CN105290327A - Method for controlling wave pattern deformation of large complex integral casting cartridge receiver - Google Patents
Method for controlling wave pattern deformation of large complex integral casting cartridge receiver Download PDFInfo
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- CN105290327A CN105290327A CN201510762936.2A CN201510762936A CN105290327A CN 105290327 A CN105290327 A CN 105290327A CN 201510762936 A CN201510762936 A CN 201510762936A CN 105290327 A CN105290327 A CN 105290327A
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Abstract
The invention belongs to the field of precision casting and particularly relates to a method for controlling wave pattern deformation of a large complex integral casting cartridge receiver. According to the method, a correction die lower die and four locking stopping rods are assembled together to vertically lightly slowly place a large installing edge of a wave pattern downwards at the position of correction seam allowance of the correction die lower die, a correction die upper die is aligned with the four locking stopping rods to be installed downwards vertically, the four locking stopping rods are tightened and fixed through lock nuts, the correction assembly of the wave pattern is finished, the well corrected and assembled wave pattern is placed in an environment with a certain humidity and temperature for no less than 12 h, and then a correction die is dismantled to obtain the corrected wave pattern. According to the method, the size variance caused by casting deformation is effectively avoided, dimensional accuracy of castings is guaranteed, and the machining and assembling requirements are met.
Description
Technical field
The invention belongs to hot investment casting field, be specifically related to a kind of method controlling the distortion of large complicated block cast casing wax-pattern.
Background technology
In aero-engine, combustion engine and other product for civilian use field, the overall size of large complicated block cast casing part is generally Φ 822 × 328mm, and main body wall thickness is 5mm, and foundry goods exists the heat energy-saving positions such as many places boss, window.And formed by unitary mould compacting for the wax-pattern casting casing foundry goods, there is distortion in various degree in the free shrink after wax-pattern compacting in cooling procedure, particularly the ovality of upper and lower two mounting edges and axiality are difficult to meet design instructions for use, cause when machining and assembling and usually occur off-gage phenomenon, become a kind of technical bottleneck in this integral casing part development tackling key problem process owing to being out of shape the dimension overproof that causes.
Summary of the invention
For prior art Problems existing, the invention provides a kind of method controlling the distortion of large complicated block cast casing wax-pattern, object solves the size distortion caused in block cast casing part foundry technology process, improve the dimensional accuracy of block cast casing part, improve the size reliability of product in following process process, meet machining and matching requirements.
The technical scheme realizing the object of the invention is carried out according to following steps:
(1) first rectification mold counterdie and four locking stop rods are assembled together, after large complicated block cast casing wax-pattern opens mould from mould, dispose the foreign material of wax-pattern mounting edge circumferential surface, as overlap, burr, then the large mounting edge of wax-pattern is placed on downward vertically gently lentamente and corrects Mod correction seam position under mold, hand-held large mounting edge position circumferentially rotates wax-pattern gently, makes large mounting edge end face and correct mold counterdie to fit tightly;
(2) correction tire patrix is aimed at four locking stop rods to lay vertically downward, pressing corrects tire patrix gently, correction tire patrix inner surface and four locking stop rods are fitted tightly, then four locking stop rod locking nut screwings is fixed, complete the correction assembling of wax-pattern;
(3) wax-pattern that correction assembles being placed on environment temperature is 20 DEG C ~ 24 DEG C, and ambient humidity is in the environment of 50% ~ 70%, and wax-pattern is natural Slow cooling in correcting pattern, along with the free linear contraction of wax-pattern in cooling procedure, standing time >=12 hours;
(4) placement terminates rear dismounting correcting pattern, first unclamps and takes away locking nut, and then removed along locking stop rod vertically upward by correction tire patrix, the thick large part of hand-held wax-pattern takes out wax-pattern vertically upward, obtains the orthopedic wax-pattern completed.
Wherein, the diameter dimension of described rectification mold upper die and lower die working face is greater than its wax-pattern attachment face diameter size 1mm corresponding separately.
Compared with prior art, feature of the present invention and beneficial effect are:
There is a certain amount of distortion in foundry goods size mounting edge diametric(al), diameter dimension precision is ± 0.5mm, in order to meet machining and matching requirements, need to control single-casting dimensional accuracy, because the free shrink in cooling procedure after wax-pattern compacting exists contraction distortion in various degree, and affect by the asymmetry of structure, there is very big difference in the linear contraction of each position.The present invention carries out dimension correction by correcting mold to wax-pattern, meet the dimensional requirement of the upper and lower mounting edge ovality of wax-pattern, axiality, inside shrinkage factor according to wax material and the mounting edge up and down in conjunction with this wax part, the actual, measured dimension of wax-pattern, chooses suitable correcting pattern working surface diameter size.
The present invention efficiently solves the dimension overproof that casting deformation causes, and ensure that the dimensional accuracy of foundry goods, meets machining and matching requirements.And effective popularization is obtained on other similar piece number, respond well.Regenerate along with aero-engine is constantly updated, more block cast casing part will be had to need to adopt hot school type process to control casting dimension accuracy.Therefore the present invention will more and more extensively be employed.Predict by annual output 10, can the creation of value more than 2,000,000 yuan.
Accompanying drawing explanation
Fig. 1 is the large complicated block cast case structure schematic diagram in the embodiment of the present invention;
Wherein: (a): front view; (b) left view; (c) top view;
Fig. 2 is rectification positioner structure schematic diagram of the present invention;
Fig. 3 is the installation diagram correcting mold counterdie and locking stop rod in the present invention;
Fig. 4 is wax-pattern and rectification mold counterdie installation diagram in the present invention;
Wherein: 1: locking nut; 2: patrix; 3: locking stop rod; 4: wax-pattern; 5: counterdie.
Detailed description of the invention
As shown in Figure 1, overall size is Φ 822 × 328mm to large complicated block cast casing part structure in the present embodiment, and main body wall thickness is 5mm, and foundry goods exists the heat energy-saving positions such as many places boss, window, and the thicker large deformation of upper and lower mounting edge is wayward.
The upper and lower mould of correction tire in the present embodiment adopts wrought aluminium to make, and locking stop rod and nut adopt 45# steel.
Embodiment 1
The method of the control large complicated block cast casing wax-pattern distortion of the present embodiment is carried out according to following steps:
(1) first rectification mold counterdie 5 and four locking stop rods 3 are assembled together, as shown in Figure 3, after large complicated block cast casing wax-pattern 4 opens mould from mould, dispose the foreign material of wax-pattern 4 mounting edge circumferential surface, as overlap, burr, then the large mounting edge of wax-pattern 4 is placed on downward vertically gently lentamente rectification mold counterdie 5 and corrects seam position, hand-held large mounting edge position circumferentially rotates wax-pattern 4 gently, makes large mounting edge end face and correct mold counterdie 5 to fit tightly;
(2) correction tire patrix 2 is aimed at four locking stop rods 3 to lay vertically downward, pressing corrects tire patrix 2 gently, correction tire patrix 2 inner surface and four locking stop rods 3 are fitted tightly, then four locking stop rod 3 locking nuts 1 is tightened fixing, complete the correction assembling of wax-pattern 4;
(3) wax-pattern 4 that correction assembles being placed on environment temperature is 20 DEG C ~ 24 DEG C, ambient humidity is in the environment of 50% ~ 70%, wax-pattern 4 is natural Slow cooling in correcting pattern, along with the free linear contraction of wax-pattern 4 in cooling procedure, standing time >=12 hours;
(4) placement terminates rear dismounting correcting pattern, first unclamps and takes away locking nut 1, and then removed along locking stop rod 3 vertically upward by correction tire patrix 2, the thick large part of hand-held wax-pattern 4 takes out wax-pattern 4 vertically upward, obtains the orthopedic wax-pattern 4 completed.
Wherein, the diameter dimension of described rectification mold upper die and lower die working face is greater than its wax-pattern attachment face diameter size 1mm corresponding separately.
Claims (2)
1. control a method for large complicated block cast casing wax-pattern distortion, it is characterized in that carrying out according to following steps:
(1) first rectification mold counterdie and four locking stop rods are assembled together, after large complicated block cast casing wax-pattern opens mould from mould, dispose the foreign material of wax-pattern mounting edge circumferential surface, as overlap, burr, then the large mounting edge of wax-pattern is placed on downward vertically gently lentamente and corrects Mod correction seam position under mold, hand-held large mounting edge position circumferentially rotates wax-pattern gently, makes large mounting edge end face and correct mold counterdie to fit tightly;
(2) correction tire patrix is aimed at four locking stop rods to lay vertically downward, pressing corrects tire patrix gently, correction tire patrix inner surface and four locking stop rods are fitted tightly, then four locking stop rod locking nut screwings is fixed, complete the correction assembling of wax-pattern;
(3) wax-pattern that correction assembles being placed on environment temperature is 20 DEG C ~ 24 DEG C, and ambient humidity is in the environment of 50% ~ 70%, and wax-pattern is natural Slow cooling in correcting pattern, along with the free linear contraction of wax-pattern in cooling procedure, standing time >=12 hours;
(4) placement terminates rear dismounting correcting pattern, first unclamps and takes away locking nut, and then removed along locking stop rod vertically upward by correction tire patrix, the thick large part of hand-held wax-pattern takes out wax-pattern vertically upward, obtains the orthopedic wax-pattern completed.
2. a kind of method controlling the distortion of large complicated block cast casing wax-pattern according to claim 1, is characterized in that the diameter dimension of described rectification mold upper die and lower die working face is greater than its wax-pattern attachment face diameter size 1mm corresponding separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510762936.2A CN105290327B (en) | 2015-11-11 | 2015-11-11 | A kind of method for controlling large complicated block cast casing wax-pattern deformation |
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| CN201510762936.2A CN105290327B (en) | 2015-11-11 | 2015-11-11 | A kind of method for controlling large complicated block cast casing wax-pattern deformation |
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| CN105290327A true CN105290327A (en) | 2016-02-03 |
| CN105290327B CN105290327B (en) | 2017-06-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377872A (en) * | 2017-06-28 | 2017-11-24 | 株洲中航动力精密铸造有限公司 | Casing wax mould profiling die and die mould method |
| CN107790623A (en) * | 2017-10-27 | 2018-03-13 | 中国航发南方工业有限公司 | A kind of combined method of hot investment casting assembling wax pattern |
| CN109332589A (en) * | 2018-11-14 | 2019-02-15 | 中国船舶重工集团公司第十二研究所 | A kind of essence casting formwork preparation method of large-scale complex thin-wall casing |
| CN110653338A (en) * | 2019-10-21 | 2020-01-07 | 贵州安吉航空精密铸造有限责任公司 | Wax mould part shape correcting tool and wax mould part shape correcting method |
| CN111468676A (en) * | 2020-05-19 | 2020-07-31 | 贵州安吉航空精密铸造有限责任公司 | Preparation method of integral wax mold of large-scale closed annular casing casting |
| CN112371776A (en) * | 2020-10-22 | 2021-02-19 | 中国航发贵州黎阳航空动力有限公司 | Vacuum thermal sizing die and method for engine support case |
| CN113857430A (en) * | 2021-08-23 | 2021-12-31 | 中国科学院金属研究所 | Blade deformation control method and application |
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| CN102091757B (en) * | 2010-12-30 | 2013-01-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Integral precision casting method for large thin-wall casing part |
| CN202701286U (en) * | 2012-05-09 | 2013-01-30 | 中国南方航空工业(集团)有限公司 | Size control device |
| CN103273003B (en) * | 2013-05-16 | 2017-10-27 | 咸阳勃力模具制造有限公司 | Wax-pattern correcting tool |
| CN104551522A (en) * | 2014-10-24 | 2015-04-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Thermal correction method for large-scale integrally-cast cartridge receiver of aircraft engine |
| CN104525853B (en) * | 2014-11-11 | 2016-08-24 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of method eliminating the deformation of ultra-thin elongated moving turbine blade wax-pattern |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377872A (en) * | 2017-06-28 | 2017-11-24 | 株洲中航动力精密铸造有限公司 | Casing wax mould profiling die and die mould method |
| CN107377872B (en) * | 2017-06-28 | 2020-07-24 | 中国航发南方工业有限公司 | Cartridge case wax mould pressing mold and pressing method |
| CN107790623A (en) * | 2017-10-27 | 2018-03-13 | 中国航发南方工业有限公司 | A kind of combined method of hot investment casting assembling wax pattern |
| CN107790623B (en) * | 2017-10-27 | 2019-03-22 | 中国航发南方工业有限公司 | A kind of combined method of hot investment casting assembling wax pattern |
| CN109332589A (en) * | 2018-11-14 | 2019-02-15 | 中国船舶重工集团公司第十二研究所 | A kind of essence casting formwork preparation method of large-scale complex thin-wall casing |
| CN110653338A (en) * | 2019-10-21 | 2020-01-07 | 贵州安吉航空精密铸造有限责任公司 | Wax mould part shape correcting tool and wax mould part shape correcting method |
| CN110653338B (en) * | 2019-10-21 | 2021-03-16 | 贵州安吉航空精密铸造有限责任公司 | Wax mould part shape correcting tool and wax mould part shape correcting method |
| CN111468676A (en) * | 2020-05-19 | 2020-07-31 | 贵州安吉航空精密铸造有限责任公司 | Preparation method of integral wax mold of large-scale closed annular casing casting |
| CN112371776A (en) * | 2020-10-22 | 2021-02-19 | 中国航发贵州黎阳航空动力有限公司 | Vacuum thermal sizing die and method for engine support case |
| CN113857430A (en) * | 2021-08-23 | 2021-12-31 | 中国科学院金属研究所 | Blade deformation control method and application |
| CN113857430B (en) * | 2021-08-23 | 2023-10-13 | 中国科学院金属研究所 | Blade deformation control method and application |
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| CN105290327B (en) | 2017-06-20 |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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