CN105908075A - Casting technology of alloy steel bearing block - Google Patents

Casting technology of alloy steel bearing block Download PDF

Info

Publication number
CN105908075A
CN105908075A CN201610375113.9A CN201610375113A CN105908075A CN 105908075 A CN105908075 A CN 105908075A CN 201610375113 A CN201610375113 A CN 201610375113A CN 105908075 A CN105908075 A CN 105908075A
Authority
CN
China
Prior art keywords
bearing block
casting
cast member
hole
electric arc
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
CN201610375113.9A
Other languages
Chinese (zh)
Inventor
钱宜武
钱宜文
胡森
傅世明
谢传根
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.)
Anhui Qianshan Bearing Manufacturing Co Ltd
Original Assignee
Anhui Qianshan Bearing Manufacturing 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 Anhui Qianshan Bearing Manufacturing Co Ltd filed Critical Anhui Qianshan Bearing Manufacturing Co Ltd
Priority to CN201610375113.9A priority Critical patent/CN105908075A/en
Publication of CN105908075A publication Critical patent/CN105908075A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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

Landscapes

  • 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)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention discloses a casting technology of an alloy steel bearing block. The casting technology of the alloy steel bearing block comprises the following steps: (1) smelting; (2) casting; (3) carrying out heat treatment; (4) processing a datum plane; (5) forming holes; and (6) carrying out insulation cooling on a bearing block casting part after holes are formed in the bearing block casting part, wherein the temperature of cooling water is smaller than or equal to 80 DEG C, and the bearing block casting part can be obtained by cleaning after cooling. Compared with the prior art, the casting technology of the alloy steel bearing block has the beneficial effects that the production technology is simple, the probability of shrinkage holes in the obtained bearing block is reduced, requirements of the bearing block casting part are met, and the strength and the overall performance of the bearing block casting part are improved.

Description

A kind of casting technique of steel alloy bearing block
Technical field
The present invention relates to ball bearing housing technical field, be specifically related to the casting of a kind of steel alloy bearing block Make technique.
Background technology
At present, when manufacturing bearing block, the fusion process of bearing block is complicated, it is true to need repeatedly to take out Empty, repeatedly overturn melting, smelting time is long, and difficult quality controls, and alloying component and tissue are all Even property is relatively low；For requiring higher cast-steel chock foundry goods, due to the easy scab of rising head and insulation Weak effect, foundry goods exists crackle, pore, cold shut, shrinkage porosite, sand holes etc. affects castings material cause The casting flaw of close property, has a strong impact on casting quality.
Summary of the invention
It is desirable to provide the casting technique of a kind of steel alloy bearing block.
The present invention provides following technical scheme:
The casting technique of a kind of steel alloy bearing block, comprises the following steps:
(1) smelt: in electric arc furnace, add the raw material of following mass percent: ferrum 35-42 %, carbon 0.35-0.47%, silicon 0.64-0.70%, chromium 0.62-0.75%, nickel 0.38-0.44 %, molybdenum 0.24-0.30%, manganese 0.46-0.57%, be increased to the temperature in electric arc furnace 920-1200 DEG C, the raw material in electric arc furnace is smelted；
(2) casting: open electric arc furnace, releases molten iron, and temperature when releasing molten iron is 1500-1680 DEG C, cast in bull ladle molten iron poured into the die cavity of bearing block, use tree Fat sand manufactures sand mold, at mould surface brushing paint；
(3) heat treatment: the bearing block cast member obtained is quenched and is tempered, described in quench Fire is empty after being heated to 975-1050 DEG C for bearing block cast member forging obtained and be incubated 4-5h Cold, described tempering is that bearing block cast member quenching obtained is heated to 580-630 DEG C and is incubated Water-cooled after 5-6h；
(4) processing datum: the end face of above-mentioned bearing block cast member is processed；
(5) hole machined: the center hole in above-mentioned bearing block cast member end face axial is carried out Roughing and polish processing, described roughing hole is for using diameter less than bearing block center hole The drill bit of intended diameter carries out through hole to bearing block cast member and drills, and obtains pre-holes drilled through；Described Finish Machining Bore is to be respectively adopted boring cutter by the two ends of pre-holes drilled through pre-holes drilled through is carried out reaming Reason, last arrives the center hole for concentric different diameter hole；
(6) the bearing block cast member after hole machined is carried out insulation cooling, coolant water temperature 80 DEG C, carry out after cooling clearing up i.e. obtaining bear-sleeve casting.
In described step (2), coating uses zircon sand quick drying paint.
In described step (4), processing datum is to use in sawing machine, planer, grinding machine three End face is processed as plane by least one.
Compared with prior art, the invention has the beneficial effects as follows: the production technology of the present invention is simple, The bearing block obtained occurs that the probability of shrinkage cavity reduces, and meets the requirement of bear-sleeve casting, strengthens The intensity of bear-sleeve casting and overall performance.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention, Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under not making creative work premise, broadly falls into this The scope of bright protection.
The casting technique of a kind of steel alloy bearing block, comprises the following steps:
(1) smelt: in electric arc furnace, add the raw material of following mass percent: ferrum 35-42 %, carbon 0.35-0.47%, silicon 0.64-0.70%, chromium 0.62-0.75%, nickel 0.38-0.44 %, molybdenum 0.24-0.30%, manganese 0.46-0.57%, be increased to the temperature in electric arc furnace 920-1200 DEG C, the raw material in electric arc furnace is smelted；
(2) casting: open electric arc furnace, releases molten iron, and temperature when releasing molten iron is 1500-1680 DEG C, cast in bull ladle molten iron poured into the die cavity of bearing block, use tree Fat sand manufactures sand mold, at mould surface brushing paint；
(3) heat treatment: the bearing block cast member obtained is quenched and is tempered, described in quench Fire is empty after being heated to 975-1050 DEG C for bearing block cast member forging obtained and be incubated 4-5h Cold, described tempering is that bearing block cast member quenching obtained is heated to 580-630 DEG C and is incubated Water-cooled after 5-6h；
(4) processing datum: the end face of above-mentioned bearing block cast member is processed；
(5) hole machined: the center hole in above-mentioned bearing block cast member end face axial is carried out Roughing and polish processing, described roughing hole is for using diameter less than bearing block center hole The drill bit of intended diameter carries out through hole to bearing block cast member and drills, and obtains pre-holes drilled through；Described Finish Machining Bore is to be respectively adopted boring cutter by the two ends of pre-holes drilled through pre-holes drilled through is carried out reaming Reason, last arrives the center hole for concentric different diameter hole；
(6) the bearing block cast member after hole machined is carried out insulation cooling, coolant water temperature 80 DEG C, carry out after cooling clearing up i.e. obtaining bear-sleeve casting.
In described step (2), coating uses zircon sand quick drying paint.
In described step (4), processing datum is to use in sawing machine, planer, grinding machine three End face is processed as plane by least one.
It is obvious to a person skilled in the art that the invention is not restricted to described one exemplary embodiment Details, and without departing from the spirit or essential characteristics of the present invention, it is possible to it His concrete form realizes the present invention.Therefore, no matter from the point of view of which point, all should be by embodiment Regarding exemplary as, and be nonrestrictive, the scope of the present invention is by claims Rather than described explanation limit, it is intended that by fall claim equivalency implication and In the range of all changes include in the present invention.Although moreover, it will be appreciated that this specification It is been described by according to embodiment, but the most each embodiment only comprises an independent technology Scheme, this narrating mode of description is only for clarity sake, and those skilled in the art should When using description as an entirety, the technical scheme in each embodiment can also be through suitable group Close, form other embodiments that it will be appreciated by those skilled in the art that.

Claims (3)

1. the casting technique of a steel alloy bearing block, it is characterised in that comprise the following steps:
(1) smelt: in electric arc furnace, add the raw material of following mass percent: ferrum 35-42 %, carbon 0.35-0.47%, silicon 0.64-0.70%, chromium 0.62-0.75%, nickel 0.38-0.44 %, molybdenum 0.24-0.30%, manganese 0.46-0.57%, be increased to the temperature in electric arc furnace 920-1200 DEG C, the raw material in electric arc furnace is smelted；
(2) casting: open electric arc furnace, releases molten iron, and temperature when releasing molten iron is 1500-1680 DEG C, cast in bull ladle molten iron poured into the die cavity of bearing block, use tree Fat sand manufactures sand mold, at mould surface brushing paint；
(3) heat treatment: the bearing block cast member obtained is quenched and is tempered, described in quench Fire is empty after being heated to 975-1050 DEG C for bearing block cast member forging obtained and be incubated 4-5h Cold, described tempering is that bearing block cast member quenching obtained is heated to 580-630 DEG C and is incubated Water-cooled after 5-6h；
(4) processing datum: the end face of above-mentioned bearing block cast member is processed；
(5) hole machined: the center hole in above-mentioned bearing block cast member end face axial is carried out Roughing and polish processing, described roughing hole is for using diameter less than bearing block center hole The drill bit of intended diameter carries out through hole to bearing block cast member and drills, and obtains pre-holes drilled through；Described Finish Machining Bore is to be respectively adopted boring cutter by the two ends of pre-holes drilled through pre-holes drilled through is carried out reaming Reason, last arrives the center hole for concentric different diameter hole；
(6) the bearing block cast member after hole machined is carried out insulation cooling, coolant water temperature 80 DEG C, carry out after cooling clearing up i.e. obtaining bear-sleeve casting.
The casting technique of a kind of steel alloy bearing block the most according to claim 1, it is special Levy and be: in described step (2), coating uses zircon sand quick drying paint.
The casting technique of a kind of steel alloy bearing block the most according to claim 1, it is special Levy and be: in described step (4), processing datum is for using sawing machine, planer, grinding machine three In at least one end face is processed as plane.
CN201610375113.9A 2016-05-31 2016-05-31 Casting technology of alloy steel bearing block Pending CN105908075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610375113.9A CN105908075A (en) 2016-05-31 2016-05-31 Casting technology of alloy steel bearing block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610375113.9A CN105908075A (en) 2016-05-31 2016-05-31 Casting technology of alloy steel bearing block

Publications (1)

Publication Number Publication Date
CN105908075A true CN105908075A (en) 2016-08-31

Family

ID=56742875

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610375113.9A Pending CN105908075A (en) 2016-05-31 2016-05-31 Casting technology of alloy steel bearing block

Country Status (1)

Country Link
CN (1) CN105908075A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106591544A (en) * 2016-12-26 2017-04-26 怀宁吉利来精密机械科技有限公司 Casting process of alloy steel bearing pedestal
CN107881297A (en) * 2017-12-05 2018-04-06 徐州博丰轴承有限公司 A kind of processing method of bearing block
CN112247485A (en) * 2020-10-12 2021-01-22 杭州富阳日欣精密机械制造有限公司 Precision machining method for high-precision bearing seat type parts
CN114472949A (en) * 2022-02-28 2022-05-13 镇江康福船舶设备有限公司 Boring process for steel casting for ship steering
CN114888583A (en) * 2022-06-20 2022-08-12 南京大发精密机械制造有限公司 Numerical control machine tool tail end bearing block and machining process thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000111460A (en) * 1998-10-07 2000-04-21 Japan Steel Works Ltd:The Production of fragility simulation test material
JP2000129390A (en) * 1998-10-22 2000-05-09 Sumitomo Metal Ind Ltd Soft high carbon steel sheet for working capable of eliminating pickling stage, and its manufacture
CN102046828A (en) * 2008-03-25 2011-05-04 Skf公司 A bearing component
CN104388628A (en) * 2014-11-27 2015-03-04 王俐帧 Smelting process of bearing block

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000111460A (en) * 1998-10-07 2000-04-21 Japan Steel Works Ltd:The Production of fragility simulation test material
JP2000129390A (en) * 1998-10-22 2000-05-09 Sumitomo Metal Ind Ltd Soft high carbon steel sheet for working capable of eliminating pickling stage, and its manufacture
CN102046828A (en) * 2008-03-25 2011-05-04 Skf公司 A bearing component
CN104388628A (en) * 2014-11-27 2015-03-04 王俐帧 Smelting process of bearing block

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106591544A (en) * 2016-12-26 2017-04-26 怀宁吉利来精密机械科技有限公司 Casting process of alloy steel bearing pedestal
CN107881297A (en) * 2017-12-05 2018-04-06 徐州博丰轴承有限公司 A kind of processing method of bearing block
CN112247485A (en) * 2020-10-12 2021-01-22 杭州富阳日欣精密机械制造有限公司 Precision machining method for high-precision bearing seat type parts
CN114472949A (en) * 2022-02-28 2022-05-13 镇江康福船舶设备有限公司 Boring process for steel casting for ship steering
CN114888583A (en) * 2022-06-20 2022-08-12 南京大发精密机械制造有限公司 Numerical control machine tool tail end bearing block and machining process thereof

Similar Documents

Publication Publication Date Title
CN105908075A (en) Casting technology of alloy steel bearing block
CN100404152C (en) High speed steel composite roll and its preparing method
CN103014534B (en) Cast hot work die steel and processing method thereof
CN101905184B (en) Liquid-state bimetal composite hammer for crusher and manufacturing method thereof
CN103526126A (en) Tool steel roller for rolling medium-thickness plate and manufacturing method thereof
CN104294152A (en) 12Cr2Ni4A structural alloy steel and gear processing and manufacturing method
CN105525230A (en) Method for manufacturing cutting tools from high-speed W18Cr4Nb material
CN101994512A (en) Technology for manufacturing cutting tooth for mining coal and minerals
CN109082509B (en) Heat treatment method for manufacturing high-wind-pressure down-the-hole drill bit by using 40CrNi2MoV and down-the-hole drill bit
CN109482654B (en) Composite roll collar for Kocks rolling mill and manufacturing method thereof
CN104264068A (en) Method for processing mining drill
CN108339913A (en) A kind of forging method of metallurgy mine tram wheel
CN109457086A (en) Nb-microalloying abrasion-resistant cast steel material, its application and preparation method
CN106591544A (en) Casting process of alloy steel bearing pedestal
CN101623922B (en) Manufacturing technology of integral inner and outer inverted V-shaped or inner inverted V-shaped iron-based alloy inner bushing
CN103785815A (en) Manufacturing method of composite roll with outer layer made of high-speed steel
CN103710613A (en) High chromium alloy wear-resistance steel ball
CN103331585A (en) Method for manufacturing isothermal quenching spheroidal graphite cast iron large-scale heavy-load gear
CN116334483A (en) Reducing roller collar based on steel tube rolling mill and manufacturing method thereof
CN108588583B (en) Manufacturing method of wear-resistant rolling mill guide
CN105603318B (en) A kind of processing method of the double hardness tups of low-alloy medium carbon steel
CN107030453A (en) The cold-forging technique of clutch sleeve
CN104227350A (en) Preparing method of retained mandrel
CN103060672A (en) Preparation process for die steel
CN103056164B (en) Reinforced chilled roll and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20160831