41 results about "Gray iron" patented technology

The invention relates to the technical field of cast aluminum-silicon alloys, in particular to a low-cost ultrahigh-toughness cast aluminum-silicon alloy material and a preparation method thereof. The aluminum-silicon alloy material comprises the following components in percentage by weight: 7.0%-9.0% of silicon, 0.30%-0.50% of magnesium, 1.60%-2.00% of copper, less than or equal to 0.2% of zinc, less than or equal to 0.2% of iron, 0.20%-0.40% of manganese, less than or equal to 0.2% of chromium, 0.05%-0.3% of zirconium, 0.03%-0.2% of titanium, less than or equal to 0.04% of strontium and the balance of aluminum and other impurities. Wherein the total content of other impurities is less than or equal to 0.15%, and the content of a single impurity is less than or equal to 0.05%. The aluminum-silicon alloy material provided by the invention has relatively excellent comprehensive properties such as tensile strength and elongation and relatively low cost, and can replace traditional cast aluminum, deformed aluminum, medium-low grade ductile iron, gray iron, carbon steel, plates and other materials, so that the weight-reducing and light-weight design of parts is realized.

The anti-deformation casting technology comprises the following steps that S1, a mold is pretreated, specifically, a, a thick-wall area and a thin-wall area are recognized according to a casting three-dimensional model, and a high-heat-conduction material insert is embedded into the mold corresponding to the thick-wall area; a low-heat-conduction material insert is embedded into the mold corresponding to the thin-wall area; b, a casting mold is preheated to 180-250 DEG C, and an anti-burnt-on sand coating is evenly sprayed on the inner surface of the mold; s2, low-pressure mold filling pouring is conducted, specifically, molten metal liquid is injected into a mold in a low-pressure mold filling mode; s3, solidification and vibration aging treatment, wherein the thick-wall area of the casting is solidified to 50%-70%; and S4, demolding treatment is conducted, specifically, the casting is demolded, and the casting is transferred into an argon protection heat preservation furnace after demolding. Through the synergistic effect of differential cooling control, stepped pressurization solidification and directional vibration aging, micro plastic deformation can occur in the casting, residual stress is homogenized, the dimensional stability of the gray iron casting is further improved, and deformation of the gray iron casting is reduced.

The invention relates to the technical field of brake disc production, in particular to a high-toughness alloy brake disc and a preparation method thereof. The high-toughness alloy brake disc comprises the following chemical components in percentage by mass: 0.3 to 1.0 percent of niobium; 0.05 to 0.25 percent of antimony; 0.5 to 1.5 percent of molybdenum; 0.5 to 1.5 percent of copper; 0.1 to 0.4 percent of tin; 0.05 to 0.2 percent of titanium; boron: 0.002 to 0.008%; 0.05 to 0.1 percent of lanthanum; 0.03 to 0.08% of neodymium; 0.03 to 0.15% of cerium; and the balance is a gray iron matrix. Through niobium-antimony-molybdenum-boron composite microalloying, triple inoculation and graded annealing processes and in combination with PEO coating and laser microstructure surface treatment, high impact resistance, salt spray corrosion resistance and excellent thermal conductivity in the environment of-40 DEG C to 600 DEG C are achieved.

The invention relates to the technical field of casting mold cooling capacity regulation and control and material-process collaborative optimization, in particular to a V-method precise resin sand mold casting process method suitable for gray iron or ductile iron. The invention relates to a V-method precise resin sand mold casting process suitable for gray iron or ductile iron, which comprises the following steps: firstly, preparing gradient function modified resin sand, mixing spherical reclaimed sand with various materials such as novolac epoxy resin, and carrying out multi-step stirring and surface modification treatment; an intelligent temperature control sand box is prepared, and then the steps of forming negative pressure curing, composite inoculation treatment, vacuum differential pressure pouring, intelligent cooling control and the like are carried out; in the process, special materials and structures such as a core-shell curing agent, a double-layer film and a core-spun yarn are used, and precise process control is achieved. According to the process, through material innovation and process optimization, the sand mold strength and stability are improved, and casting defects are reduced; the casting quality is improved through the precise temperature control and pouring mode, and the mechanical property is enhanced through composite inoculation; the method is environment-friendly and economical, reduces the cost, improves the yield and has a wide application prospect.

The invention provides high-phosphorus wear-resistant gray cast iron and a production method thereof, and belongs to the technical field of high-phosphorus wear-resistant gray cast irons.The production method comprises the following steps that raw materials are inspected; smelting is conducted, specifically, waste steel, gray iron foundry returns, pig iron, a carburant and ferrophosphorus are sequentially put into an electric furnace to be melted; nickel, chromium and copper are sequentially added into the electric furnace, and the molten iron is quenched and tempered, so that the final components of the molten iron meet the requirements; molding: preparing a casting mold; a casting ladle is preheated, meanwhile, an inoculant is placed at the bottom of the casting ladle, then molten iron is poured into the casting ladle, and the inoculant is added along with flow in the process that the casting ladle conducts casting into the mold; box opening: the box is opened after the temperature is reduced, and the formed high-phosphorus wear-resistant gray cast iron is obtained; and performing heat treatment: performing high-temperature annealing on the high-phosphorus wear-resistant gray cast iron, and inspecting the casting to obtain a final finished product. According to the technical scheme, the purpose of improving the abrasion resistance and the mechanical performance of the gray cast iron is achieved.

The utility model discloses a processing mould for gray iron castings, which comprises a bottom plate, a vertical plate is fixedly mounted at the top of the bottom plate, a transverse plate is fixedly mounted at the top of the vertical plate, a screw rod is rotatably mounted between the transverse plate and the bottom plate, a motor is fixedly mounted at the top of the transverse plate, and a screw rod is rotatably mounted at the top of the motor. The output end of the motor penetrates through the transverse plate and is fixedly connected with the top of a lead screw, and the surface of the lead screw is sleeved with a sliding sleeve in a threaded mode. According to the machining mold for the gray iron casting, in the daily use process, an operator starts a motor, the motor runs to enable a lead screw to rotate, at the moment, a sliding sleeve is driven to slide on the surface of the motor, and due to the limiting effect of a round rod and a sliding block, the sliding sleeve can push a carrying plate to slide, so that the carrying plate can slide; and automatic feeding can be achieved through the arranged motor and the arranged template, the labor intensity of operators is reduced, and then the working efficiency of casting machining is improved.

The utility model discloses a gray iron piece vortex machining clamping tool, which comprises a first clamping tool and a second clamping tool, the first clamping tool comprises a first vertical chuck, a first clamping jaw, a first mounting plate and a first backer, and the second clamping tool comprises a second vertical chuck, a second clamping jaw, a second mounting plate and a second backer. A working procedure workpiece is placed on the first backer, the clamping rod is pressed into the clamping groove downwards, the first clamping jaw applies pressure towards the inclined lower portion to the working procedure workpiece to fix the working procedure workpiece, after front face machining of the working procedure workpiece is finished, the working procedure workpiece is transferred and placed on the second backer, the position of the second clamping jaw is adjusted, and the working procedure workpiece is clamped by the second clamping jaw. The overall structure and operation are simple, the tool remodeling cost is low, the remodeling time is short, the machining procedures can be simplified conveniently, the size precision of the procedure workpieces is stable, and the equipment input cost and the labor cost are effectively reduced.

The present invention relates to a method for preparing gray cast iron with high damping and good processing performance for machine tool castings, and belongs to the technical field of gray cast iron. The present invention creatively uses pure nickel, pure titanium, Ca31Si60 silicon-calcium alloy and FeSi90Al1.5 silicon-iron alloy with a certain mass ratio as raw materials, so that they are mixed and smelted in sequence, air-cooled to room temperature, and crushed to prepare a first inoculant, and then the molten iron obtained in the preparation process of the gray cast iron is subjected to an in-package inoculation treatment by the first inoculant, thereby completing the first inoculation of the molten iron, and then a silicon-barium inoculant is used as a second inoculant and 75FeSi is used as a third inoculant, and the two are synergistically compounded to form a composite inoculant, and the composite inoculant is used to perform in-stream inoculation on the molten iron that has completed the first inoculation during pouring, and then a conventional cooling treatment is performed to obtain a gray cast iron that not only has the characteristics of high damping, but also has excellent processing performance.

The invention belongs to the technical field of cast iron plating, and particularly relates to a gray iron ductile iron laser cladding interlayer composite material and a preparation method thereof.The interlayer composite material comprises, by weight, 7-10 parts of alloy powder, 0.5 part of boron nitride, 4-6 parts of ceramic powder, 2 parts of flexibilizer, 0.4 part of yttrium oxide and 0.5-1.5 parts of PMMA. A porous ceramic coating is deposited on a gray iron matrix through a plasma spraying process to buffer thermal tension and prevent the risk of gray iron cracking, and then a laser cladding layer comprising a fusion layer and a barrier layer is plated based on a laser cladding process, so that gray iron and ductile iron are matched in thermal expansion, corrosion and brittle rupture are avoided, and the bonding strength and integrity of the bimetallic plate are guaranteed.

The invention discloses a gray iron casting alloy, a brake drum and a casting method of the gray iron casting alloy, and the gray iron casting alloy comprises the following chemical components in percentage by mass: 3.5%-3.55% of C, 1.8%-2.0% of Si, 0.85%-0.9% of Mn, 0.08%-0.12% of S, less than or equal to 0.12% of P, 0.29%-0.34% of Cr, 0.18%-0.2% of Cu and the balance of Fe and inevitable impurities. Wherein the mass ratio of Mn to S is (7.5-10.6): 1, and the mass ratio of Si to C is (0.51-0.56): 1. The gray iron casting alloy does not contain rare elements, and is low in cost and excellent in thermal fatigue performance, and the brake drum cast by using the alloy is excellent in thermal fatigue performance, long in service life and high in casting process inclusiveness.

The utility model discloses a polishing device for gray iron casting machining, which comprises a box body, a transmission rod is arranged at the bottom end in the box body, transverse gears are arranged on both sides of the transmission rod, a handle is arranged on one side of the transmission rod, baffles are arranged in the box body, clamping blocks are arranged at the bottom ends of the baffles, and the clamping blocks are arranged on the transmission rod. Threaded rods are arranged on the two sides of the baffle in a penetrating mode. According to the polishing device for gray iron casting machining, a transmission rod is driven to rotate by rotating a handle so as to drive a transverse gear to rotate, then a reversing gear is driven to rotate through the transverse gear, then a threaded rod is driven to rotate through the reversing gear, and then a sleeve is driven to move up and down through the threaded rod; according to the polishing device, the sleeve is arranged on the base, so that the sleeve drives the placing plate to move up and down, the distance between the placing plate and the polishing piece can be adjusted according to the requirements of a user, the polishing device can conduct machining according to the polishing requirements of different degrees, and the practicability of the polishing device is improved.

The invention discloses a boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components in percentage by weight: 30-60% of gray iron, 40-60% of scrap steel, 2-4% of carbon, 1-3% of silicon, 0.2-1% of manganese, 0.002-1% of boron and less than or equal to 0.6% of sulfur. And less than or equal to 1.2% of phosphorus. The boron-containing heat-treatment-free lining plate manufactured by the invention is simple in production process, the cost of about ton of the lining plate containing 3% of Cr can be saved by 300-600 yuan, the energy consumption can be greatly saved, the production period is shortened, and the process cost is reduced.

The utility model discloses gray iron casting polishing equipment which comprises an operation table, a cross-shaped sliding table is arranged at the top of the operation table, a placing table is installed at the top of the cross-shaped sliding table, a clamping mechanism is arranged at the top of the placing table, a stand column is arranged at the top of the operation table, a top plate is arranged on one side of the stand column, and the lower portion of the top plate is connected with a polishing machine through a telescopic mechanism. According to the gray iron casting grinding device, gray iron castings of different specifications can be conveniently clamped, fixed and disassembled through the arranged clamping mechanism, the grinding machine can be conveniently driven to move downwards through the arranged telescopic mechanism, grinding operation on the gray iron castings is completed, and the grinding efficiency is improved through the arranged cross-shaped sliding table. According to the gray iron casting grinding device, the position of a clamped and fixed gray iron casting can be conveniently adjusted, then through arrangement, the gray iron casting grinding device can be suitable for clamping and fixing gray iron castings of different shapes, the machining precision of the gray iron casting is guaranteed, meanwhile, the position of the gray iron casting can be conveniently adjusted, and the grinding efficiency is improved.

The invention belongs to the technical field of gray iron guide rail residual stress regulation and control, and relates to a gray iron guide rail residual stress high-energy acoustic beam array regulation and control device and method. The device comprises a plurality of high-energy acoustic beam units, a guide screw, a propelling screw, a flat plate base, a left L-shaped support, a right L-shaped support, an upper supporting plate and a power ultrasonic power supply, each high-energy acoustic beam unit comprises an ultrasonic vibrator, a plugging bolt, a spring and an amplitude-change pole; an ultrasonic vibrator, a plug bolt and a spring on the device form a high-energy acoustic beam unit, and the high-energy acoustic beam unit is tightly pressed and attached to the surface of a residual stress concentration area of the gray iron guide rail through a coupling medium; the high-energy acoustic beam unit generates high-power ultrasonic waves under the driving of a power ultrasonic power supply, the high-power ultrasonic waves are emitted into the guide rail in a contact coupling mode, when the energy of the high-energy acoustic beam is larger than dislocation potential energy in a material, a residual stress field is broken, an internal stress field is redistributed again and reaches new balance, and residual stress is relaxed and released. And the residual stress on the surface and in the guide rail is reduced and homogenized.

The utility model discloses an automobile die based on ductile iron and gray iron composite casting technology, which relates to the technical field of automobile dies and comprises an upper die fixing plate and a lower die fixing plate, an upper die is arranged below the upper die fixing plate, a lower die is arranged on the lower die fixing plate, and a closed forming cavity is formed between the upper die and the lower die when the upper die and the lower die are clamped. A placement groove is formed in the lower mold, guide supporting structures are arranged on the two sides of the lower mold respectively, a positioning key groove is formed in the placement groove, an injection molding channel is formed in the lower mold and communicates with the forming cavity, and a heat conduction groove is formed in the upper mold and communicates with and wraps the upper portion of the forming cavity.

A method of refurbishing a steel-shell brake drum that includes superheating a worn-out brake drum until the worn-out brake drum is glowing hot. The worn-out brake drum includes a steel shell and a worn-out, gray-iron layer bonded to an inside surface of the steel shell. The method further includes centrifugal casting additional molten iron to the gray-iron layer to increase the radial thickness of the gray-iron layer.

The invention relates to a friction brake body (1) for a wheel brake (8) of a motor vehicle, having a base body (5) which is manufactured from grey cast iron. The base body (5) has at least one friction contact surface (2, 3) with a wear protection layer (6, 7), and the wear protection layer (6, 7) has a stainless steel matrix with hard material particles. According to the invention, the wear protection layer (6, 7) has a plurality of agglomerates (13) of hard material particles (12), and the agglomerates (13) are infiltrated by the stainless steel matrix.

The utility model provides a gray iron casting cleaning machine which comprises a box body, a rotating door arranged in the box body, a cleaning mechanism arranged in the box body, and a moving mechanism arranged in the box body. According to the gray iron casting cleaning machine, a double-head motor drives an extension sleeve to be connected with an extension rod to rotate towards one side, so that a transmission piece drives a rotating rod to be connected with a rotating disc to rotate towards one side, and then a vibration block, a vibration hole, a filter box, a reset groove, a reset block and a reset spring are matched, so that the filter box vibrates; the shot materials falling into the filter box are filtered, the filtered shot materials can be discharged through the guide box, large chippings can fall into the filter box to be stored, small chippings can enter the collecting box to be stored, and therefore the shot materials in the chipping box are separately stored, the filter box is prevented from being blocked, and meanwhile the shot materials in the chipping box can be collected. And later unified treatment is also facilitated.

The utility model discloses a waste residue cleaning device based on gray iron casting processing, which comprises a bottom plate, a vertical plate is fixedly mounted at the bottom of the bottom plate, a transverse plate is fixedly mounted at the bottom of the vertical plate, a cleaning motor is fixedly mounted at the top of the transverse plate, and a rotating shaft is rotatably mounted at the top of the cleaning motor. A gear is fixedly mounted at the top of the rotating shaft, the output end of the cleaning motor is fixedly connected with the bottom of the rotating shaft, and a limiting plate is fixedly mounted at the bottom of the bottom plate. According to the waste residue cleaning device based on gray iron casting machining, an operator starts a cleaning motor, operation of the cleaning motor enables a rotating shaft to rotate, then a gear is driven to rotate, at the moment, the gear drives a toothed plate to slide in a limiting plate, and then the toothed plate drives a sliding groove to slide in a vertical rod; and then the connecting rod is driven to slide in the strip-shaped groove, and meanwhile the scraping plate is driven to slide on the top of the bottom plate.

The invention relates to the technical field of gray iron casting polishing, and particularly discloses a positioning and polishing structure for gray iron castings, which comprises a base, blanking parts are fixedly connected to two sides of the base, polishing parts are fixedly connected to the middle parts of the side surfaces of the two blanking parts, and a transmission part is fixedly connected to the inner side of the base; the collecting component is used for collecting chippings generated during grinding, and positioning components are fixedly connected to the two sides of the top of the collecting component; the positioning part comprises a positioning frame, a second driving part is fixedly connected to the side face of the positioning frame, three positioning shafts are evenly arranged on the side, away from the second driving part, of the positioning frame, one ends of the two positioning shafts located on the two sides are slidably connected with the positioning frame, and the end, close to the positioning frame, of the positioning shaft located in the middle is fixedly connected with the output end of the second driving part. The end, away from the positioning frame, of the positioning shaft is fixedly connected with a clamping mechanism. According to the device, gray iron castings of different shapes and sizes can be adaptively adjusted, and the device is high in universality, high in flexibility and high in automation degree.

A method of refurbishing a steel-shell brake drum that includes superheating a worn-out brake drum until the worn-out brake drum is glowing hot. The worn-out brake drum includes a steel shell and a worn-out, gray-iron layer bonded to an inside surface of the steel shell. The method further includes centrifugal casting additional molten iron to the gray-iron layer to increase the radial thickness of the gray-iron layer.

The utility model relates to the technical field of dies, and discloses a die for gray iron castings based on nodular cast iron, which comprises a base, a lower shell is fixedly connected to the upper surface of the base, an inner cavity is fixedly connected to the interior of the lower shell, a water tank is fixedly connected to the upper surface of the lower shell, and sliding chutes are formed in two sides of the lower shell. Through the arrangement of the push plate, when the device is used, after a casting is cooled to a proper temperature, the limiting bolt is rotated reversely, so that the limiting bolt is separated from the surface of the clamping block, then the electric push rod is started, the clamping block is clamped in the clamping block, the clamping block is clamped in the clamping block, the clamping block is clamped in the clamping block, and the clamping block is clamped in the clamping block. When the casting is taken out, the upper shell is opened again, then the two pull rods are pulled at the same time, the pull rods drive the second locking blocks to move out of the interiors of the clamping grooves, at the moment, the second springs push the push plates upwards through the elastic force of the second springs, and therefore the casting is automatically moved out of the interior of the inner cavity, and the taking-out efficiency is improved.

The invention relates to the field of chemical technology, and proposes a sintering machine head dust removal ash sorting process, which comprises the following steps: S1 pulping: weighing the sintering machine head ash according to a proportion by a quantitative feeder, conveying the sintering machine head ash to a humidifying pulping machine, adding a certain amount of clean water for mixing and stirring to form slurry A; S2 precipitation separation: inputting the slurry A into an intermittent leaching tank, stopping when the liquid level of the slurry A reaches four fifths of the intermittent leaching tank, and standing to precipitate; S3 removing alkali metals; S4 replacement: adjusting the pH value of the slurry C to 9-12; adding an environmentally friendly gold extracting agent; immersing zinc wire in the upper clear liquid of the standing slurry C; S5 extracting gold and silver: after the replacement is completed, the replaced zinc wire is put into a medium frequency furnace for smelting to obtain gold ingots and silver ingots; through the above technical scheme, the problems of low recovery rate of iron powder of sintering machine head dust removal ash and easy waste of resources in the prior art are solved.

The invention relates to a brake disc (12) for a motor vehicle, said brake disc comprising a main body (20) made of a gray cast iron alloy and comprising a coating (22), wherein the coating (22) comprises different concentrations of hard materials in different regions.

The application provides a feeding process of a gray iron flywheel structure and belongs to the field of gray iron flywheel casting. The bottom surface of a sprue cup is connected with a vertical sprue, the two ends of the bottom of the vertical sprue are connected with horizontal sprues, a casting is installed on the horizontal sprues, a top cold riser is installed on the top of the casting, an internal cold riser is installed on the inner ring of the casting, and a local drop surface is arranged on the inner ring of the casting. The application solves the problem that the inner ring of the flywheel cannot sequentially solidify and shrinkage remains in the prior art, the top cold riser supplements liquid to the casting, the outer ring of the flywheel is fed, thereby reducing the insufficient casting and shrinkage deformation of the top of the flywheel, the internal cold riser design can specifically feed the inner ring of the flywheel, and the local drop surface enables the inner ring of the flywheel to sequentially solidify when solidifying. Through the above process, the inner ring of the flywheel is sequentially fed and solidified when self-solidifying, internal shrinkage remains are avoided, and it is ensured that the inner ring of the flywheel has no shrinkage remains.

According to the positioning polishing table for the gray iron casting, an internal partition plate is arranged in an external working box body, an auxiliary rotating groove is formed in the top face of the internal partition plate, a detection auxiliary mechanism, a cooling treatment mechanism, a material fixing mechanism and a cleaning mechanism are all arranged in the external working box body, and a first universal driving motor is arranged at the bottom of the internal partition plate; the circular rotating disc is arranged in the auxiliary rotating groove, connecting supporting columns are arranged at the two ends of the top of the circular rotating disc, and a material bearing plate is arranged at the top ends of the two connecting supporting columns. An auxiliary rotating groove is formed in the top face of the inner partition plate, a precise rotating track is provided for the circular rotating disc, it is ensured that the circular rotating disc is kept stable in the rotating process, shaking and deviation are reduced, and therefore the material fixing accuracy and the grinding precision are improved, movement of materials in the rotating process is more stable and controllable, and the grinding efficiency is improved. And high-quality grinding operation can be realized.

The utility model relates to the technical field of hoisting equipment debugging, and discloses a pure iron weight set. The pure iron weight set comprises a weight block set, grooves are formed in the two sides of the weight block set in a hollowed-out mode, lifting lugs are arranged in the grooves, and the weight block set is formed by combining and overlapping two first weight blocks of ton weight, a second weight block of ton weight, a third weight block of ton weight and a fourth weight block of ton weight. The device has the advantages of being small in size, large in weight, small in occupied space, good in structural strength, convenient to stack and combine the weights, capable of matching and selecting various weights and the like, and solves the problems that a cast weight set is poor in quality due to the fact that the cast weight set is made of gray cast iron, and the weight of a crane cannot be combined when the balance weights of the crane are combined. The problems that in the prior art, a counter bore and a boss need to be aligned with counter weights stacked on the counter bore and the boss at the same time, stacking and combination of the counter weights can be completed, complexity is high, and the combination and matching weight of the crane counter weights is single are solved.

This invention relates to the field of lost foam casting technology and provides a method for solving the porosity problem in gray iron casting. A necked ceramic tube is added to the lower end of the sprue, utilizing its "liquid seal-stabilized flow" characteristics to keep the pouring cup continuously filled. When molten iron flows in, the flow velocity at the neck increases, reducing the chance of gas entrapment and maintaining a stable molten iron level in the pouring cup, preventing air from entering the mold cavity. Venting is enhanced by adding a dedicated venting pipe to the bottom of the mold: a foam sprue is connected to the bottom slag discharge channel, covered with a paper ceramic tube, and then a steel pipe is fitted over the paper ceramic tube, with sand tightly packed between the paper ceramic tube and the steel pipe. Isolated bosses are connected to the main mold using foam material, enabling continuous molten iron filling. Through the synergistic effect of these three elements, this invention effectively controls porosity defects in gray cast iron parts, significantly reducing customer complaints and demonstrating significant engineering application value.

The invention consists of a gray cast iron comprising carbon, silicon, vanadium, manganese, nickel, chromium, molybdenum, copper, sulfur, phosphorous, tin and titanium, wherein: the percentage by weight of carbon is from 3.70 to 3.90%; the percentage by weight of silicon is from 1.30 to 2.10%; the percentage by weight of vanadium is from 0.10 to 0.15%; the percentage by weight of manganese is from 0.60 to 0.90%; the percentage by weight of nickel is from 0.05 to 0.50%; the percentage by weight of chromium is from 0.20 to 0.35%; the percentage by weight of molybdenum is no more than 0.10%; the percentage by weight of copper is no more than 0.35%; the percentage by weight of sulfur is less than 0.10%; the percentage by weight of phosphorous is less than 0.10%; the percentage by weight of tin is less than 0.10%; the percentage by weight of titanium is no more than 0.01%; the remainder by weight being iron.

The utility model is applicable to the technical field of gray iron casting processing, and provides a waste residue cleaning device for gray iron casting processing, which comprises a bottom shell, a limiting groove is arranged on the inner wall of the bottom of the bottom shell, and a processing table for processing gray iron castings is fixedly arranged on the top of the bottom shell. Two strip-shaped holes used for discharging waste residues are formed in the machining table. The collecting box is arranged on the limiting groove and is used for collecting waste residues; the baffle is welded to the top of the machining table and used for blocking waste residues; and the two discharging pipes are fixedly installed at the bottom of the machining table, one ends of the two discharging pipes extend into the bottom shell, and the two discharging pipes correspond to the two strip-shaped holes correspondingly. The waste residue cleaning device for gray iron casting machining solves the problems that manual cleaning of waste residues generated in the gray iron casting machining process is time-consuming and labor-consuming, and the cleaned waste residues occupy much space of a collecting container.