be up to CT8 grade, favorable surface roughness which can be up to 12.5 microns and favorable mechanical properties, the blank processing has small allowance which can be controlled in 3mm, small flashing distortion which can be controlled in 0.5mm and small cleaning workload, so that the labor environment is improved, the environmental protection is improved, the yield is high and can be up to 95%, and the national policies of energy conservation, environmental protection and sustainable development are met.

The invention provides a water-based self-drying/quick-drying sand type casting coating and a preparation method thereof, wherein the water-based self-drying/quick-drying sand type casting coating is high in drying speed, little in pollution/pollution-free, safe to use, low in manufacture cost and high in sintering and stripping rate. The preparation method takes natural fireproof materials which are not calcined or electrically molten, such as zircon powder, chromite powder or zirconic composite silicate mineral powder, as basic materials, adopts a normal-temperature cured-type modified macromoleclar polymer as a main normal-temperature self-drying/low-temperature quick-drying binder, takes a quick-drying type silicate binder as a main high-temperature binder, adopts an efficient composite suspension dispersant high in fire-resistant degree and low in hot shrinkage rate and is added with proper amounts of efficient water reducing agents and defoaming agents to prepare a steel-iron casting water-based self-drying/quick-drying coating which is high in content of solid (nonvolatile matter) and low in permeability. The water-based self-drying/quick-drying sand type casting coating is excellent in thixotropy, brushing property and quick-drying function, thereby achieving the aim of saving energy, improving the environment and improving the quality of castings. The water-based self-drying/quick-drying sand type casting coating is applicable to the field of casting coatings.

The invention discloses a quickly dried alcohol based spraying casting coating and a spraying method thereof. The quickly dried alcohol based spraying casting coating comprises the following components in parts by weight: 60-65 parts of fire resistant powder material, 3-4 parts of suspension agent, 15-20 parts of low boiling point solvent, 15-20 parts of medium boiling point solvent, 1-2 parts of bonding agent and 1 part of assistant. The quickly dried alcohol based spraying casting coating can fully meet the spraying usage requirement; according to different castings, different fire resistant materials are used so as to meet the production requirements of different castings.

The invention discloses a dual-compound wear-resisting hammer comprising a hammer handle and a hammer body; the hammer body is formed by compound casting of two kinds of metal liquids, and the hammer body is in casting connection with the solid hammer handle to form the hammer. The manufacturing method includes the following steps: step 1, manufacturing and casting a sand mold according to a structure of the hammer; step 2, processing the hammer handle with a low-alloy steel blank material, and preburying one end of the hammer handle into the casted sand mold of the hammer; step 3, selecting high-chromium cast iron and carbon steel, and carrying out quantitative pouring in sequence; and step 4, carrying out heat treatment. The dual-compound wear-resisting hammer not only can improve wear resistance of the hammer but also allows the hammer body and the hammer handle to be combined closely and not generate cracks, casting defects are overcome, the product yield is improved, the cleaning workload is reduced, and the quality and the service life of the hammer are improved substantially.

The present invention relates to light environment friendly ceramic pumice and its manufacture and usage. The ceramic pumice is used widely in fading, fluffing, softening, ageing and other processing of clothing, fabric, cloth, etc. The ceramic pumice of the present invention contains no harmful matter, and results in simplified fabric cleaning post-treatment and no environmental pollution. Treating fabric with the ceramic pumice makes fabric soft, good look, personalized, permeable and comfortable.

The invention relates to an overlap welding method using an ultrathin aluminum-steel compound transition joint. The method comprises the steps of: pre-welding treatment; and a method of welding aluminum first and then welding steel during welding. The patent provides the welding method of welding aluminum first and then welding steel. As the heat conductivity coefficient of aluminum is about 3 times that of iron. Heat dissipation of an aluminum-steel interface is facilitated if aluminum is welded first, and the peak temperature of the aluminum-steel interface in the welding process is reduced, so that continuous welding is guaranteed, and meanwhile, the aluminum-steel interface of the ultrathin aluminum-steel compound transition joint is not peeled off.

The invention discloses a method for casting a piston ring by use of an iron type sand coating cylinder, which comprises the following steps of mould manufacturing, moulding, core settling, box closing, pouring, box opening, casting cleaning and machining, wherein the moulding is iron type sand coating moulding; the thickness of the sand coating layer of the iron type sand coating is 6-8mm; the poured molten iron comprises 3.6-3.9% of C, 1.9-2.2% of Si, 0.4-0.6% of Mn, less than 0.05% of P and less than 0.05% of S; the pouring temperature is 1,380-1,400 DEG C; the pouring time is 23-28 seconds; and a riser is not required for pouring. By adopting the method disclosed by the invention, the produced piston ring meets the performance requirements and has the advantages of high dimensional accuracy of the casting, small working allowance, high yield of the casting, high production efficiency and the like.

The invention belongs to the technical field of medical apparatuses, and in particular relates to a tablet grinder for clinical medicine. The tablet grinder for clinical medicine comprises a shell, agrinding module, a blowing module and a roll-compacting module, wherein a feed inlet is formed in one side of the top of the shell, and a discharge port is formed in the bottom of the shell; the grinding module is arranged in the shell and comprises a first roll shaft, a second roll shaft, an elastic abrasive belt, an elliptical wheel, a control motor and a stepping motor, and the grinding moduleis used for grinding tablets; the blowing module is fixedly mounted on the inner wall of the shell on one side of the grinding module for blowing medicinal powder adhered to the grinding module; and the roll-compacting module is mounted in the grinding module for being matched with the grinding module to grind the tablets. As the roll-compacting module is mounted in the grinding module for being matched with the grinding module to grind the tablets, the medicinal powder adhered to the grinding module is blown by arranging the blowing module. An air flow is generated by means of relative movement, so that on the one hand, residues of the medicinal powder are avoided, and on the other hand, the medicinal powder is guided and conveyed, and therefore, the tablet grinding efficiency is improved.

The invention discloses a recycling process and a system for wooden activated carbon industrial wastewater. The method comprises the following steps of: uniformly mixing activated carbon rinsing wastewater, industrial wastewater in an activated carbon workshop and washing water of a scrubber tower and adding lime to neutralize; then, sequentially precipitating, pressure-filtering and precipitating neutralized wastewater and sending the wastewater to a production workshop for water consuming facilities to use; or sequentially precipitating, pressure-filtering, precipitating bio-chemically aerating and precipitating the wastewater and sending the wastewater to the production workshop for water consuming facilities to use or discharge outside so as to recycle the industrial wastewater or reach the standard to discharge the industrial wastewater. Filter mud after pressure filter can be additionally used as fertilizers or building materials and the like, so that product is conveniently arranged, the production cost is lowered and the economic benefit of enterprises is improved. As the wastewater after pressure filter is substantially free from sediments, the phenomenon that sediments in the settling pond is avoided, so that the sedimentation efficiency is improved, the sediment cleaning workload is greatly reduced, and technical reference for expanding the capacity of enterprises can be provided.

The invention discloses an interception storage adjustment system for intensively transferring initial rainwater by a sewage interception pipe. The interception storage adjustment system is arranged on multiple different confluence pipes and comprises an interception well arranged on each confluence pipe; the interception well is provided with a sewage interception pipe extending into a sewage plant, a water outlet communicated with a river channel, and a water inlet communicated with the confluence pipe; the storage adjusting system further comprises a storage adjustment pipe, an initial rainwater interception pipe and a filter layer arranged in the interception well; the filter layer is arranged between the water inlet and the water outlet so as to form a water inlet region adjacent to one side of the water inlet and a water outlet region close to one side of the water outlet in the interception well; one end of the initial rainwater interception pipe is communicated to the water outlet region; and the other end of the initial rainwater interception pipe is communicated into the storage adjustment pipe. According to the interception storage adjustment system, the interception effect is greatly improved, the intercepting dry weather flow is led into the sewage treatment plant, the rainwater is led into the storage adjustment pipe, the pollution of the river channel is reduced and the municipal drainage and storage adjustment capability is enhanced at the same time.

The invention relates to a sand mould casting technology using filter screens instead of washburn cores. The sand mould casting technology comprises the following steps: manufacturing an upper sand mould and a lower sand mould of a hammer pattern, and reserving an inner gate position; arranging a filter screen between a riser and the hammer pattern and integrating the filter screen and the hammer pattern; arranging a filter screen at a position close to a pouring cup on a sprue; brushing coating on the upper sand mould and the lower sand mould until sand is not exposed; clamping the upper sand mould and the lower sand mould, arranging clips or fully pressing weights, and blocking a parting surface by using a fire-proof mud strip; and adding a pouring system, smelting pouring liquid, and then pouring. By the sand mould casting technology using the filter screens instead of washburn cores, the riser can be removed easily, sometimes, the riser can drop naturally after a box is opened, so that the labor intensity is reduced, the production efficiency is improved, the riser is broken along the filter screens, misrun is avoided, and reject rate is reduced; and by the filter screen placed at a sprue gate, steel slag can be stopped from entering a casting mould cavity, molten steel is purified, and metallurgical quality is improved, so that the performance of castings is improved.

The invention discloses a sediment filter box. The sediment filter box is provided with a box body, a box cover, a water inlet and a drain port, wherein the box is internally provided with a plurality of partition plates, the plurality of partition plates can divide the inner space of the box body into a plurality of sedimentation tanks, and waste water successively flows through the all sedimentation tanks. The waste water is subsided when flowing through the plurality of sedimentation tanks, the heights of the partition plates gradually increase, and gypsum, the density of which is higher than that of water, is easy to subside, so that gypsum in the waste water passing through the final sedimentation tank is almost completely filtered; a floating ball assembly and an overflow hole can guarantee that the sediment filter box is free of an unexpected water leakage phenomenon; first and second filter screen bags are convenient to be rapidly assembled and disassembled, and thus the cleaning workload of users can be greatly lightened; and the bottom of the box body is provided with roller wheels, and thus the sediment filter box is convenient to move.

The invention discloses a precipitation and filtration tank, which comprises a tank body, a tank cover, a water inlet and a drainage port; a plurality of partition plates are arranged in the tank body; the plurality of partition plates partition the internal space into a plurality of precipitation tanks; waste water sequentially flows through the precipitation tanks; the waste water is precipitated in the plurality of precipitation tanks, the partition plates are gradually heightened, and the density of gypsum is higher than that of water, so the gypsum is easily precipitated; after the wastewater flows through the final precipitation tank, the gypsum in the waste water is nearly totally filtered; a wax baffle plate is arranged in the tank body; the density of wax oil in the waste water is lower than that of the water, and the wax baffle plate can intercept the wax oil floating on the water surface, so that the precipitation and filtration tank not only can precipitate and filter thegypsum mud, but also can filter the wax oil; the precipitation and filtration tank does not accidently leak water due to the design of a floating ball assembly and an overflow water hole; first and second filtration net slings are conveniently and fast assembled and disassembled, so that the clearing workload of a user is greatly lightened; and rollers are arranged at the bottom of the tank body,so that the precipitation and filtration tank is convenient to move.

The invention discloses a trench integrated mine collecting and mining method of an inclined ore body. A trench construction area is arranged in an empty area formed after mining. Trench constructionof the trench construction area specifically includes the steps that a trench slope used for guiding falling ore to move downward and/or protect the upper disc surface of the ore body is constructed at the corner of the upper disc surface and a bottom plate surface of the trench construction area; a mine collecting channel is reserved in the bottom plate surface when the trench slope is constructed, and the constructed trench slope, the reserved mine collecting channel and the lower disc slope of the ore body form a trench used for gathering the falling ore extracted from the upper portion ofthe trench to the mine collecting channel; the ore body on the upper portion of the trench is extracted and output from the upper portion and/or the side face of the mine collecting channel. The method easily improves the ore recovery rate, ore output efficiency, productivity, recovery safety and comprehensive economic benefits, and is suitable for exploitation of inclined ore bodies with medium stability from thin to medium thick and construction of a trench type mine output bottom structure.