34 results about "Ironwork" patented technology

The invention discloses an instrument for measuring the thickness of nonferrous magnetic materials and the thickness of a coating layer on the surface of ironworks, which comprises a probe, a measuring circuit and a reference iron plate, wherein, the probe is a strain transducer that is arranged on a base made of the nonferrous magnetic materials, a magnet is arranged on the strain transducer, the reference iron plate is arranged under feet of the base and used for pressing a measured substance between an iron plate and a bottom foot surface of the base during measurement, and the strain transducer is electrically connected with the measuring circuit. The thickness of the substance affects the attraction force between the magnet and the reference iron plate, and the thickness of the substance can be reflected through the strain transducer and the measuring circuit. The measuring instrument can be further used for measuring the thickness of the coating layer on the surface of the ironworks. As the clamping foot contact measurement such as with a caliber rule is not needed, the measuring instrument can be placed at any position, is not limited by substance area and shape, and can consequently realize the measurement of wall thickness of substances with large area and complex shapes.

The invention belongs to the technical field of metal surface treatment, and particularly relates to ironwork electronickelling rust-proof liquid. The ironwork electronickelling rust-proof liquid is composed of water, strong acid, boric acid and citrate, wherein the strong acid, the boric acid and the citrate are dissolved into water; according to the ironwork electronickelling rust-proof liquid,all ingredients which are wide in raw material source and low in cost are mixed according to a certain proportion, the ironwork nickel layer yellowing phenomenon can be quickly solved, a matrix and aplating layer are not corroded, use at the room temperature can be achieved, power consumption is reduced, and the electroplating cost is reduced; and in addition, the ironwork electronickelling rust-proof liquid can be used for plugging places existing surface seepage repairing, rusting again after rust on the surface layer of a plating piece is prevented, the using reliability of a gold platingpart is improved, and the service life of the gold plating part is prolonged.

The invention relates to a clamping anchor for fastening ironwork to a hollow profile of a window or door, whereby the clamping anchor essentially consists of an L-shaped body with a first leg and a second leg, whereby the first leg is short in proportion to the second leg, the second leg of which is provided with an internal thread for securing the clamping anchor via a screw, which internal threads extends lengthways of the second leg, whereby the first leg is provided with a clamping surface for an internal wall surface of the profile, characterized in that at the free end of the second leg, a supporting surface is provided for the ironwork, whereby the clamping surface and the supporting surface are located at both sides of the thread of the second leg, whereby a stable balance of forces is created on the clamping anchor when tightening the screw. The invention also relates to a method for fastening ironwork to a hollow profile of a window or door by means of said clamping anchor.

The invention discloses a method for extracting zinc oxide from iron-smelting blast furnace fly ash. Compared with the commonly used rotary furnace process at present, the method has the following advantages that 1, the used fly ash index is wide: the iron content required by the fly ash used by the rotary furnace process is below 20% and the zinc content is above 20%, and iron content required by the fly ash used by the method is not limited and the zinc content is above 6%; 2, fuel addition is not required: 0.45 ton of anthracite or 0.35 ton of coke powder is required to be added in each ton of fly ash in the rotary furnace, and the method does not require fuel addition; 3, the operation cycle is long: the operation cycle of the rotary furnace is 60 days and the operation period of the enclosed furnace in the method is longer than one year; 4, the fireproof material in the furnace is low in cost: the high-temperature wear-resistant fireproof brick used by the rotary furnace costs ** yuan per ton, and the common fireproof brick used in the enclosed furnace costs ** yuan per ton; and 5, the tailing recycle is convenient: the tailings of the rotary furnace process flow out in a liquid state and need to be continuously cooled by water, and contain less iron so that the value in use is low, and the tailings in the method are discharged in a solid state, the tailings with iron content higher than 50% can be directly used in ironworks and the tailings with iron content lower than 50% can be used in cement plants.

The street ironwork according to the invention includes a frame (4), a manhole cover (6), a hinge (10) for pivotably connecting the covering element relative to the frame between a closed position and an open position, the hinge including a frame knuckle (20) and a covering element knuckle (22).The street ironwork includes a locking element (40) attached to the covering element knuckle and suitable for preventing the covering element knuckle from being released from the frame knuckle in at least one of the open positions of the covering element relative to the frame or in the closed position.

The invention discloses a blackening treatment process for the surface of ironwork. The blackening treatment process comprises the following steps that firstly, a nitriding furnace is warmed to 620-650 DEG C; secondly, the surface of the ironwork is cleaned; thirdly, the cleaned ironwork is placed in the nitriding furnace; fourthly, 900 ml of alcoholic solution is dropped in the nitriding furnace; fifthly, constant temperature is kept for 120 min; sixthly, the nitriding furnace stops heating, and natural cooling is carried out; and seventhly, the ironwork is taken out of the nitriding furnace and cooled to normal temperature. The steps of the blackening treatment process are reasonable, strong-acid-free ironwork surface blackening treatment is achieved through the steps, cost is low, and operation safety is high.

The invention relates to a method for arsenic removal and phosphorous removal out of iron-containing materials and belongs to the metallurgy and mining field and the metallurgy field. Particularly, the invention relates to a method for treating iron ore, ferromanganese ore, ferrotitanium ore, ferrochrome ore, manganese ore and other ores, solution, sponge iron, pre-reduction ball and ironwork block. The method comprises the steps of increasing the iron content in the iron-containing materials, removing the unwanted impurities (firstly, arsenic and phosphorus), and separating the valuable impurities (firstly, vanadium) so as to increase the quality. The invention aims to increase the iron content in the products, decrease the arsenic and phosphorus contents to a preset value, decrease the technical period, reduce the dosage of alkali agent and lower the cost.

The invention discloses a method for extracting zinc oxide from iron-smelting blast furnace fly ash. Compared with the commonly used rotary furnace process at present, the method has the following advantages that 1, the used fly ash index is wide: the iron content required by the fly ash used by the rotary furnace process is below 20% and the zinc content is above 20%, and iron content required by the fly ash used by the method is not limited and the zinc content is above 6%; 2, fuel addition is not required: 0.45 ton of anthracite or 0.35 ton of coke powder is required to be added in each ton of fly ash in the rotary furnace, and the method does not require fuel addition; 3, the operation cycle is long: the operation cycle of the rotary furnace is 60 days and the operation period of the enclosed furnace in the method is longer than one year; 4, the fireproof material in the furnace is low in cost: the high-temperature wear-resistant fireproof brick used by the rotary furnace costs ** yuan per ton, and the common fireproof brick used in the enclosed furnace costs ** yuan per ton; and 5, the tailing recycle is convenient: the tailings of the rotary furnace process flow out in a liquid state and need to be continuously cooled by water, and contain less iron so that the value in use is low, and the tailings in the method are discharged in a solid state, the tailings with iron content higher than 50% can be directly used in ironworks and the tailings with iron content lower than 50% can be used in cement plants.

The present fastener (36) for street ironwork includes a fastening or locking element (56). The fastener (36) includes a retaining foot (60) suitable for removably connecting the fastener (36) to a member of the street ironwork, via a receiving cavity (40) made in the member of the street ironwork by element of a shape-matching connection. The invention further relates to the use in attaching jacks to man hole covers.

The present invention relates to a roller skate, and particularly relates to a rocker-type roller skate made of ironwork of metal circular rod material, comprising omni-directional wheels, and further comprising an ironwork frame made of metal circular rod material. One of these omni-directional wheels is mounted on both the front end and the rear end of the frame. The present invention incorporates an ironwork technique into the rocker-type roller skate, enabling the rocker-type roller skate made of ironwork of metal circular rod material to both have very good playability and provide ornamental ironwork rocking members, while increasing the structural strength of the roller skate.

The invention discloses equipment capable of quickly taking out iron products in decoration waste. The equipment comprises a separator, the separator is internally provided with an input cavity, a rotating mechanism can smash the decoration waste into small blocks, so that subsequent treatment is facilitated, a fishing mechanism is arranged on the right side of the rotating mechanism, a long cavity with a leftward opening is formed in the right end wall of the input cavity, a transmission mechanism is arranged on the lower side of the fishing mechanism, the transmission mechanism can fish outthe waste, sinking in water, in the decoration waste and take out the iron products for simple classification, the equipment is easy to operate, after a certain amount of water is added into the equipment, the equipment is started, the decoration waste is put into the equipment, after the decoration waste is smashed, the decoration waste falls into the water, light objects float on the water, theiron products and other heavy objects sink to the water bottom, through the equipment, the light objects floating on the water can be fished out, and the heavy objects can be divided into two kinds, namely non-iron products and the iron products after being conveyed by a conveying belt.

The embodiment of the invention discloses a method for discriminating ancient cast iron and block iron products, which belongs to the technical field of discriminating methods for ancient iron and steel products. The discrimination method includes two parts: metallographic analysis of ancient cast iron and block iron-making products and non-metallic inclusion analysis; wherein: metallographic analysis is aimed at distinguishing the difference in room temperature equilibrium structure of ancient cast iron and block iron-making products, not Metal inclusion analysis is aimed at the quantity, composition, morphology and distribution of non-metallic inclusions in ancient cast iron and block ironworks. The present invention obtains a method for accurately discriminating ancient cast iron and lump iron-making products through synergistic analysis of alloy phase structure and inclusions, which is beneficial to large-scale popularization and application.