CN113399627A - Casting process for machine tool component - Google Patents

Casting process for machine tool component Download PDF

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Publication number
CN113399627A
CN113399627A CN202110474607.3A CN202110474607A CN113399627A CN 113399627 A CN113399627 A CN 113399627A CN 202110474607 A CN202110474607 A CN 202110474607A CN 113399627 A CN113399627 A CN 113399627A
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CN
China
Prior art keywords
casting
machine tool
percent
tool component
casting process
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110474607.3A
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Chinese (zh)
Inventor
李华栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Pengsheng Casting Co ltd
Original Assignee
Xuzhou Pengsheng Casting Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou Pengsheng Casting Co ltd filed Critical Xuzhou Pengsheng Casting Co ltd
Priority to CN202110474607.3A priority Critical patent/CN113399627A/en
Publication of CN113399627A publication Critical patent/CN113399627A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04—Handling or stripping castings or ingots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Factory Administration (AREA)

Abstract

The invention discloses a casting process for machine tool components, which comprises the following steps of S1, introducing casting metal into a preheated smelting induction furnace for smelting, heating to a molten state, mechanically stirring raw materials, adjusting the temperature to 1600 ℃ and 1800 ℃, and preserving the temperature for 30-50 min; and S2, taking out the molten metal sample for component content analysis, and adjusting the components of the molten metal raw material according to the component content analysis until the composition of the molten metal raw material meets the composition range of the casting. According to the casting process for the machine tool component, whether a blank casting has defects is detected through the flaw detection detector, normal processing of the casting in subsequent processing procedures is guaranteed, and whether the use hardness of the blank casting reaches the standard brick of the machine tool component is detected through the hardness tester, so that the yield of the machine tool casting is effectively improved, unnecessary subsequent casting processing of defective castings is avoided, and the processing cost of the machine tool component is reduced.

Description

Casting process for machine tool component
Technical Field
The invention relates to the technical field of fruit and vegetable enzyme, in particular to a casting process for machine tool components.
Background
Machine tools are devices for manufacturing machines, also called machine tools or machine tools, and are conventionally called machine tools for short, and generally classified into metal cutting machine tools, forging machine tools, woodworking machine tools, and the like.
The casting process of machine tool components generally adopts the traditional sand casting and heat treatment process, and the quality of the machine tool castings cannot be effectively monitored in the manufacturing process, so that certain processing risk exists.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a casting process for machine tool components, which achieves the effect of reducing the quality processing risk in the process of remembering castings.
(II) technical scheme
The invention provides a casting process for machine tool components, which comprises the following steps:
s1, introducing the casting metal into a preheated smelting induction furnace for smelting, heating to a molten state, mechanically stirring the raw materials, adjusting the temperature to 1600-1800 ℃, and preserving the temperature for 30-50 min;
s2, taking out a molten metal sample for component content analysis, and adjusting the components of the molten metal material according to the component content analysis until the component content of the molten metal material meets the component composition range of the casting;
s3, pouring the liquid raw material with the adjusted components in the S2 into a manufactured sand mold through a smelting induction furnace, and controlling the temperature of the metal raw material to be 1400-1600 ℃ when the metal raw material is injected into the mold;
s4, cooling the sand mold injected with the liquid raw material in S3, demoulding after complete cooling to obtain a blank casting of the machine tool component, performing shakeout cleaning to remove attachments on the surface of the casting, detecting whether the blank casting has defects by adopting a flaw detection detector, and detecting whether the hardness of the casting meets the hardness requirement of the machine tool component by using a hardness tester;
s5, carrying out coarse grinding on the blank casting by using grinding equipment, and carrying out primary grinding treatment by taking the coarse grinding surface of the blank casting as a reference surface;
s6, introducing the cast which is primarily polished into a quenching furnace for preheating treatment, and then quenching at high temperature of 850 ℃ in the quenching furnace, wherein the quenching temperature is 800-; and S7, cooling by water after quenching and heat preservation, immediately tempering after the casting is cooled, introducing the casting into a tempering furnace, heating to 500-680 ℃, preserving heat for 30-40min at the wall thickness of 25mm, and then discharging and cooling.
Preferably, the machine tool component is made of the following raw materials in parts by mass, and comprises the following chemical components in percentage: : 1.2 to 1.6 percent of carbon, 0.55 to 1 percent of manganese, 0.11 to 0.15 percent of copper, 6 to 8 percent of chromium, 0.5 to 0.8 percent of titanium, 0.05 to 0.09 percent of tungsten, 0.1 to 0.3 percent of calcium, 0.16 to 0.32 percent of vanadium, less than or equal to 0.02 percent of P, less than or equal to 0.02 percent of S, and the balance of iron and other trace elements.
Preferably, the rough grinding process in step S5 is performed by rough grinding with artificial sand paper.
Preferably, the flaw detector is an ultrasonic flaw detector.
Preferably, the sand mold is cooled in a natural cooling mode in the step S4, and the casting is cooled in a natural cooling mode in the step S7.
Preferably, after the casting is naturally cooled in the step S7, the casting is subjected to finish machining by using a numerical control machining center, a numerical control lathe, a drilling machine, a tapping machine, or the like.
(III) advantageous effects
The invention provides a casting process for machine tool components, which has the following beneficial effects:
this casting process for machine tool component, through adjusting the raw materials composition of machine tool component, the effectual toughness that has increased the machine tool foundry goods, and metal raw materials carries out composition analysis adjustment under the molten condition, the precision of effectual assurance machine tool component composition improves the comprehensive performance of foundry goods, and the foundry goods is after the shaping, whether there is the defect through the detection of detecting a flaw detector detection blank foundry goods, guarantee the normal processing of foundry goods in subsequent manufacturing procedure, and the sclerometer detects whether the use hardness of blank foundry goods reaches machine tool component standard brick, thereby the yields of effectual improvement machine tool foundry goods, avoid the subsequent casting processing of unnecessary defective products foundry goods, reduce the processing cost of machine tool component.
Detailed Description
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme, and relates to a casting process for machine tool components, which comprises the following steps:
s1, introducing the cast metal into a preheated smelting induction furnace for smelting, heating to a molten state, mechanically stirring the raw materials, adjusting the temperature to 1600-1800 ℃, and preserving the temperature for 30-50min, wherein the machine tool component is prepared from the following raw materials in parts by mass and comprises the following chemical components in percentage: : 1.2 to 1.6 percent of carbon, 0.55 to 1 percent of manganese, 0.11 to 0.15 percent of copper, 6 to 8 percent of chromium, 0.5 to 0.8 percent of titanium, 0.05 to 0.09 percent of tungsten, 0.1 to 0.3 percent of calcium, 0.16 to 0.32 percent of vanadium, less than or equal to 0.02 percent of P, less than or equal to 0.02 percent of S, and the balance of iron and other trace elements;
s2, taking out a molten metal sample for component content analysis, and adjusting the components of the molten metal material according to the component content analysis until the component content of the molten metal material meets the component composition range of the casting;
s3, pouring the liquid raw material with the adjusted components in the S2 into a manufactured sand mold through a smelting induction furnace, and controlling the temperature of the metal raw material to be 1400-1600 ℃ when the metal raw material is injected into the mold;
s4, cooling the sand mold injected with the liquid raw material in S3, cooling the sand mold in a natural cooling mode, demoulding after complete cooling to obtain a blank casting of the machine tool component, performing shakeout cleaning to remove attachments on the surface of the casting, detecting whether the blank casting has defects by using a flaw detection detector, selecting an ultrasonic flaw detection detector as the flaw detection detector, and detecting whether the hardness of the casting meets the hardness requirement of the machine tool component by using a hardness meter;
s5, carrying out coarse grinding on the blank casting by using grinding equipment, carrying out primary grinding treatment by taking the coarse grinding surface of the blank casting as a reference surface, and grinding by adopting a manual sand paper coarse grinding mode;
s6, introducing the cast which is primarily polished into a quenching furnace for preheating treatment, and then quenching at high temperature of 850 ℃ in the quenching furnace, wherein the quenching temperature is 800-;
and S7, cooling by water after quenching and heat preservation, cooling by adopting a natural cooling mode of the casting in the step S7, immediately tempering after cooling the casting, introducing the casting into a tempering furnace, heating to 500-680 ℃, preserving heat for 30-40min at the wall thickness of 25mm, discharging and cooling, and finely processing the casting by adopting a numerical control machining center, a numerical control lathe, a drilling machine or a tapping machine and the like.
In conclusion, the machine tool component is used in a casting process.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A casting process for machine tool components is characterized in that: the casting process for the machine tool component comprises the following steps:
s1, introducing the casting metal into a preheated smelting induction furnace for smelting, heating to a molten state, mechanically stirring the raw materials, adjusting the temperature to 1600-1800 ℃, and preserving the temperature for 30-50 min;
s2, taking out a molten metal sample for component content analysis, and adjusting the components of the molten metal material according to the component content analysis until the component content of the molten metal material meets the component composition range of the casting;
s3, pouring the liquid raw material with the adjusted components in the S2 into a manufactured sand mold through a smelting induction furnace, and controlling the temperature of the metal raw material to be 1400-1600 ℃ when the metal raw material is injected into the mold;
s4, cooling the sand mold injected with the liquid raw material in S3, demoulding after complete cooling to obtain a blank casting of the machine tool component, performing shakeout cleaning to remove attachments on the surface of the casting, detecting whether the blank casting has defects by adopting a flaw detection detector, and detecting whether the hardness of the casting meets the hardness requirement of the machine tool component by using a hardness tester;
s5, carrying out coarse grinding on the blank casting by using grinding equipment, and carrying out primary grinding treatment by taking the coarse grinding surface of the blank casting as a reference surface;
s6, introducing the cast which is primarily polished into a quenching furnace for preheating treatment, and then quenching at high temperature of 850 ℃ in the quenching furnace, wherein the quenching temperature is 800-;
and S7, cooling by water after quenching and heat preservation, immediately tempering after the casting is cooled, introducing the casting into a tempering furnace, heating to 500-680 ℃, preserving heat for 30-40min at the wall thickness of 25mm, and then discharging and cooling.
2. A casting process for a machine tool component according to claim 1, wherein the machine tool component is made from the following raw materials in parts by mass and comprises the following chemical components in percentage: : 1.2 to 1.6 percent of carbon, 0.55 to 1 percent of manganese, 0.11 to 0.15 percent of copper, 6 to 8 percent of chromium, 0.5 to 0.8 percent of titanium, 0.05 to 0.09 percent of tungsten, 0.1 to 0.3 percent of calcium, 0.16 to 0.32 percent of vanadium, less than or equal to 0.02 percent of P, less than or equal to 0.02 percent of S, and the balance of iron and other trace elements.
3. A casting process for a machine tool component according to claim 1, wherein the rough grinding in step S5 is performed by rough grinding with artificial sand paper.
4. A casting process for a machine tool component according to claim 1, wherein: the flaw detector is an ultrasonic flaw detector.
5. A casting process for a machine tool component according to claim 1, wherein: and in the step S4, the sand mold is cooled in a natural cooling mode, and in the step S7, the casting is cooled in a natural cooling mode.
6. A casting process for a machine tool component according to claim 1, wherein: and in the step S7, after the casting is naturally cooled, finish machining is carried out on the casting by adopting a numerical control machining center, a numerical control lathe, a drilling machine or a tapping machine and the like.
CN202110474607.3A 2021-04-29 2021-04-29 Casting process for machine tool component Pending CN113399627A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114227184A (en) * 2022-01-18 2022-03-25 东台威达鑫精密模具有限公司 Machining process for servo motor tray die

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103667866A (en) * 2013-11-16 2014-03-26 宁国市开源电力耐磨材料有限公司 Special high-chromium grinding ball for mining and secondary modification processing technique thereof
CN107099751A (en) * 2017-04-26 2017-08-29 含山县朝霞铸造有限公司 A kind of high-intensity high-tenacity steel and its casting technique
CN108034882A (en) * 2017-12-07 2018-05-15 泰州市博世特精密铸造有限公司 A kind of hard, wear-resistant automobile pump precision casting process
CN109773420A (en) * 2018-12-31 2019-05-21 枞阳县中邦科技信息咨询有限公司 A kind of manufacturing method of centrifugal pump impeller
CN110560663A (en) * 2019-08-21 2019-12-13 徐州东坤耐磨材料有限公司 casting processing technology of water pump impeller
CN110760665A (en) * 2019-11-13 2020-02-07 永卓防务科技有限公司 Production process of high-wear-resistance roller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103667866A (en) * 2013-11-16 2014-03-26 宁国市开源电力耐磨材料有限公司 Special high-chromium grinding ball for mining and secondary modification processing technique thereof
CN107099751A (en) * 2017-04-26 2017-08-29 含山县朝霞铸造有限公司 A kind of high-intensity high-tenacity steel and its casting technique
CN108034882A (en) * 2017-12-07 2018-05-15 泰州市博世特精密铸造有限公司 A kind of hard, wear-resistant automobile pump precision casting process
CN109773420A (en) * 2018-12-31 2019-05-21 枞阳县中邦科技信息咨询有限公司 A kind of manufacturing method of centrifugal pump impeller
CN110560663A (en) * 2019-08-21 2019-12-13 徐州东坤耐磨材料有限公司 casting processing technology of water pump impeller
CN110760665A (en) * 2019-11-13 2020-02-07 永卓防务科技有限公司 Production process of high-wear-resistance roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114227184A (en) * 2022-01-18 2022-03-25 东台威达鑫精密模具有限公司 Machining process for servo motor tray die

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