CN106381455B - The manufacturing method of alloy, annular forging piece for bearing block - Google Patents

The manufacturing method of alloy, annular forging piece for bearing block Download PDF

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CN106381455B
CN106381455B CN201610785196.9A CN201610785196A CN106381455B CN 106381455 B CN106381455 B CN 106381455B CN 201610785196 A CN201610785196 A CN 201610785196A CN 106381455 B CN106381455 B CN 106381455B
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upset
blank
temperature
manufacturing
steel ingot
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CN106381455A (en
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范禹
刘晔
吴剑
徐锋
陈磊
张斌
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Zhangjiagang Zhonghuan Sea and Land High-end Equipment Co., Ltd.
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Zhangjiagang Hailu Annular Forging Co Ltd
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    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/26—Making machine elements housings or supporting parts, e.g. axle housings, engine mountings
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Abstract

This application discloses the manufacturing method of a kind of alloy for bearing block, annular forging piece, which includes：(1), steel ingot is smelted, which is Φ 1166mm/ Φ 1245mm × 2240mm；(2), blanking；(3), shove charge；(4), heating before forging：It controls into furnace temperature≤400 DEG C, 4h to 850 DEG C of heating simultaneously keeps the temperature 6h；3h to 1050 DEG C of heating simultaneously keeps the temperature 5h；3h to 1250 DEG C of heating simultaneously keeps the temperature 2h；(5), base.The method of the present invention will not lead to the problem of bark pocket and detected defect when manufacturing forging, its mechanical property of the forging obtained meets the requirement of bearing block.

Description

The manufacturing method of alloy, annular forging piece for bearing block
Technical field
This application involves annular forging piece manufacturing technology field, forged more particularly to a kind of alloy for bearing block, annular The manufacturing method of part.
Background technology
It is well known that energy storage device of magnetic suspension flywheel, also known as magnetic suspending flying wheel battery, are to utilize at a high speed rotatably flywheel Energy is stored, it is with its high-specific-power, high-energy-density, charge and discharge are fast, long lifespan and without chemical contamination the features such as are just being subject to each row The attention of each industry, in foreign countries, oneself is used for the civilian industries such as military and harbour, the harbours such as automobile, train, space flight, aviation.China Magnetically levitated flywheel energy storage cause is also in quick development.It needs to be installed in when in use in energy storage device of magnetic suspension flywheel On the mobile traffics such as automobile, train.
Be traditionally used for the annular forging piece of flywheel shaft bearing, easily generated since its size is big, in manufacturing process bark pocket and The problem of detected defect, and the forging obtained its mechanical property is difficult to the needs for meeting flywheel.
The content of the invention
It is existing to overcome it is an object of the invention to provide the manufacturing method of a kind of alloy for bearing block, annular forging piece There is the deficiency in technology.
To achieve the above object, the present invention provides following technical solution：
The embodiment of the present application discloses a kind of alloy for bearing block, and chemical composition is wrapped according to mass ratio (wt%) It includes：C：≤0.18；Si：≤0.5；Mn：0.9~1.65；P≤0.025；S≤0.02；Cu：≤0.55；Cr：≤0.3；Ni≤ 0.5；Nb≤0.05；Ti≤0.05；V≤0.12；Al≥0.02；Mo≤0.1；N≤0.015；CEV≤0.43；Surplus is Fe, Axial mechanical performance meets：Yield strength >=275MPa；450~600MPa of tensile strength；Elongation after fracture >=21%.
Correspondingly, disclosed herein as well is a kind of manufacturing method of annular forging piece, which is Φ 4631mm × Φ 3683mm × 398mm, manufacturing method include：
(1), the steel ingot smelted using the ingredient, the steel ingot size are Φ 1166mm/ Φ 1245mm × 2240mm；
(2), blanking：
The center line of steel ingot is parallel with holding the plane of cradle during blanking, the lower good two section depth of parallelism of blank≤5mm, Both ends of the surface and blank central axis degree≤5mm；
(3), shove charge：
The distance of furnace bottom cushioning iron, steel ingot and burner is more than 500mm；
(4), heating before forging：
It controls into furnace temperature≤400 DEG C, 4h to 850 DEG C of heating simultaneously keeps the temperature 6h；
3h to 1050 DEG C of heating simultaneously keeps the temperature 5h；
3h to 1250 DEG C of heating simultaneously keeps the temperature 2h；
(5), base：
A, upset to height 1600mm after blank is come out of the stove, then chamfered edge, drafts is 50~80mm during chamfered edge, during chamfered edge First press corner angle；
B, blank is upset to Φ 1650mm × 1200mm, pulls out to Φ 1340mm × 1810mm, forging ratio 1.5, upset process In there is groove and need to melt down 1.5~2h of heat preservation；
C, blank is upset to Φ 1800mm × 1000mm, upset to compare 1.8, pulls out to Φ 1465mm × 1500mm, pulls out ratio 1.5；
D, blank is upset to Φ 2240mm × 640mm, upset to compare 2.3, roll forging outer circle to Φ 2000mm × 800mm, blank It turns over upset to Φ 2230mm × 640mm；
E, Φ 440mm punchings；
F, upper saddle support reaming is to Φ 2350mm × Φ 780mm × 645mm；
G, rolling ring.
Preferably, in the manufacturing method of above-mentioned annular forging piece, in the step (5), chamfered edge, pulling and upset process In, blank temperature melts down when being less than 700 DEG C is heated to 1100~1200 DEG C, and keep the temperature 1~1.5 it is small when.
Preferably, in the manufacturing method of above-mentioned annular forging piece, in the step (1), the smelting mode of steel ingot uses Electric furnace+external refining+vacuum outgas.
Compared with prior art, the advantage of the invention is that：
The method of the present invention will not lead to the problem of bark pocket and detected defect when manufacturing forging, its mechanical property of the forging obtained Meet the requirement of bearing block.
Description of the drawings
It in order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments described in application, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 show the graph that preceding heating is forged in the specific embodiment of the invention.
Specific embodiment
The present invention is described further by the following example：According to following embodiments, the present invention may be better understood. However, as it will be easily appreciated by one skilled in the art that the described specific material ratio of embodiment, process conditions and its result are only used In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
Target size Φ 4631mm × Φ 3683mm × 398mm of annular forging piece.
The manufacturing method of annular forging piece, including：
(1), the steel ingot smelted using following ingredient, the smelting mode of steel ingot use electric furnace+external refining+vacuum outgas, The steel ingot size is Φ 1166mm/ Φ 1245mm × 2240mm；
C：≤0.18；Si：≤0.5；Mn：0.9~1.65；P≤0.025；S≤0.02；Cu：≤0.55；Cr：≤0.3；Ni ≤0.5；Nb≤0.05；Ti≤0.05；V≤0.12；Al≥0.02；Mo≤0.1；N≤0.015；CEV≤0.43；Surplus is Fe.
(2), blanking：
The center line of steel ingot is parallel with holding the plane of cradle during blanking, the lower good two section depth of parallelism of blank≤5mm, Both ends of the surface and blank central axis degree≤5mm；
(3), shove charge：
The distance of furnace bottom cushioning iron, steel ingot and burner is more than 500mm；
(4), with reference to shown in Fig. 1, heating before forging：
It controls into furnace temperature≤400 DEG C, 4h to 850 DEG C of heating simultaneously keeps the temperature 6h；
3h to 1050 DEG C of heating simultaneously keeps the temperature 5h；
3h to 1250 DEG C of heating simultaneously keeps the temperature 2h；
(5), base：
A, upset to height 1600mm after blank is come out of the stove, then chamfered edge, drafts is 50~80mm during chamfered edge, during chamfered edge First press corner angle；
B, blank is upset to Φ 1650mm × 1200mm, pulls out to Φ 1340mm × 1810mm, forging ratio 1.5, upset process In there is groove and need to melt down 1.5~2h of heat preservation；
C, blank is upset to Φ 1800mm × 1000mm, upset to compare 1.8, pulls out to Φ 1465mm × 1500mm, pulls out ratio 1.5；
D, blank is upset to Φ 2240mm × 640mm, upset to compare 2.3, roll forging outer circle to Φ 2000mm × 800mm, blank It turns over upset to Φ 2230mm × 640mm；
E, Φ 440mm punchings；
F, upper saddle support reaming is to Φ 2350mm × Φ 780mm × 645mm；
G, rolling ring.
In step (5), chamfered edge, pulling and it is upset during, blank temperature melted down when being less than 700 DEG C be heated to 1100~ 1200 DEG C, and keep the temperature 1~1.5 it is small when.
Measuring mechanical property is carried out to forging, is joined shown in table 1.
Table 1
Can be seen that by its microstructure and be evenly distributed with ferrite and pearlite, grain size be more than 6 grades, surface without Crackle, folding, scar and other the defects of can influencing forging quality.
Here, it should also be noted that, in order to avoid because having obscured the present invention during unnecessary details, in the accompanying drawings only It shows the structure and/or processing step closely related with scheme according to the present invention, and is omitted little with relation of the present invention Other details.
Finally, it is to be noted that, term " comprising ", "comprising" or its any other variant be intended to it is non-exclusive Property include so that process, method, article or equipment including a series of elements not only include those elements, but also Further include other elements that are not explicitly listed or further include for this process, method, article or equipment it is intrinsic Element.

Claims (2)

1. a kind of manufacturing method of annular forging piece, which is characterized in that the annular forging piece size for Φ 4631mm × Φ 3683mm × 398mm, manufacturing method include：
(1), included using the chemical composition of steel ingot according to mass ratio (wt%)：C：≤0.18；Si：≤0.5；Mn：0.9~ 1.65；P≤0.025；S≤0.02；Cu：≤0.55；Cr：≤0.3；Ni≤0.5；Nb≤0.05；Ti≤0.05；V≤0.12；Al ≥0.02；Mo≤0.1；N≤0.015；CEV≤0.43；Surplus is Fe, and axial mechanical performance meets：Yield strength >= 275MPa；450~600MPa of tensile strength；Elongation after fracture >=21%, the steel ingot size for Φ 1166mm/ Φ 1245mm × 2240mm；
(2), blanking：
The center line of steel ingot is parallel with holding the plane of cradle during blanking, the lower good two section depth of parallelism of blank≤5mm, both ends Face and blank central axis degree≤5mm；
(3), shove charge：
The distance of furnace bottom cushioning iron, steel ingot and burner is more than 500mm；
(4), heating before forging：
It controls into furnace temperature≤400 DEG C, 4h to 850 DEG C of heating simultaneously keeps the temperature 6h；
3h to 1050 DEG C of heating simultaneously keeps the temperature 5h；
3h to 1250 DEG C of heating simultaneously keeps the temperature 2h；
(5), base：
A, upset to height 1600mm after blank is come out of the stove, then chamfered edge, drafts is 50~80mm during chamfered edge, and when chamfered edge first presses Corner angle；
B, blank is upset to Φ 1650mm × 1200mm, pulls out to Φ 1340mm × 1810mm, forging ratio 1.5, goes out during upset Existing groove need to melt down 1.5~2h of heat preservation；
C, blank is upset to Φ 1800mm × 1000mm, upset to compare 1.8, pulls out to Φ 1465mm × 1500mm, pulls out ratio 1.5；
D, blank is upset to Φ 2240mm × 640mm, and upset to compare 2.3, roll forging outer circle to Φ 2000mm × 800mm, blank turns over It is upset to Φ 2230mm × 640mm；
E, Φ 440mm punchings；
F, upper saddle support reaming is to Φ 2350mm × Φ 780mm × 645mm；
G, rolling ring,
In the step (5), chamfered edge, pulling and it is upset during, blank temperature melted down when being less than 700 DEG C be heated to 1100~ 1200 DEG C, and keep the temperature 1~1.5 it is small when.
2. the manufacturing method of annular forging piece according to claim 1, it is characterised in that：In the step (1), the smelting of steel ingot Refining mode uses electric furnace+external refining+vacuum outgas.
CN201610785196.9A 2016-08-31 2016-08-31 The manufacturing method of alloy, annular forging piece for bearing block Active CN106381455B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107866665B (en) * 2017-10-10 2019-06-21 张家港中环海陆特锻股份有限公司 Million MW class nuclear power unit high intensity retaining ring manufacturing process
CN109943784B (en) * 2019-04-08 2021-01-01 张家港中环海陆高端装备股份有限公司 Manufacturing process of low-alloy high-strength structural steel bearing seat for nuclear power

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101592131A (en) * 2009-06-19 2009-12-02 张家港海陆环形锻件有限公司 Ring forging of rotary support ring for wind power equipment and manufacture method thereof
CN101767177A (en) * 2009-12-31 2010-07-07 上海新闵重型锻造有限公司 Method for forging bearing support forge piece
CN102703818A (en) * 2012-06-11 2012-10-03 张家港海陆环形锻件有限公司 Material for overweight ring forging and manufacturing process for ring forging
CN105499933A (en) * 2016-01-15 2016-04-20 张家港中环海陆特锻股份有限公司 Technology for manufacturing ring forge piece from F92 steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101592131A (en) * 2009-06-19 2009-12-02 张家港海陆环形锻件有限公司 Ring forging of rotary support ring for wind power equipment and manufacture method thereof
CN101767177A (en) * 2009-12-31 2010-07-07 上海新闵重型锻造有限公司 Method for forging bearing support forge piece
CN102703818A (en) * 2012-06-11 2012-10-03 张家港海陆环形锻件有限公司 Material for overweight ring forging and manufacturing process for ring forging
CN105499933A (en) * 2016-01-15 2016-04-20 张家港中环海陆特锻股份有限公司 Technology for manufacturing ring forge piece from F92 steel

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