CN114231791B - Water flushing tank for large-diameter titanium alloy seamless pipe - Google Patents
Water flushing tank for large-diameter titanium alloy seamless pipe Download PDFInfo
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- CN114231791B CN114231791B CN202111559987.7A CN202111559987A CN114231791B CN 114231791 B CN114231791 B CN 114231791B CN 202111559987 A CN202111559987 A CN 202111559987A CN 114231791 B CN114231791 B CN 114231791B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1218—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by dry processes
- C22B34/1222—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by dry processes using a halogen containing agent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1263—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction
- C22B34/1268—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction using alkali or alkaline-earth metals or amalgams
- C22B34/1272—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction using alkali or alkaline-earth metals or amalgams reduction of titanium halides, e.g. Kroll process
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1295—Refining, melting, remelting, working up of titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
Abstract
The invention discloses a water washing pool for large-caliber titanium alloy seamless pipes, which comprises a vibration source, a lifting table and a water tank, wherein the vibration source is arranged in the water tank, the lifting table is arranged above the vibration source in the water tank, the vibration source comprises an electromagnetic strip and a vibrating piece, a vibration point is arranged at the overlapped part of the electromagnetic strip and the vibrating piece in each vertical direction, the vibration point comprises an electromagnet and a permanent magnet, lifting lugs are arranged at four corners of the lifting table, a lifting cylinder is correspondingly arranged at each of the four corners of the water tank, a clamping point is arranged on the lifting table, the clamping point comprises an integral bottom plate and a single pressing plate, a reinforcing frame is arranged on the outer wall of the water tank, a water inlet pipe and a water outlet pipe are arranged above the side wall of the water tank, the water outlet pipe comprises an overflow pipe and an emptying pipe, support legs are arranged at each of the four corners of the bottom of the water tank, and the water washing pool has the characteristics of excellent washing effect and the like on the whole, has high practicability and popularization significance.
Description
Technical Field
The invention relates to the technical field of pipes, in particular to a water washing tank for a large-diameter titanium alloy seamless pipe.
Background
Titanium is an important structural metal developed in the 50 s of the 20 th century, titanium alloy has the characteristics of low density, high specific strength, good corrosion resistance, low thermal conductivity, no toxicity and magnetism, good weldability, good biocompatibility, strong surface decoration property and the like, is widely applied to the fields of aviation, aerospace, chemical engineering, petroleum, electric power, medical treatment, building, sports goods and the like, and a plurality of countries in the world have recognized the importance of the titanium alloy material, and research and development are carried out on the titanium alloy material in succession, and the titanium alloy material is practically applied.
From the global perspective, the aviation industry plays a decisive role in the development of the titanium market, historically, the large market cycle of the titanium industry is closely related to the cooling and heating of the aviation industry, on the aircraft, the strength, density, heat resistance and other aspects of materials have extremely high requirements, on one hand, the titanium alloy can meet the effects of reducing the structural weight and improving the structural efficiency of the spacecraft, on the other hand, the titanium alloy can meet the requirements of heat resistance and heat strength in parts such as a machine tail, an engine drum barrel and the like, meanwhile, the titanium alloy can also have good compatibility with other composite materials on the spacecraft, galvanic corrosion can be avoided between the titanium alloy and the composite materials, so that the overall structural stability of the spacecraft is improved, and in order to manufacture various titanium alloys with better performance and better phase property to promote the development of the aviation field and other civil fields, countless manufacturers actively focus on the improvement and optimization work of the titanium alloy formula, the comprehensive process performance of the titanium alloy is improved by continuously optimizing the processing technology of the titanium alloy, and the existing titanium alloy metal processing technology has room for improvement in the aspects of control of the forging temperature of a titanium blank, proportion of metal components and the like.
Disclosure of Invention
The invention aims to: provides a large-caliber titanium alloy seamless pipe and a preparation method thereof, which aim to solve the defects.
In order to achieve the above purpose, the invention provides the following technical scheme:
the large-caliber titanium alloy seamless pipe is characterized by comprising a pipe base component, a main component and a trace component, wherein the pipe base component is Ti, and the main component comprises the following components in percentage by mass: al: 4.0% -5.0%; sn: 3.0% -4.0%; zr: 2.5% -3.5%; mo: 0.2% -1.2%; si: 0.2 to 0.5 percent; the micro-ingredients can comprise the following components: fe, Mn, B, Cr.
Preferably, the composition components comprise optional components, and the optional components can comprise the following components in percentage by mass of the total mass of all the composition components: ta: 0.3% -0.5%; nb: 0.3% -0.5%; the substrate components are supplemented according to the balance after the specific mixture ratio of the main components, the trace components and the optional components is confirmed to be completed and added.
Preferably, the minor ingredients are: B. cr and Fe mixture; B. a mixture of Cr and Mn; B. a Cr mixture; B. one of Cr, Fe and Mn mixture.
Preferably, the preparation method of the large-caliber titanium alloy seamless pipe is characterized by comprising the following steps:
ST1, industrial titanium: from mining to ore dressing to enrichment treatment of the ore, the titanium ore is changed into a titanium-rich material step by step, petroleum coke and Cl2 are added into the titanium-rich material to realize chlorination of the titanium-rich material, a magnesium reduction method is adopted to prepare a mixture of Mg and MgCl2 after refining treatment, the Mg content in the mixture can be reduced after magnesium reduction operation is repeated for many times, and the final product titanium sponge is prepared through vacuum distillation;
ST2, electrode pressing and smelting: pressing the obtained titanium sponge to form a compact blocky electrode, and carrying out vacuum consumable melting on the blocky electrode for at least three times by using a VAR method to reduce impurities so as to obtain a purer irregular titanium blank;
ST3, forging: forging the irregular titanium billet obtained after the vacuum consumable melting treatment to change the appearance and improve the technological performance of the irregular titanium billet, and obtaining a titanium bar billet after the forging is finished;
ST4, acid washing: the titanium at high temperature has high affinity with a gas medium, so that a hard alpha layer is formed on the surface of a forged titanium bar blank, the alpha layer can greatly reduce the metal performance and process plasticity of the titanium bar blank, and the quality of a finished product is affected;
ST5, extrusion: the method comprises the following steps of extruding a titanium bar blank to enable the appearance size of the titanium bar blank to be close to the design size of a final finished product and reduce the machining allowance, wherein when the extrusion process is carried out, the extrusion temperature is set to be 870-920 ℃, the extrusion ratio is 10-25, the extrusion speed is 90-120 ms/s, the extrusion lubricant is glass lubricant, and the softening point of the glass lubricant is 670-720 ℃;
ST6, piercing-rolling and straightening: after the extrusion process, all the sizes of the titanium bar blank are close to the sizes of finished products, a final perforation rolling process can be carried out, after the titanium bar blank is subjected to a perforation process, a multi-row rolling mill is used for carrying out twice repeated rolling, and then a straightening machine is used for straightening and finally outputting a preformed product, and then a pre-inspection process is carried out on the preformed product, wherein the pre-inspection process comprises sizing measurement, straightness measurement and surface defect detection, the preformed product which meets the requirements can be sequentially subjected to annealing, acid washing, water washing and oil coating storage processes, the preformed product which is subjected to annealing, acid washing, water washing and oil coating storage processes is changed into a finished product, and the unqualified preformed product is subjected to rolling and straightening steps again until the quality requirements of the pre-inspection are met;
ST7, final inspection: and performing final inspection on the finished product stored after oil coating, wherein the final inspection comprises chemical component inspection, mechanical property inspection, water and air pressure inspection, surface quality inspection and overall dimension inspection.
Preferably, the ST3 forging process comprises four process steps of ingot cogging, preforming, hammer die forging and press die forging in sequence, wherein the ingot cogging temperature is 1100-1150 ℃, the preforming temperature is 970-1020 ℃, the hammer die forging temperature is 920-970 ℃, and the press die forging temperature is 900-950 ℃.
Preferably, the ST4 acid washing process comprises the steps of removing oxide skin by sand blasting, cleaning by an organic solvent, washing in cold water, acid washing, degreasing, wiping, washing in cold water, washing in flowing cold water, spraying and drying in sequence, wherein the degreasing step comprises the steps of cleaning a titanium rod by using industrial ethanol and washing the titanium rod blank again by using a mixed solution of acetone and butanol with a volume ratio of 1:1, and in the wiping step after degreasing, dust-free cloth is used for wiping but not volatile drying.
Preferably, in the final inspection process of ST7, one percent of the total number of finished products in the same batch can be selected, the maximum value of the finished products is not more than ten, and the minimum value of the finished products is not less than two, the selected finished products are cut off from one third and two thirds of the length of the tube body, and then the finished products divided into three sections are subjected to the procedures of chemical component inspection, surface quality inspection and external dimension inspection.
Preferably, wash in the cold water step and wash the step adopt a water washing tank, water washing tank includes vibration source, elevating platform, basin, the vibration source sets up in the basin, the elevating platform sets up the top of the vibration source in the basin, the vibration source includes electromagnetic stripe, trembler, the trembler has a plurality of along horizontal direction parallel arrangement in the basin, the electromagnetic stripe is provided with two relatively, two of relative setting electromagnetic stripe level respectively and transversely put directly over the trembler and directly under, the electromagnetic stripe all is provided with the vibration point with trembler in the ascending crossover point of each vertical side, the vibration point includes electro-magnet and permanent magnet, the permanent magnet sets up on the trembler, just the permanent magnet run through the trembler, each the vibration point all include two electro-magnets, two electro-magnets set up respectively the lower terminal surface of the electromagnetic stripe above the trembler and the electric magnetic stripe of trembler below the electric magnetic stripe On the upper end surface, four corners of the lifting platform are provided with lifting lugs protruding out of the lifting platform body, four corners of the water tank are correspondingly provided with a lifting cylinder at the position where the lifting lugs extend out, a machine base end of the lifting cylinder is hinged on the outer wall of the water tank, a piston end of the lifting cylinder is hinged at the lower end of the lifting lug, when the lifting cylinders arranged at the four corners of the water tank start to work cooperatively, the lifting platform can be controlled to lift from the water tank or fall into the water tank, the lifting platform is provided with clamping points, the titanium bar blank or the preformed product is fixed on the lifting platform through the clamping points, the clamping points comprise an integral bottom plate and a single pressing plate, the integral bottom plate is a long strip-shaped plate body arranged at two ends of the lifting platform in parallel, a plurality of trapezoidal notches are uniformly and correspondingly arranged on the two integral bottom plates in parallel, one pressing plate is arranged above each trapezoidal notch on the integral bottom plate, the single pressing plate is also provided with a trapezoidal notch and is fixed on the integral bottom plate through two screw rods respectively arranged at two sides of the trapezoidal notch, each screw rod comprises a rod end and a nut end, the nut end of each screw rod sequentially penetrates through the integral bottom plate and the single pressing plate and then is screwed with a nut, a spring is sleeved between the rod end of each screw rod and the integral bottom plate, a handle is arranged on the upper end surface of the single pressing plate, a reinforcing frame is arranged on the outer wall of the water tank, a water inlet pipe is arranged above the side wall of the water tank and is communicated with the inside of the water tank, a water outlet pipe is arranged beside the water inlet pipe and comprises an overflow pipe and an emptying pipe, the overflow pipe is communicated to the upper part of the side wall of the water tank and is communicated with the bottom of the water tank, the overflow pipe and the emptying pipe are intersected into a pipeline outside the water tank, and a valve for controlling the opening and closing of the pipeline is arranged on the emptying pipe, and supporting legs are arranged at four corners of the bottom of the water tank.
Preferably, the two oppositely arranged electric magnetic strips form a group, and one or two groups of electric magnetic strips are arranged in the vibration source as required.
Preferably, the stabilizer blade sets up on strengthening frame, strengthening frame opens at the position department of installation stabilizer blade has vertical cavity, the stabilizer blade includes the base and sets up the well core rod in the base top perpendicularly, be equipped with the screw thread on the body of rod of well core rod and the cover has the locking to detain on well core rod, well core rod's upper end sets up in strengthening frame's cavity, locking is detained and is supported on the strengthening frame's outside the cavity support body.
The invention has the beneficial effects that:
according to the water washing tank for the large-caliber titanium alloy seamless pipe, the thermoplasticity and the heat strength of the titanium alloy are effectively improved by proportioning metal components and further optimizing a processing technology, optional components are added in a formula, a supplier can effectively optimize the cost according to the actual use occasion of a required party, the resource investment is saved, the washing tank which is specially designed and is driven by electromagnetism to vibrate the vibrating piece can improve the washing effect and reduce the washing noise when a cold water washing step or a washing step is carried out on a titanium rod blank and a preformed product, the water washing tank has the characteristics of reasonable formula proportion, high efficiency and easiness in implementation of a preparation method, excellent washing effect of the water washing tank and the like on the whole, and has extremely high practicability and popularization significance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1: the preparation method of the invention is a flow chart;
FIG. 2: the structure schematic diagram of the water flushing tank is shown;
FIG. 3: the structure of the clamping point is shown schematically;
FIG. 4: the structure of the vibration source is shown schematically;
FIG. 5: the invention has a structure diagram of a vibration point;
FIG. 6: the invention is a structural schematic diagram of a support leg;
description of reference numerals:
1. a vibration source; 11. an electric magnetic strip; 111. an electromagnet; 12. a vibrating piece; 121. a permanent magnet; 2. a lifting platform; 21. lifting lugs; 221. an integral base plate; 222. a single pressing plate; 223. a handle; 224. a screw rod; 225. a spring; 226. a trapezoidal notch; 3. a water tank; 31. a reinforcing frame; 4. a lifting cylinder; 5. a support leg; 51. a base; 52. a center pole; 53. a locking buckle; 6. a water outlet pipe; 61. an overflow pipe; 62. an emptying pipe; 7. and (4) a water inlet pipe.
Detailed Description
The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1 to 6:
as shown in fig. 1-6, the large-caliber titanium alloy seamless pipe comprises a pipe base component, a main component, an optional component and a trace component, wherein the pipe base component is Ti, and the main component comprises the following components in percentage by mass: al: 4.0% -5.0%; sn: 3.0% -4.0%; zr: 2.5% -3.5%; mo: 0.2% -1.2%; si: 0.2% -0.5%; the optional components can comprise the following components in percentage by mass of the total mass of all the components: ta: 0.3% -0.5%; nb: 0.3 to 0.5 percent; the composition of the micro-ingredients can comprise the following components: fe; mn; b; cr; the base component, the main component and the trace component must be added in the production process, Al is used as an alpha stabilizing element and added into the alloy to effectively improve the heat strength of the alloy, so that the Al is added into most of the alloys which are expected to work in a high-temperature environment and is also used as a main component in the invention, but excessive Al can react with a titanium matrix to generate brittle Ti3The Al phase can greatly influence the performance of the metal, so the addition amount of Al is strictly controlled, the maximum limit cannot exceed 5% in specific implementation, the titanium alloy is generally divided into alpha type, alpha + alpha 0 type and beta type titanium alloys, the titanium alloys are classified according to the action properties of alloy elements and impurities on the beta transition temperature of titanium, the titanium alloys can be divided into alpha stable elements, beta stable elements and neutral elements, Sn and Zr have little influence on the beta transition temperature in the forging process of the titanium alloy and belong to neutral elements, the improvement effect of the room temperature strength of the titanium alloys is small, but the heat strength of the alloys can be greatly improved, Zr also has similar physicochemical properties with Ti, so the two are added into the alloys as a strong effective component, Mo is used as a beta stable element and is similar to Zr, the interatomic lattice structure of the titanium alloys is very similar to Ti, and the atomic radius is also similar to that of the titanium alloys, therefore, as a supplementary ingredient of Zr, the Si element can act in cooperation with Zr, the beta transformation temperature of the titanium alloy is reduced by the Si element, the beta phase region is enlarged, the eutectoid transformation is caused, in the reaction process, the Si has extremely high reaction activity, and once the reaction is started, the quenching treatment of the alloy can not completely inhibit the reaction, so that the element can be ensured to be smoothly fused and combined in the manufacturing processThe gold forms a phase, so the element is selected as one of the main components, and the trace components are added in a mixture form in the actual production, and can be: B. cr, Fe mixture; B. a mixture of Cr and Mn; B. a Cr mixture; B. one of Cr, Fe and Mn mixture, B is known as the vitamin of metal material, a small amount of Cr can greatly improve the plasticity and strength of metal, and the addition of Cr can refine crystal grains and improve the performance of titanium alloy, and similarly, Cr can play a similar role in titanium alloy, so that Cr is used as an essential trace component, but both Cr and Mn can not be added too much, the volume ratio is controlled below 0.1%, Fe and Mn can increase the plasticity and strength of alloy to a certain extent when added to the alloy in the form of trace elements, but the thermal stability of both Fe and Mn is not very strong, which brings certain influence to the forging process, and can be added as appropriate in the occasions with technical basis and use requirements, and can not be added in the conventional occasions.
The selectable components are increased according to the situation after the production supply requirement and the application occasion are comprehensively considered, in the two selectable components, Ta can improve the room temperature and high temperature strength of the alloy, increase the hardenability, balance the metal performance of the alloy at various temperatures, improve the thermal stability of the alloy containing chromium and iron, and create a proper environment for subsequent trace elements.
The preparation method of the large-caliber titanium alloy seamless pipe comprises the following specific steps:
ST1, industrial titanium: from mining to ore dressing to enrichment treatment of the ore, the titanium ore is changed into a titanium-rich material step by step, petroleum coke and Cl2 are added into the titanium-rich material to realize chlorination of the titanium-rich material, a magnesium reduction method is adopted to prepare a mixture of Mg and MgCl2 after refining treatment, the Mg content in the mixture can be reduced after magnesium reduction operation is repeated for many times, and the final product titanium sponge is prepared through vacuum distillation;
ST2, electrode pressing and smelting: pressing the prepared titanium sponge to form a compact block electrode, and performing at least three times of vacuum consumable melting processes on the block electrode by using a VAR method to reduce impurities so as to obtain a purer irregular titanium blank;
ST3, forging: forging the irregular titanium blank obtained after the vacuum consumable melting treatment to change the appearance and improve the technological performance of the irregular titanium blank and obtain a titanium bar blank after forging, wherein the forging process comprises four process steps of ingot cogging, preforming, hammer die forging and press die forging in sequence, the forging environment temperature has different requirements under different steps, the ingot cogging temperature is 1100-1150 ℃, the preforming temperature is 970-1020 ℃, the hammer die forging temperature is 920-970 ℃, and the press die forging temperature is 900-950 ℃;
ST4, acid washing: the titanium at high temperature has high affinity with a gas medium, so that a hard alpha layer is formed on the surface of a forged titanium bar blank, the alpha layer can greatly reduce the metal performance and process plasticity of the titanium bar blank, and the quality of a finished product is affected, so that acid cleaning is needed, on one hand, the acid cleaning can remove the alpha layer, grease and other impurity components on the surface of the titanium bar blank, on the other hand, the titanium bar blank can be subjected to shaping treatment to a certain degree, meanwhile, the acid cleaning process sequentially comprises sand blasting to remove oxide skin, organic solvent cleaning, cold water flushing, acid cleaning, degreasing, wiping, cold water flushing, flowing cold water flushing, spraying and drying, the degreasing step comprises cleaning the titanium bar blank by using industrial ethanol and re-flushing the titanium bar blank by using a mixed solution of acetone and butanol with a volume ratio of 1:1, industrial ethanol can achieve an efficient degreasing function, fingerprint fingerprints can be removed through a mixed solution of acetone and butanol, the surface purity of the titanium bar blank is improved, and dust-free cloth is used for wiping the titanium bar blank instead of volatilizing the titanium bar blank in the wiping step after degreasing, so that various organic components are prevented from being removed unclean;
ST5, extrusion: the method comprises the following steps of extruding a titanium bar blank to enable the appearance size of the titanium bar blank to be close to the design size of a final finished product and reduce the machining allowance, wherein when the extrusion process is carried out, the extrusion temperature is set to be 870-920 ℃, the extrusion ratio is 10-25, the extrusion speed is 90-120 ms/s, the extrusion lubricant is glass lubricant, and the softening point of the glass lubricant is 670-720 ℃;
ST6, piercing-rolling and straightening: after the extrusion process, all the sizes of the titanium bar blank are close to the sizes of finished products, a final perforation rolling process can be carried out, after the titanium bar blank is subjected to a perforation process, a multi-row rolling mill is used for carrying out twice repeated rolling, and then a straightening machine is used for straightening and finally outputting a preformed product, and then a pre-inspection process is carried out on the preformed product, wherein the pre-inspection process comprises sizing measurement, straightness measurement and surface defect detection, the preformed product which meets the requirements can be sequentially subjected to annealing, acid washing, water washing and oil coating storage processes, the preformed product which is subjected to annealing, acid washing, water washing and oil coating storage processes is changed into a finished product, and the unqualified preformed product is subjected to rolling and straightening steps again until the quality requirements of the pre-inspection are met;
ST7, final inspection: and performing final inspection on the finished products stored after oil coating, wherein the final inspection comprises chemical component inspection, mechanical property inspection, water and air pressure inspection, surface quality inspection and overall dimension inspection, in the processes of the chemical component inspection, the surface quality inspection and the overall dimension inspection, one percent of the total number of the finished products in the same batch can be selected, the maximum value of the finished products does not exceed ten, and the minimum value of the finished products is not less than two, the selected finished products are cut off from one third and two thirds of the length of the pipe body, then the finished products divided into three sections are subjected to the processes of the chemical component inspection, the surface quality inspection and the overall dimension inspection, other inspection methods can be performed according to industrial standards, and the finished products completing the final inspection process can enter the final subsequent links of registering and warehousing and selling and the like.
The ST4 pickling process and the ST6 punching rolling and correcting process adopt a water washing pool for washing and water washing steps in cold water, the water washing pool comprises a vibration source 1, a lifting platform 2 and a water tank 3, the vibration source 1 is arranged in the water tank 3, the lifting platform 2 is arranged above the vibration source 1 in the water tank 3, the vibration source 1 comprises electromagnetic strips 11 and a vibrating piece 12, the vibrating piece 12 is horizontally and parallelly arranged in the water tank 3, the electromagnetic strips 11 are oppositely arranged, the two electromagnetic strips 11 which are oppositely arranged are respectively horizontally and transversely arranged right above and below the vibrating piece 12, the two electromagnetic strips 11 which are oppositely arranged are in one group, the electromagnetic strips 11 are arranged in one group or two groups in the vibration source 1 according to requirements, when the groove width of the water tank 3 is too wide, the two groups of electromagnetic strips 11 can be used, when the groove width is not very wide, the group of electromagnetic strips 11 can be arranged only in the middle of the water tank 3, the overlapped part of the electric magnetic stripe 11 and the vibrating reed 12 in each vertical direction is provided with a vibration point, the vibration point comprises an electromagnet 111 and a permanent magnet 121, the permanent magnet 121 is arranged on the vibrating reed 12, the permanent magnet 121 penetrates through the vibrating reed 12, each vibration point comprises two electromagnets 111, the two electromagnets 111 are respectively arranged on the lower end surface of the electromagnetic stripe 11 above the vibrating reed 12 and the upper end surface of the electric magnetic stripe 11 below the vibrating reed 12, the length of the vibrating reed 12 is slightly longer than the groove width of the water groove 3, when the two electromagnets 111 on the same vibration point are continuously electrified and carry out high-speed polarity conversion, a magnetic field with the direction being continuously inverted can be generated, so that the permanent magnet 121 arranged in the middle is enabled to carry out high-speed repeated up-and-down motion, the vibrating reed 12 is driven to vibrate, the purpose of improving the water washing effect by stirring water flow is achieved, and the vibrating reed 12 is driven to vibrate by the electromagnet, greatly eliminates vibration noise and creates a high-quality production working environment.
The four corners of the lifting platform 2 are provided with lifting lugs 21 protruding out of the body of the lifting platform 2, the four corners of the water tank 3 are correspondingly provided with a lifting cylinder 4 at the position where the lifting lugs 21 extend out, the base end of the lifting cylinder 4 is hinged on the outer wall of the water tank 3, the piston end of the lifting cylinder 4 is hinged at the lower end of the lifting lugs 21, when the lifting cylinders 4 arranged at the four corners of the water tank 3 start to work cooperatively, the lifting platform 2 can be controlled to lift from the water tank 3 or fall into the water tank 3, when the titanium bar blank or the preformed product needs to be washed, the lifting platform 2 can fall into the water, when the water washing is stopped, the lifting platform 2 can be controlled to lift, in specific implementation, a special gantry crane can be used to cooperate with a travelling crane to replace the lifting cylinders 4 arranged around the water tank 3, the lifting platform 2 can be separated and get rid of the limitation of the water tank 3, the industrial production is facilitated, and the lifting points are arranged on the lifting platform 2, the titanium bar blank or the preform is fixed on the lifting platform 2 through a clamping point, the clamping point comprises an integral bottom plate 221 and a single pressing plate 222, the integral bottom plate 221 is a long strip-shaped plate body which is arranged at two ends of the lifting platform 2 in parallel, a plurality of trapezoid notches 226 are uniformly and correspondingly arranged on the two integral bottom plates 221 which are arranged in parallel, one single pressing plate 222 is arranged above each trapezoid notch 226 on the integral bottom plate 221, the trapezoid notch 226 is also arranged on the single pressing plate 222, the single pressing plate 222 is fixed on the integral bottom plate 221 through two lead screws 224 which are respectively arranged at two sides of each trapezoid notch 226, each lead screw 224 comprises a rod end and a nut end, the nut end of each lead screw 224 sequentially penetrates through the integral bottom plate 221 and the single pressing plate 222 and then is screwed with a nut, a spring 225 is sleeved between the rod end of each lead screw 224 and the integral bottom plate 221, a handle 223 is arranged on the upper end surface of the single pressing plate 222, and the single pressing plate 222 can be lifted from the integral bottom plate 221 by pulling the handle 223, the titanium rod blank or preform may now be clamped into the trapezoidal shaped slot 226 to effect the securing of the titanium rod blank or preform.
The outer wall of the water tank 3 is provided with a reinforcing frame 31, a water inlet pipe 7 is arranged above the side wall of the water tank 3, the water inlet pipe 7 is communicated with the inside of the water tank 3, a water outlet pipe 6 is arranged beside the water inlet pipe 7, the water outlet pipe 6 comprises an overflow pipe 61 and an emptying pipe 62, the overflow pipe 61 is communicated with the upper side of the side wall of the water tank 3, the emptying pipe 62 is communicated with the tank bottom of the water tank 3, when the water amount in the water tank 3 is too high, the water can spontaneously flow out of the overflow pipe 61 and be collected, the overflow pipe 61 and the emptying pipe 62 are intersected into a pipeline outside the water tank 3, a valve for controlling the opening and closing of the pipeline is arranged on the emptying pipe 62, when the whole water tank 3 needs to be emptied, only a valve arranged on the emptying pipe 62 needs to be opened, the four corners at the bottom of the water tank 3 are provided with support legs 5, the support legs 5 are arranged on the reinforcing frame 31, and the reinforcing frame 31 is provided with a vertical cavity at the positions for installing the support legs 5, the stabilizer blade 5 includes base 51 and perpendicular setting at the well pole 52 of base 51 top, is equipped with the screw thread on the body of rod of well pole 52's the top and has locking to detain 53 on well pole 52, and well pole 52's upper end sets up in the cavity of braced frame 31, and locking is detained 53 and is supported on the support body of braced frame 31 outside the cavity, and when the height of stabilizer blade 5 was adjusted to needs, only need use the instrument to rotate locking to detain 53 can.
The water washing tank for the large-caliber titanium alloy seamless pipe effectively improves the thermoplasticity and the heat strength of the titanium alloy by carrying out the re-proportioning on metal components and further optimizing the processing technology, increases the optional components in the formula, can effectively optimize the cost of a supplier according to the actual use occasion of the supplier, saves the resource investment, improves the washing effect and reduces the washing noise when carrying out the cold water washing step or the water washing step on the titanium bar blank and the preformed product by the water washing tank which is specially designed and drives the vibrating piece to vibrate by the electromagnetism, has the characteristics of reasonable formula proportioning, high efficiency and easy implementation of the preparation method, excellent washing effect of the water washing tank and the like on the whole, and has extremely high practicability and popularization significance.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.
Claims (3)
1. The water washing pool for the large-caliber titanium alloy seamless pipe is characterized by comprising a vibration source (1), a lifting table (2) and a water tank (3), wherein the vibration source (1) is arranged in the water tank (3), the lifting table (2) is arranged above the vibration source (1) in the water tank (3), the vibration source (1) comprises an electric magnetic strip (11) and a vibrating strip (12), the vibrating strip (12) is horizontally and parallelly arranged in the water tank (3) in a plurality of directions, the electric magnetic strips (11) are oppositely arranged, the electric magnetic strips (11) are respectively horizontally and transversely arranged right above and below the vibrating strip (12), vibration points are arranged at the overlapped part of each electric magnetic strip (11) and each vibrating strip (12) in each vertical direction, and each vibration point comprises an electromagnet (111) and a permanent magnet (121), the vibration device is characterized in that the permanent magnet (121) is arranged on the vibration plate (12), the permanent magnet (121) penetrates through the vibration plate (12), each vibration point comprises two electromagnets (111), the two electromagnets (111) are respectively arranged on the lower end surface of the electric magnetic stripe (11) above the vibration plate (12) and the upper end surface of the electric magnetic stripe (11) below the vibration plate (12), lifting lugs (21) protruding out of the body of the lifting platform (2) are arranged at four corners of the lifting platform (2), lifting cylinders (4) are correspondingly arranged at the positions, where the lifting lugs (21) protrude out, of the four corners of the water tank (3), the base end of each lifting cylinder (4) is hinged to the outer wall of the water tank (3), the piston ends of the lifting cylinders (4) are hinged to the lower ends of the lifting lugs (21), and when the lifting cylinders (4) arranged at the four corners of the water tank (3) start to work cooperatively, can control the elevating platform (2) rise or fall into the basin (3) from the basin (3), be provided with the centre gripping on the elevating platform (2), titanium stick base or perform pass through the centre gripping is fixed on the elevating platform (2), the centre gripping includes whole bottom plate (221), monolithic clamp plate (222), whole bottom plate (221) is the long strip plate body of parallel arrangement at elevating platform (2) both ends, two of parallel arrangement whole bottom plate (221) on even corresponding be provided with a plurality of trapezoidal notch (226), monolithic clamp plate (222) all is provided with one in the top of every trapezoidal notch (226) on whole bottom plate (221), also be equipped with trapezoidal notch (226) on monolithic clamp plate (222), monolithic clamp plate (222) is fixed on whole bottom plate (221) through two lead screws (224) that set up respectively on trapezoidal notch (226) both sides, the screw rod (224) comprises a rod end and a nut end, the nut end of the screw rod (224) sequentially penetrates through the integral bottom plate (221) and the single pressing plate (222) and then is screwed with a nut, a spring (225) is sleeved between the rod end of the screw rod (224) and the integral bottom plate (221), a handle (223) is arranged on the upper end face of the single pressing plate (222), a reinforcing frame (31) is arranged on the outer wall of the water tank (3), a water inlet pipe (7) is arranged above the side wall of the water tank (3), the water inlet pipe (7) is communicated with the inside of the water tank (3), a water outlet pipe (6) is arranged beside the water inlet pipe (7), the water outlet pipe (6) comprises an overflow pipe (61) and an emptying pipe (62), the overflow pipe (61) is communicated to the upper part of the side wall of the water tank (3), the emptying pipe (62) is communicated with the bottom of the water tank (3), and the overflow pipe (61) and the emptying pipe (62) are converged into a pipeline outside the water tank (3), and the emptying pipe (62) is provided with a valve for controlling the opening and closing of the pipeline, and four corners of the bottom of the water tank (3) are provided with support legs (5).
2. The water washing pool for the large-caliber titanium alloy seamless pipe as claimed in claim 1, wherein two oppositely arranged electric magnetic strips (11) are arranged in one group, and one or two groups of electric magnetic strips (11) are arranged in the vibration source (1) as required.
3. The water flushing tank for the large-caliber titanium alloy seamless pipe as claimed in claim 1, wherein the supporting leg (5) is arranged on the reinforcing frame (31), the reinforcing frame (31) is provided with a vertical cavity at the position where the supporting leg (5) is installed, the supporting leg (5) comprises a base (51) and a central rod (52) vertically arranged above the base (51), the upper rod body of the central rod (52) is provided with threads, the central rod (52) is sleeved with a locking buckle (53), the upper end of the central rod (52) is arranged in the cavity of the reinforcing frame (31), and the locking buckle (53) abuts against the frame body of the reinforcing frame (31) outside the cavity.
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| CN202111559987.7A CN114231791B (en) | 2021-12-20 | 2021-12-20 | Water flushing tank for large-diameter titanium alloy seamless pipe |
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| CN202111559987.7A CN114231791B (en) | 2021-12-20 | 2021-12-20 | Water flushing tank for large-diameter titanium alloy seamless pipe |
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| CN114231791B true CN114231791B (en) | 2022-06-21 |
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| CN114231791A (en) | 2022-03-25 |
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Denomination of invention: A water flushing tank for large-diameter titanium alloy seamless pipes Effective date of registration: 20230504 Granted publication date: 20220621 Pledgee: Xuancheng SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI BAOTAI COMPOSITE MATERIALS Co.,Ltd. Registration number: Y2023980039652 |
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