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CN106898853A - A kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method - Google Patents

A kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method Download PDF

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Publication number
CN106898853A
CN106898853A CN201510958395.0A CN201510958395A CN106898853A CN 106898853 A CN106898853 A CN 106898853A CN 201510958395 A CN201510958395 A CN 201510958395A CN 106898853 A CN106898853 A CN 106898853A
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China
Prior art keywords
casting
aluminium alloy
semi
solid
combiner
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Pending
Application number
CN201510958395.0A
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Chinese (zh)
Inventor
景艳红
和优锋
李大全
张帆
朱强
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GRIMN Engineering Technology Research Institute Co Ltd
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Beijing General Research Institute for Non Ferrous Metals
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Priority to CN201510958395.0A priority Critical patent/CN106898853A/en
Publication of CN106898853A publication Critical patent/CN106898853A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Forging (AREA)

Abstract

The present invention relates to a kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method, belong to metal working technical area.The present invention prepares aluminium alloy combiner using the method that thixotroping casting forming or rheo-diecasting shape, including prepares semi solid slurry, casting forming and post-processing step.The present invention uses Semi-solid Thixo-Casting technique productions tracking exchage aluminium alloy combiner cavity, and the forming technology is near-net-shape, and low cost, production efficiency is high, high yield rate;The high-quality Al alloy combiner cavity lightweight of preparation, even tissue, casting flaw are few, and mechanical property is good.

Description

A kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method
Technical field
The present invention relates to a kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method, can be obtained using the method High-quality aluminium alloy combiner cavity is obtained, belongs to metal working technical area.
Background technology
Combiner is applied to mobile communication engineering technical field, is mainly used as the combining of multisystem signal to a set of Indoor distributed system;Its species is divided into dual-frequency channel merger, tri-frequency combiner, multiplefrequency mixer etc..Combiner Transmitting terminal is generally used for, its effect is to be combined into the radiofrequency signal that two-way or multichannel send from different transmitters The radio-frequency devices of antenna transmitting are sent to all the way, while influencing each other between avoiding each port signal;Typically There are two or more input ports, only one of which output port.Interport isolation is an important finger Mark, for describing the ability that two paths of signals is independent of each other, so performance, the size essence for combiner cavity Degree, metal streamline distribution suffer from requirement higher.
Combiner cavity in the market is mainly aluminium alloy, and forming mode is liquid die casting, because Its complex-shaped, wall thickness is relatively thin, cause with conventional liquid casting forming mode exist fill bad type, shrinkage cavity and The casting flaws such as stomata, are that the post processings such as follow-up machining, anodic oxidation increased very big difficulty, make it Performance can not very well meet use requirement, and yield rate is low.In order to realize combiner product high performance and Cost degradation, develop advanced combiner cavity forming technique has for the development of China's Mobile Communication Industry Important realistic meaning.
The content of the invention
The purpose of the present invention is the defect for overcoming above-mentioned prior art, there is provided a kind of high-quality Al alloy combiner Semi-solid Thixo-Casting technique.The forming technology is prepared by semi solid slurry and casting forming prepares high-quality Aluminium alloy combiner cavity, its lightweight, even tissue, casting flaw is few, and favorable working performance contains master Alloying element silicon, copper, magnesium, zinc, each element content is:Silicon 0~20%, copper 0~8%, magnesium 0~6%, zinc 0~12%.
To achieve these goals, the technical solution adopted by the present invention is:
A kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method, using thixotroping casting forming or rheology pressure Cast shape method prepare high-quality Al alloy combiner, including prepare semi solid slurry, casting forming and after Process step.
The method of described thixotroping casting forming is that aluminum alloy blank is heated into solid liquid phase temperature range, is obtained Semi solid slurry, then casting forming.
The method of described rheo-diecasting shaping is to melt raw material of aluminum alloy, carries out cleaning molten treatment, Semi solid slurry is obtained by dendrite fragmentation and control solidification technology, then casting forming.
Described post processing is the slag trap and overlap for removing die-casting blank, cuts off running channel.
In above two method, the solid concentration of described semi solid slurry is 10~70wt%.
The press-in speed of described casting forming is 0.1~4m/s, and pressure pressure is 30~150Mpa, during pressurize Between be 5~60s.
Semi-solid Thixo-Casting of the invention can be divided into thixotroping casting forming and rheo-diecasting shaping, and both are not Same is in the preparation of semi solid slurry.
The raw material of aluminum alloy that the present invention is selected contains main alloying element silicon, copper, magnesium and/or zinc, and aluminium alloy is former The mass percent of material is constituted:Silicon 0~20%, copper 0~8%, magnesium 0~6%, zinc 0~12% is balance of Aluminium.
Beneficial effects of the present invention:
(1) present invention is using Semi-solid Thixo-Casting technique productions GSM aluminium alloy combiner chamber Body, instead of the combiner cavity of traditional casting forming, good product quality, even tissue, casting flaw are few.
(2) the most crystallization heat of semi solid slurry has discharged before die casting of the present invention, so as to extend mould use Life-span, and the casting forming time is reduced, substantially increase production efficiency.
(3) Semi-solid Thixo-Casting technique of the present invention is near-net-shape, with little need for carrying out postorder machining, The utilization rate of material is high, reduces production cost.
Brief description of the drawings
Fig. 1 is the photomacrograph of high-quality Al alloy combiner cavity prepared by embodiment 1.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention will be further described, but it is not intended that to this hair The limitation of bright protection domain.Any one skilled in the art is according to the invention described above content to the present invention Some the nonessential modifications and adaptations done, should all be included within the scope of the present invention.
Embodiment 1:High-quality Al alloy combiner cavity is prepared using thixotroping casting forming method
High-quality combiner cavity is prepared using industrial A357 aluminum alloy materials, specific implementation step is as follows:
(1) prepared by semi solid slurry:Semi solid zone is heated to after the bar-shaped blank of aluminium alloy is cut, Semi solid slurry is obtained, solid concentration is 50wt%;
(2) casting forming:The semi solid slurry that will be heated is put into rapidly charging barrel of die casting machine, is rushed by die casting machine Head promotes rapid press-in die die cavity, and using step pressurized filling, press-in speed is 2m/s, and press pressure 100Mpa, pickup is molded after pressurize 30s, obtains die-casting blank.
(3) post-process:Remove the slag trap and overlap of die-casting blank, cut off running channel, obtain the conjunction of high intensity aluminium Golden knuckle.
Fig. 1 is the photomacrograph of high-quality Al alloy combiner cavity manufactured in the present embodiment, as seen from the figure, The high strength alumin ium alloy combiner cavity complete appearance prepared using thixotroping casting forming method, is lacked without any casting Fall into.
Embodiment 2:High-quality Al alloy combiner is prepared using rheo-diecasting manufacturing process
High-quality combiner cavity is prepared using industrial 319S aluminum alloy materials, specific implementation step is as follows:
(1) prepared by semi solid slurry:Raw material of aluminum alloy is melted, cleaning molten treatment is carried out, by branch Crystalline substance is broken and control solidification technology obtains semi solid slurry, and solid concentration is 40wt%;
(2) casting forming:The semi solid slurry that will be heated is put into rapidly charging barrel of die casting machine, is rushed by die casting machine Head promotes rapid press-in die die cavity, and using step pressurized filling, press-in speed is 0.5m/s, pressure pressure Power 80Mpa, pickup is molded after pressurize 40s, obtains die-casting blank.
(3) post-process:Remove the slag trap and overlap of die-casting blank, cut off running channel, obtain the conjunction of high intensity aluminium Golden knuckle.
The aluminium alloy combiner cavity complete appearance prepared using rheo-diecasting manufacturing process, is lacked without any casting Fall into.
The bar-shaped blank heating of aluminium alloy to semisolid is obtained semi solid slurry by the present invention, or aluminium alloy is former Melt material, carries out cleaning molten treatment, and semi solid slurry is obtained by dendrite fragmentation and control solidification technology; Then using die casting machine by semi solid slurry press-in die die cavity, pressurize allows it to solidify under high pressure, and die sinking takes Part;Finally carry out post-processing and obtain high-quality Al alloy combiner finished product.The present invention using semisolid pressure casting into Shape technique productions tracking exchage aluminium alloy combiner cavity, the forming technology be near-net-shape, low cost, Production efficiency is high, high yield rate;The high-quality Al alloy combiner cavity lightweight of preparation, even tissue, Casting flaw is few, and mechanical property is good.

Claims (6)

1. a kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method, it is characterised in that:Using thixotroping pressure The method for casting shape or rheo-diecasting shaping prepares aluminium alloy combiner, including prepares semi solid slurry, die casting Shaping and post-processing step.
2. aluminium alloy combiner cavity Semi-solid Thixo-Casting method according to claim 1, its feature exists In:The method of described thixotroping casting forming is that aluminum alloy blank is heated into solid liquid phase temperature range, is obtained Semi solid slurry, then casting forming.
3. aluminium alloy combiner cavity Semi-solid Thixo-Casting method according to claim 1, its feature It is:The method of described rheo-diecasting shaping is to melt raw material of aluminum alloy, carries out cleaning molten treatment, Semi solid slurry is obtained by dendrite fragmentation and control solidification technology, then casting forming.
4. the aluminium alloy combiner cavity Semi-solid Thixo-Casting method according to Claims 2 or 3, its It is characterised by:The solid concentration of described semi solid slurry is 10~70wt%.
5. the aluminium alloy combiner cavity Semi-solid Thixo-Casting method according to Claims 2 or 3, its It is characterised by:The press-in speed of described casting forming is 0.1~4m/s, and pressure pressure is 30~150Mpa, is protected The pressure time is 5~60s.
6. aluminium alloy combiner cavity Semi-solid Thixo-Casting method according to claim 2, its feature It is:The mass percent of described aluminium alloy is constituted:Silicon 0~20%, copper 0~8%, magnesium 0~6%, zinc 0~12%, balance of aluminium.
CN201510958395.0A 2015-12-18 2015-12-18 A kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method Pending CN106898853A (en)

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CN201510958395.0A CN106898853A (en) 2015-12-18 2015-12-18 A kind of aluminium alloy combiner cavity Semi-solid Thixo-Casting method

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107511467A (en) * 2017-08-30 2017-12-26 芜湖舜富精密压铸科技有限公司 A kind of pressure casting method of the aluminium alloy of semisolid pressure casting
CN109732052A (en) * 2018-12-14 2019-05-10 珠海市润星泰电器有限公司 A kind of pressure casting method filtering cavity

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101166841A (en) * 2004-03-15 2008-04-23 Spx公司 Squeeze and semi-solid metal (SSM) casting of aluminum-copper (206) alloy
CN101537480A (en) * 2009-05-04 2009-09-23 李扬德 Semi-solid forming die-casting process for aluminum-magnesium alloy pot
CN203312433U (en) * 2013-06-20 2013-11-27 南京华脉科技有限公司 Multipurpose mode combiner
CN104525829A (en) * 2014-12-26 2015-04-22 西安交通大学 Radial forging strain-induced semi-solid state process for manufacturing aluminum alloy crankshaft of air condition compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101166841A (en) * 2004-03-15 2008-04-23 Spx公司 Squeeze and semi-solid metal (SSM) casting of aluminum-copper (206) alloy
CN101537480A (en) * 2009-05-04 2009-09-23 李扬德 Semi-solid forming die-casting process for aluminum-magnesium alloy pot
CN203312433U (en) * 2013-06-20 2013-11-27 南京华脉科技有限公司 Multipurpose mode combiner
CN104525829A (en) * 2014-12-26 2015-04-22 西安交通大学 Radial forging strain-induced semi-solid state process for manufacturing aluminum alloy crankshaft of air condition compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107511467A (en) * 2017-08-30 2017-12-26 芜湖舜富精密压铸科技有限公司 A kind of pressure casting method of the aluminium alloy of semisolid pressure casting
CN109732052A (en) * 2018-12-14 2019-05-10 珠海市润星泰电器有限公司 A kind of pressure casting method filtering cavity
WO2020119502A1 (en) * 2018-12-14 2020-06-18 珠海市润星泰电器有限公司 Die casting method for filtering cavity
CN109732052B (en) * 2018-12-14 2020-09-22 珠海市润星泰电器有限公司 Die casting method of filtering cavity
US11752548B2 (en) 2018-12-14 2023-09-12 Zhuhai Runxingtai Electrical Co., Ltd Die casting method for filtering cavity

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Effective date of registration: 20190625

Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing

Applicant after: Research Institute of engineering and Technology Co., Ltd.

Address before: No. 2, Xinjie street, Xicheng District, Beijing, Beijing

Applicant before: General Research Institute for Nonferrous Metals

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Application publication date: 20170627