CN110508792A - A kind of casting method of the more material casting of lathe - Google Patents
A kind of casting method of the more material casting of lathe Download PDFInfo
- Publication number
- CN110508792A CN110508792A CN201910864032.9A CN201910864032A CN110508792A CN 110508792 A CN110508792 A CN 110508792A CN 201910864032 A CN201910864032 A CN 201910864032A CN 110508792 A CN110508792 A CN 110508792A
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- Prior art keywords
- casting
- guide rail
- alloy
- poured
- molten iron
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/007—Treatment of the fused masses in the supply runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of casting methods of the more material casting of lathe, belong to casting technology field.This method is by carrying out Casting Technological Analysis to casting, casting is long to be arranged a set of running gate system to the every side in end, every set running gate system includes two sets of casting devices (casting device I and casting device II), so that casting mold is divided into upper and lower two parts, to be poured respectively；For the guide rail position of hardness and wear resistance with higher, when being poured, alloy block is embedded in casting device I, molten iron changes the ingredient of alloy in molten iron in casting by washing away alloy block, the graphite matrix tissue and content of pearlite in alloy at guide rail position are changed in the way of alloying, to improve the high rigidity and wearability at casting guide rail.
Description
Technical field
The present invention relates to a kind of casting methods of the more material casting of lathe, belong to casting technology field.
Background technique
The material with guide rail casting such as crossbeam, lathe bed, column of lathe casting is mostly grey cast-iron, rail sections requirement
Density is good, hardness and wear resistance with higher, these positions are most thick big parts in entire casting.If by improving casting
The iron trade mark improves the hardness and wear resistance at this position of casting, according to the rule of the principle of metallic crystal and solidification sequence, these
Thick big position is easy to produce casting flaw, shrinkage cavity and shrinkage porosite is easy to produce in casting process, microscopic structure also will appear crystal grain
Situations such as coarse and graphite form is undesirable reduces casting once the service performance of casting will be impacted by generating drawbacks described above
It in service performance, quality and the service life of part, results even in casting and scraps, while also reducing the castability at other positions of casting
Energy.
Summary of the invention
To solve the above-mentioned problems, meet the hardness and wear resistance at guide rail class casting guide rail position using functional requirement,
The present invention provides a kind of casting methods of the more material casting of lathe, are related to casting of the heavy duty machine tools with guide rail class casting, and
And it is related to for the special technique processing at casting guide rail.
The technical solution adopted by the present invention to solve the technical problems is: a kind of casting method of the more material casting of lathe,
Two sets of casting devices, casting device I and casting is arranged by carrying out Casting Technological Analysis to casting in this method in running gate system
Device II makes casting mold be divided into upper and lower two parts, is poured respectively；In the guide rail to hardness and wear resistance with higher
When position is poured, it is embedded with alloy block in casting device I, when molten iron casting changes in molten iron and washing away alloy block closes
The ingredient of gold, changes the graphite matrix tissue (refinement) and content of pearlite in alloy at guide rail position, to mention in the way of alloying
At high casting guide rail and the high rigidity and wearability of adjacent domain.
Further, the main component of pre-buried alloy block are as follows: Cu, Sn, Si, Ba etc. synthesize alloy according to its chemical component
Block carries out green compact.
The beneficial effects of the present invention are: two sets of casting devices independent that the present invention is arranged by running gate system, are poured
Dispensing device I and casting device II make casting mold be divided into upper and lower two parts, are poured respectively；To hardness with higher with
When the guide rail position of wearability is poured, due to pre-buried alloy block in casting device I, molten iron is in casting by washing away alloy
Block changes the ingredient of alloy in molten iron, changes graphite matrix tissue (refinement) and the pearl at guide rail position in the way of alloying
Body of light content, to improve the high rigidity and wearability at casting guide rail.It is poured lathe guide rail part with out-of-date methods, due to alloy
Liquid contraction and solidification shrinkage, be easy to produce shrinkage cavity and shrinkage porosite, reduce the effective area and stress concentration phenomenon of stress,
And the mechanical performance of casting is significantly reduced, the present invention shows that the overall structure of casting is complete by experiment and trial production verifying,
Bulk mechanical performance meets design requirement, and the graphite form, matrix microscopic structure and mechanical property at guide rail meet the requirements, and shows
The effect of the technological measure taken through the invention and local specified chemical ingredient is guaranteeing casting overall performance and quality
Under the premise of, the microstructure mechanical property at casting guide rail is improved, and then improve the wearability at this, solves lathe
The properties and microstructure problem at bed casting guide rail position meets the requirement that the position meets design.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic diagram of the embodiment of the present invention.
Fig. 3 is the placement schematic diagram of alloy block of the invention.
Fig. 4 is the schematic diagram of ingate of the invention.
Fig. 5 is the schematic diagram of mouth of a river case of the invention.
Fig. 6 is the schematic diagram of casting device I of the invention.
Fig. 7 is the placement schematic diagram of attached body coupon of the invention.
Fig. 8 is the schematic diagram of casting device II of the invention.
Figure label:
1, casting device I；2, casting device II；3, mouth of a river case；4, alloy block；5, attached body coupon；6, casting device I
Ingate；7, the ingate of casting device II；8, the mouth of a river is stifled；9, the sprue of casting device I；10, casting device II
Sprue；11, the cross gate of casting device I.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
Referring to Figure 1-8, we describe it and were embodied by taking the production of 102042141-0110001 crossbeam as an example below
Journey.The spray weight are as follows: 9700Kg, material are as follows: HT300, the technique being poured simultaneously using two sets of both ends running gate system, with
Prevent cold shut.We are by being calculated, from guide rail position bottom up 80mm, weight 2000Kg, according to calculating, guide rail
The duration of pouring at position is about 60s.
Operating procedure:
1, Casting Technological Analysis is carried out to casting, two sets casting devices are arranged in every set running gate system, such as Fig. 3 casting device I 1 with pour
Dispensing device II 2 makes casting mold be divided into upper and lower two parts, is poured respectively, and two sets of casting devices are respectively independent, does not interfere with each other.
Mouth of a river case 3 is cabinet of the top without capping, and using eyes separate type, inner bottom surface is in two layers of step type, upper layer ladder bottom
Face is communicated with the sprue 9 of casting device I 1, lower layer's ladder bottom surface is communicated with the sprue 10 of casting device II 2, and is equipped with and is inserted
Enter the buoyancy mouth of a river stifled 8 of II 2 sprue of casting device；Two sets of casting devices I 1 are individually positioned in the long Xiang Duantou of casting, and two sets are poured
Dispensing device I 1 always in conjunction with our unit's condition of production, and compares Suo Boliefu and Rabin according to " Ah temporary " formula into iron 2000Kg
The verification of Milunovich icon, determines the duration of pouring；Two sets of casting devices II 2 are also individually positioned in the long Xiang Duantou of casting, remaining molten iron
Enter from casting device II 2.Casting device I 1 and casting device II 2 into iron sequence and time by blocked up with the mouth of a river 8 the dedicated mouth of a river
Case 3 is controlled using law of buoyancy, and casting device is that molten metal is guided to enter the channel of casting mold type chamber, rationally whether, to casting
The influence of quality is very big, easily causes various types of casting flaws.
2, when moulding, pre-buried alloy block 4, main component are as follows: Cu, Sn, Si, Ba below I 1 cross gate of casting device
Deng intermediate alloy block 4 is embedded under the cross gate 11 of two sets of casting devices I of nowel and pours with stream.
3, according to the position that opens up of the ingate 7 of the ingate 6 of multiple casting devices I and casting device II, metal is controlled
Liquid fills speed and the direction of casting mold, improves flow distribution, adjusts the temperature of casting mold each section and the solidification sequence of casting, and right
Casting has certain feeding effect.
4, the molten iron for being HT300 using the 5T Medium frequency induction electromagnetic oven melting trade mark, after smelting temperature reaches 1480 DEG C, stokehold
Analytical chemistry ingredient, it is qualified after tapping, pour into two ladle, the weight of molten iron is 6000Kg(first in two ladle
Packet) and the packet of 6000Kg(second), purified treatment is carried out to two iron clad water respectively.When the first iron clad coolant-temperature gage is down to 1380 DEG C,
Start to be poured simultaneously from two sets of two sides running gate system, first water nozzle stifled 8 is directly poured the casting device II in two sets of running gate systems
Road 10 blocks, it is ensured that molten iron is first poured out of casting device I 1, after being poured 60s, 3 liquid level of mouth of a river case is controlled, by dedicated water
Mouth case 3 makes the mouth of a river stifled 8 float using law of buoyancy control, and because liquid level declines, molten iron stops entering from casting device I 1, starts
It is poured out of casting device II 2, until casting-up is completed.
5, the performance and quality of casting are tested with attached body coupon 5, attached body coupon 5 is uniformly placed on casting length into face, hair
The casting quality of billet cast piece is most important for the quality of engineering goods important component, in order to detect the quality of casting, generally
While being poured casting, it is poured out quality attached body coupon 5 identical with casting, then by making machinery to attached body coupon 5
The result of the test of performance and metallographic structure determines the quality of corresponding casting.Attached body coupon 5 is commonly connected directly in casting
Surface is poured together with casting, therefore its pouring technology condition and casting are very close, can more accurately reflect the reality of casting
Border performance.
The casting overall structure being poured with this method is complete, and casting is in casting process, the alloy of pre-buried alloy block 4
Element is brought into guide rail and adjacent domain with the flowing of iron liquid, so as to generate crystal grain under pre-buried alloying element thin for the position casting
Change, graphite form improve and matrix microscopic structure is converted to pearlite, and bulk mechanical performance meets design requirement, the stone at guide rail
Black form, matrix microscopic structure and mechanical property meet the requirements, and show that the technological measure taken through the invention and part are special
The effect for determining chemical component improves the microstructure at casting guide rail under the premise of guaranteeing casting overall performance and quality
Mechanical property, and then improve at this and the mechanical property and wearability of adjacent domain casting.
Claims (4)
1. a kind of casting method of the more material casting of lathe, makes casting mold be divided into upper and lower two parts, is poured respectively, special
Sign is: every set running gate system includes two sets of casting devices, casting device I (1) and casting device II (2), higher to having
The guide rail position of hardness and wear resistance when being poured, pre-buried alloy block (4) in casting device I (1) is led in molten iron casting
It crosses and washes away the ingredient that alloy block (4) change alloy in molten iron, change the graphite matrix group at guide rail position in the way of alloying
It knits and content of pearlite in alloy.
2. a kind of casting method of the more material casting of lathe according to claim 1, it is characterised in that: every set pours
Two sets of casting devices in injection system are respectively independent, do not interfere with each other.
3. a kind of casting method of the more material casting of lathe according to claim 1, it is characterised in that: described pours filling
It sets I (1) and is attached to alloy block structure, when molten iron flows through, brought the alloying component in alloy block (4) to the phase of casting by liquid stream
Answer position, i.e. guide rail position.
4. a kind of casting method of the more material casting of lathe according to claim 1, it is characterised in that: the casting system
The mouth of a river case (3) used unite as eyes separate type, without capping, inner bottom surface is in two layers of step type, upper layer rank on cabinet top
Terraced bottom surface and casting device(1) sprue (9) communicates, lower layer's ladder bottom surface and casting device(2) sprue (10) phase
It is logical, and it is equipped with insertion casting device(2) (8) are blocked up at the buoyancy mouth of a river of sprue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864032.9A CN110508792A (en) | 2019-09-12 | 2019-09-12 | A kind of casting method of the more material casting of lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864032.9A CN110508792A (en) | 2019-09-12 | 2019-09-12 | A kind of casting method of the more material casting of lathe |
Publications (1)
| Publication Number | Publication Date |
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| CN110508792A true CN110508792A (en) | 2019-11-29 |
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| CN201910864032.9A Withdrawn CN110508792A (en) | 2019-09-12 | 2019-09-12 | A kind of casting method of the more material casting of lathe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523194A (en) * | 2021-07-24 | 2021-10-22 | 共享装备股份有限公司 | Staggered pouring structure |
| CN115106501A (en) * | 2022-06-06 | 2022-09-27 | 芜湖泓鹄材料技术有限公司 | Casting process of full-mold casting machine tool body |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522482A (en) * | 1978-08-07 | 1980-02-18 | Kawasaki Heavy Ind Ltd | Alloy melting method |
| SU994102A1 (en) * | 1980-12-05 | 1983-02-07 | Харьковский Ордена Ленина И Ордена Октябрьской Революции Моторостроительный Завод "Серп И Молот" | Casting cup for treating liquid metal by additives |
| JPS5832543A (en) * | 1981-08-21 | 1983-02-25 | Sumitomo Metal Ind Ltd | Manufacture and device for clad ingot |
| JPH11320074A (en) * | 1998-05-13 | 1999-11-24 | Isuzu Motors Ltd | Production of gradient casting having transition structure and its casting mold |
| JP2003191068A (en) * | 2001-12-25 | 2003-07-08 | Aisin Takaoka Ltd | Cast iron part and its producing method |
| KR101057455B1 (en) * | 2010-09-10 | 2011-08-17 | 한국기전금속(주) | The manufacturing method using metals on fusion for casting mould of different metal |
| CN107604236A (en) * | 2017-09-21 | 2018-01-19 | 苏州沙特卡铸造有限公司 | A kind of method for improving lathe casting hardness |
-
2019
- 2019-09-12 CN CN201910864032.9A patent/CN110508792A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522482A (en) * | 1978-08-07 | 1980-02-18 | Kawasaki Heavy Ind Ltd | Alloy melting method |
| SU994102A1 (en) * | 1980-12-05 | 1983-02-07 | Харьковский Ордена Ленина И Ордена Октябрьской Революции Моторостроительный Завод "Серп И Молот" | Casting cup for treating liquid metal by additives |
| JPS5832543A (en) * | 1981-08-21 | 1983-02-25 | Sumitomo Metal Ind Ltd | Manufacture and device for clad ingot |
| JPH11320074A (en) * | 1998-05-13 | 1999-11-24 | Isuzu Motors Ltd | Production of gradient casting having transition structure and its casting mold |
| JP2003191068A (en) * | 2001-12-25 | 2003-07-08 | Aisin Takaoka Ltd | Cast iron part and its producing method |
| KR101057455B1 (en) * | 2010-09-10 | 2011-08-17 | 한국기전금속(주) | The manufacturing method using metals on fusion for casting mould of different metal |
| CN107604236A (en) * | 2017-09-21 | 2018-01-19 | 苏州沙特卡铸造有限公司 | A kind of method for improving lathe casting hardness |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523194A (en) * | 2021-07-24 | 2021-10-22 | 共享装备股份有限公司 | Staggered pouring structure |
| CN113523194B (en) * | 2021-07-24 | 2022-09-06 | 共享装备股份有限公司 | Staggered pouring structure |
| CN115106501A (en) * | 2022-06-06 | 2022-09-27 | 芜湖泓鹄材料技术有限公司 | Casting process of full-mold casting machine tool body |
| CN115106501B (en) * | 2022-06-06 | 2023-05-26 | 芜湖泓鹄材料技术有限公司 | Full mold casting machine tool body casting process |
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Application publication date: 20191129 |
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