CN104785720A - Casting die and casting process of die-casting machine adjusting nut - Google Patents
Casting die and casting process of die-casting machine adjusting nut Download PDFInfo
- Publication number
- CN104785720A CN104785720A CN201510227842.5A CN201510227842A CN104785720A CN 104785720 A CN104785720 A CN 104785720A CN 201510227842 A CN201510227842 A CN 201510227842A CN 104785720 A CN104785720 A CN 104785720A
- Authority
- CN
- China
- Prior art keywords
- die
- casting
- adjusting nut
- ingate
- core
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
-
- 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
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
Landscapes
- 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 casting die and a casting process of a die-casting machine adjusting nut. The casting die comprises a die body, wherein the die body comprises an upper die and a lower die; a cavity which corresponds to the adjusting nut and is used for axially parting is formed between the upper die and the lower die; a gate sprue is formed in the upper die; an ingate which is connected to the bottom of the cavity is formed in the lower die; the gate sprue is connected with the ingate through a cross gate; a sand core is axially arranged in the cavity; an iron core is wrapped by the sand core; a bottom pouring process is formed by a sand core adding method; a chilling block is added to an ingate region, so that the temperature balance is ensured; and in order to relatively well disperse an overheated region, a sand-coated iron core process is utilized to cool, so as to ensure the compactness of an inner thread region. After the improved process is adopted, the defects of shrinkage blowholes are basically removed by sampling and dissecting for a plurality of times; the bad defect rate after processing is smaller than 1%; the finished product ratio is greatly improved; and obvious economic benefits are obtained.
Description
Technical field
The present invention relates to a kind of casting mould and casting technique of die casting machine adjusting nut.
Background technology
Adjusting nut (as Fig. 1) is die casting machine heavy duty parts, full processing car internal screw thread (4mm), foundry goods needs nitrogen treatment, requires that nitrogen treatment rear surface hardness reaches 38-45HRC, foundry goods body consistency requirements is high especially, requires without casting flaws such as shrinkage porosite pin hole soften; Material is QT500-7, the complicated became uneven of casting structure, thermal center is concentrated, rear flange is processed and shrinkage porosite (as Fig. 2) in various degree appears in cylindrical shell junction root in production, foundry goods is caused to scrap, process yield only 69%, and many moneys type all has similar mass defect, does not all reach to ideal effect through repeatedly improving.
Fig. 3, Fig. 4 are the casting mould schematic diagrames of traditional adjusting nut, and because nut structure somatotype section is in abundant region, ingate also designs at this region formation thermal center too concentrated, can not get consecutive solidification, form liquid shrinkage cavity when iron liquid solidifies.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of casting mould and casting technique of die casting machine adjusting nut.
The technical solution adopted for the present invention to solve the technical problems is:
The casting mould of die casting machine adjusting nut, comprise die ontology, described die ontology comprises upper die and lower die, the die cavity of corresponding with adjusting nut and axial parting is provided with between described upper die and lower die, described patrix is provided with sprue, described counterdie is provided with the ingate being connected to cavity bottom, described sprue is connected with ingate by a cross gate, in die cavity, be axially provided with core, in this core, parcel is provided with an iron core.
In the bottom of die cavity and ingate junction, chill is set.
Described die ontology is provided with four die cavities, and these four die cavities are corner distribution, and described sprue is arranged on four die cavity center positions.
Described cross gate is arranged on the lower surface of patrix.
The casting technique of die casting machine adjusting nut, comprises the following steps:
Step one, make above-mentioned casting mould, in moulding box, produce upper die and lower die, sprue, cross gate, ingate by molding sand, and make core, iron core is wrapped in core, place chill in the bottom of die cavity and ingate junction;
Step 2, molten iron, dissolve ferriferous raw material in a furnace;
Step 3, nodularization, pour into molten iron in casting ladle, and molten iron temperature adds nodulizer 1430 ± 20 DEG C time, and this nodulizer addition is the 1.23%-1.27% of molten steel quality;
Step 4, molten steel preparation, add inovulant in molten iron, and the component of inovulant is the 0.6%-0.8% of molten steel quality;
Step 5, cast, vertically-arranged die ontology, pours molten iron into from sprue, pouring temperature 1320 ± 20 DEG C, 10 seconds durations of pouring.
Described molding sand proportion is: fresh sand 15%, resin 1.2%, curing agent 50%.
Described curing agent is resin.
Described nodulizer is rare earth magnesium nodularizer.
The invention has the beneficial effects as follows: the casting mould of die casting machine adjusting nut and casting technique, comprise die ontology, described die ontology comprises upper die and lower die, the die cavity of corresponding with adjusting nut and axial parting is provided with between described upper die and lower die, described patrix is provided with sprue, described counterdie is provided with the ingate being connected to cavity bottom, described sprue is connected with ingate by a cross gate, axially core is provided with in die cavity, in this core, parcel is provided with an iron core, rising pouring technique is formed to place core method, and place chill in ingate region, ensure equalized temperature, for disperseing superheat region preferably, utilization is covered placer iron core technique and is cooled, guarantee the compactness in internal screw thread region, after adopting the technique after improving, dissect through multiple sampling and essentially eliminate sbrinkage blowhole defect, bad ratio of defects < 1% after processing, substantially increase yield rate, obtain obvious economic benefit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the schematic cross-section of backstay;
Fig. 2 is the sbrinkage blowhole schematic diagram of backstay;
Fig. 3 is one of mould schematic diagram of traditional backstay;
Fig. 4 is the mould schematic diagram two of traditional backstay;
Fig. 5 is the schematic cross-section of die cavity of the present invention;
Fig. 6 is the schematic cross-section of patrix of the present invention;
Fig. 7 is the schematic cross-section of counterdie of the present invention.
Detailed description of the invention
With reference to Fig. 5 to Fig. 7, Fig. 5 to Fig. 7 is the structural representation of the present invention's specific embodiment, as shown in the figure, the casting mould of die casting machine adjusting nut, comprise die ontology, described die ontology comprises patrix 1 and counterdie 2, the die cavity 3 of corresponding with adjusting nut and axial parting is provided with between described patrix 1 and counterdie 2, described patrix 1 is provided with sprue 51, described counterdie 2 is provided with the ingate 53 be connected to bottom die cavity 3, described sprue 51 is connected with ingate 53 by a cross gate 52, axially core 31 is provided with in die cavity 3, in this core 31, parcel is provided with an iron core 32.
As preferably, at die cavity 3 and the bottom of ingate 53 junction, chill 54 is set, to balance the temperature between die cavity 3 and ingate 53.
As preferably, in the present embodiment, described die ontology is provided with four die cavities 3, and the distribution in corner of these four die cavities 3, described sprue 51 is arranged on four die cavity 3 center positions.
As preferably, as shown in the figure, described cross gate 52 is arranged on the lower surface of patrix 1.
The casting technique of die casting machine adjusting nut, comprises the following steps:
Arbitrary described casting mould in step one, making Claims 1-4, patrix 1, counterdie 2, sprue 51, cross gate 52, ingate 53 is produced by molding sand in moulding box, and make core 31, iron core 32 is wrapped in core 31, places chill 54 at die cavity 3 and the bottom of ingate 53 junction;
Step 2, molten iron, dissolve ferriferous raw material in a furnace;
Step 3, nodularization, pour into molten iron in casting ladle, and molten iron temperature adds nodulizer 1430 ± 20 DEG C time, and this nodulizer addition is the 1.23%-1.27% of molten steel quality, and described nodulizer is preferably rare earth magnesium nodularizer;
Step 4, molten steel preparation, add inovulant in molten iron, and the component of inovulant is the 0.6%-0.8% of molten steel quality;
Step 5, cast, vertically-arranged die ontology, pours molten iron into from sprue, pouring temperature 1320 ± 20 DEG C, 10 seconds durations of pouring.
As preferably, described molding sand proportion is: fresh sand 15%, resin 1.2%, curing agent 50%, and described curing agent is resin.
The present invention forms rising pouring technique to place core method, and place chill in ingate region, ensure equalized temperature, for disperseing superheat region preferably, the technique that iron core is set in core is utilized to cool, guarantee the compactness in internal screw thread region, and control pouring temperature and the duration of pouring, after adopting the technique after improving, dissect through multiple sampling and essentially eliminate sbrinkage blowhole defect, bad ratio of defects < 1% after processing, substantially increases yield rate, obtains obvious economic benefit.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (8)
1. the casting mould of die casting machine adjusting nut, comprise die ontology, it is characterized in that: described die ontology comprises patrix (1) and counterdie (2), the die cavity (3) of corresponding with adjusting nut and axial parting is provided with between described patrix (1) and counterdie (2), described patrix (1) is provided with sprue (51), described counterdie (2) is provided with the ingate (53) being connected to die cavity (3) bottom, described sprue (51) is connected with ingate (53) by a cross gate (52), axially core (31) is provided with in die cavity (3), in this core (31), parcel is provided with an iron core (32).
2. the casting mould of die casting machine adjusting nut according to claim 1, is characterized in that: arrange chill (54) at die cavity (3) and the bottom of ingate (53) junction.
3. the casting mould of die casting machine adjusting nut according to claim 1, is characterized in that:
Described die ontology is provided with four die cavities (3), and these four die cavities (3) distribute in corner,
Described sprue (51) is arranged on four die cavity (3) center positions.
4. the casting mould of die casting machine adjusting nut according to claim 1, is characterized in that:
Described cross gate (52) is arranged on the lower surface of patrix (1).
5. the casting technique of die casting machine adjusting nut, is characterized in that: comprise the following steps:
Arbitrary described casting mould in step one, making Claims 1-4, patrix (1), counterdie (2), sprue (51), cross gate (52), ingate (53) is produced by molding sand in moulding box, and make core (31), iron core (32) is wrapped in core (31), places chill (54) at die cavity (3) and the bottom of ingate (53) junction;
Step 2, molten iron, dissolve ferriferous raw material in a furnace;
Step 3, nodularization, pour into molten iron in casting ladle, and molten iron temperature adds nodulizer 1430 ± 20 DEG C time, and this nodulizer addition is the 1.23%-1.27% of molten steel quality;
Step 4, molten steel preparation, add inovulant in molten iron, and the component of inovulant is the 0.6%-0.8% of molten steel quality;
Step 5, cast, vertically-arranged die ontology, pours molten iron into from sprue, pouring temperature 1320 ± 20 DEG C, 10 seconds durations of pouring.
6. the casting technique of die casting machine adjusting nut according to claim 5, is characterized in that:
Described molding sand proportion is: fresh sand 15%, resin 1.2%, curing agent 50%.
7. the casting technique of die casting machine adjusting nut according to claim 6, is characterized in that:
Described curing agent is resin.
8. the casting technique of die casting machine adjusting nut according to claim 5, is characterized in that:
Described nodulizer is rare earth magnesium nodularizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227842.5A CN104785720A (en) | 2015-05-06 | 2015-05-06 | Casting die and casting process of die-casting machine adjusting nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227842.5A CN104785720A (en) | 2015-05-06 | 2015-05-06 | Casting die and casting process of die-casting machine adjusting nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785720A true CN104785720A (en) | 2015-07-22 |
Family
ID=53551157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510227842.5A Pending CN104785720A (en) | 2015-05-06 | 2015-05-06 | Casting die and casting process of die-casting machine adjusting nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104785720A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040995A (en) * | 2016-08-04 | 2016-10-26 | 苏州利达铸造有限公司 | Automobile vibrator mold |
| CN107931574A (en) * | 2017-11-24 | 2018-04-20 | 盐城楷翔钻采配件有限公司 | A kind of manufacturing process of nut |
| CN108526439A (en) * | 2018-06-25 | 2018-09-14 | 溧阳市联华机械制造有限公司 | A kind of shell structure that suction pouring ingate quickly solidifies |
| CN109570438A (en) * | 2019-01-30 | 2019-04-05 | 浙江春晖复合材料有限公司 | A kind of mold of convenient in carrying |
| CN109732041A (en) * | 2019-01-30 | 2019-05-10 | 浙江春晖复合材料有限公司 | A kind of novel die |
| CN110216244A (en) * | 2019-04-20 | 2019-09-10 | 福建大通互惠精密铸造有限公司 | A kind of the casting tool and its manufacturing process of check valve body steel-casting |
| CN110293215A (en) * | 2018-03-21 | 2019-10-01 | 溧阳市联华机械制造有限公司 | The control structure of suction pouring casting mold ingate setting time |
| CN113714468A (en) * | 2021-09-03 | 2021-11-30 | 吴三燕 | Nut machining process |
| CN114260426A (en) * | 2021-12-24 | 2022-04-01 | 阜新力达钢铁铸造有限公司 | Edge-opening nut die, special sand core for edge-opening nut and casting method of special sand core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289969B1 (en) * | 1998-04-08 | 2001-09-18 | Foseco International Limited | Metal casting |
| CN101643877A (en) * | 2008-09-27 | 2010-02-10 | 莱州新忠耀机械有限公司 | High-speed train set with power car pulling motor shell new material and preparation method thereof |
| CN101748325A (en) * | 2009-12-30 | 2010-06-23 | 山东省汇丰机械集团总公司章丘市铸造厂 | High-strength wear-resisting ductile iron coiling block and manufacturing method thereof |
| CN102039379A (en) * | 2009-10-20 | 2011-05-04 | 中国北车集团大同电力机车有限责任公司 | Towing pin casting model box and towing pin casting process |
| CN103111586A (en) * | 2012-12-14 | 2013-05-22 | 镇江汇通金属成型有限公司 | Large-size aluminum bronze sleeve pouring die |
| CN204770478U (en) * | 2015-05-06 | 2015-11-18 | 广东恒成科技股份有限公司 | Die casting machine adjusting nut's casting mould |
-
2015
- 2015-05-06 CN CN201510227842.5A patent/CN104785720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289969B1 (en) * | 1998-04-08 | 2001-09-18 | Foseco International Limited | Metal casting |
| CN101643877A (en) * | 2008-09-27 | 2010-02-10 | 莱州新忠耀机械有限公司 | High-speed train set with power car pulling motor shell new material and preparation method thereof |
| CN102039379A (en) * | 2009-10-20 | 2011-05-04 | 中国北车集团大同电力机车有限责任公司 | Towing pin casting model box and towing pin casting process |
| CN101748325A (en) * | 2009-12-30 | 2010-06-23 | 山东省汇丰机械集团总公司章丘市铸造厂 | High-strength wear-resisting ductile iron coiling block and manufacturing method thereof |
| CN103111586A (en) * | 2012-12-14 | 2013-05-22 | 镇江汇通金属成型有限公司 | Large-size aluminum bronze sleeve pouring die |
| CN204770478U (en) * | 2015-05-06 | 2015-11-18 | 广东恒成科技股份有限公司 | Die casting machine adjusting nut's casting mould |
Non-Patent Citations (1)
| Title |
|---|
| 陆文龙: "《铸造工技师鉴定培训教材》", 30 September 2014 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040995A (en) * | 2016-08-04 | 2016-10-26 | 苏州利达铸造有限公司 | Automobile vibrator mold |
| CN107931574A (en) * | 2017-11-24 | 2018-04-20 | 盐城楷翔钻采配件有限公司 | A kind of manufacturing process of nut |
| CN110293215A (en) * | 2018-03-21 | 2019-10-01 | 溧阳市联华机械制造有限公司 | The control structure of suction pouring casting mold ingate setting time |
| CN108526439A (en) * | 2018-06-25 | 2018-09-14 | 溧阳市联华机械制造有限公司 | A kind of shell structure that suction pouring ingate quickly solidifies |
| CN109570438A (en) * | 2019-01-30 | 2019-04-05 | 浙江春晖复合材料有限公司 | A kind of mold of convenient in carrying |
| CN109732041A (en) * | 2019-01-30 | 2019-05-10 | 浙江春晖复合材料有限公司 | A kind of novel die |
| CN109732041B (en) * | 2019-01-30 | 2020-12-04 | 浙江春晖复合材料有限公司 | Novel mould |
| CN110216244A (en) * | 2019-04-20 | 2019-09-10 | 福建大通互惠精密铸造有限公司 | A kind of the casting tool and its manufacturing process of check valve body steel-casting |
| CN110216244B (en) * | 2019-04-20 | 2024-05-31 | 福建大通互惠精密铸造有限公司 | Casting tool for check valve body steel casting and manufacturing process thereof |
| CN113714468A (en) * | 2021-09-03 | 2021-11-30 | 吴三燕 | Nut machining process |
| CN113714468B (en) * | 2021-09-03 | 2023-10-24 | 重庆嘉和标准件有限公司 | Nut processing technology |
| CN114260426A (en) * | 2021-12-24 | 2022-04-01 | 阜新力达钢铁铸造有限公司 | Edge-opening nut die, special sand core for edge-opening nut and casting method of special sand core |
| CN114260426B (en) * | 2021-12-24 | 2023-11-14 | 阜新力达钢铁铸造有限公司 | Edge-opening nut mold, special sand core for edge-opening nut and casting method of special sand core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104785720A (en) | Casting die and casting process of die-casting machine adjusting nut | |
| CN104226914A (en) | Foundry technology of flange | |
| CN104128564A (en) | Casting process of sand-lined metal mold cast nodular iron hinge lug | |
| CN204035526U (en) | Casting mould | |
| CN204892871U (en) | A mould for casting parts | |
| CN204075073U (en) | Investment pattern precision casting de-waxing, blast, cooling device | |
| CN105251954B (en) | A kind of ingot steel casting mould and pouring procedure | |
| CN107042287A (en) | A kind of casting method of steam turbine high pressure main air valve casting | |
| CN104174820A (en) | Casting process of two-stage planet carrier of climbing machine for ocean platform | |
| CN205056946U (en) | Casting mold | |
| CN204770478U (en) | Die casting machine adjusting nut's casting mould | |
| CN106623810A (en) | Casting method for motorcycle aluminum alloy wheel with hollow hub | |
| CN104550705A (en) | Casting method of large stamping air cylinder casting | |
| CN105382240A (en) | Precision casting process for thin-wall aluminum alloy casting | |
| CN105234351A (en) | Pump body casting technology | |
| CN104827015A (en) | Superhigh-temperature demolding and hot transporting process of slab ingots | |
| CN201807706U (en) | Dual-section type crystallizer for hollow cast ingot | |
| CN104550762A (en) | Casting mold for female and male rotors and pouring system of casting mold | |
| CN105499493A (en) | Casting technology for preventing shrinkage and porosity | |
| CN104607601A (en) | Pump body casting process | |
| CN204711116U (en) | The casting mould of negative and positive rotor and running gate system thereof | |
| CN104741563A (en) | Centrifugal casting process of high-performance engine alloy cylinder sleeve | |
| CN107971459A (en) | A kind of ingate and running gate system for being used to prepare central pulley structural member | |
| CN203679178U (en) | Metal type gravity casting mould with fusion-splicing casting mechanism | |
| CN202762962U (en) | Casting mould |
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: 20150722 |