CN101168808A - Method for producing Cu-Ti alloy used for injection moulding die - Google Patents
Method for producing Cu-Ti alloy used for injection moulding die Download PDFInfo
- Publication number
- CN101168808A CN101168808A CNA2007101901946A CN200710190194A CN101168808A CN 101168808 A CN101168808 A CN 101168808A CN A2007101901946 A CNA2007101901946 A CN A2007101901946A CN 200710190194 A CN200710190194 A CN 200710190194A CN 101168808 A CN101168808 A CN 101168808A
- Authority
- CN
- China
- Prior art keywords
- alloy
- casting
- copper
- injection moulding
- furnace
- 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
Landscapes
- Conductive Materials (AREA)
Abstract
The invention provides a Cu-Ti alloy production method used for an injection mold. The fusion casting is performed through a subsurface flow type cored composed electric furnace under the protection of inert gas, and the smelting temperature is controlled between 1200 DEG C to 1350 DEG C; 0.01 to 0.5wt percent of the third element group is added after copper, titanium and other micro alloy elements melted, and the inert gas is filled in the furnace during the melting process; copper liquid is unceasingly supplemented according to the casting speed; the melted liquid is coagulated into casting ingot through a crystallizer, and the casting ingot is drawn out through a casting machine; after the casting ingot is performed with coagulating and forging treatment, the casting ingot is performed with the aging treatment at 350 DEG C to 450 DEG C for 5 to 20 hours, to ensure that the diameter vertical to the compound phase between Cu-Ti metals on the rolling direction cross section is controlled between 0.02 to 0.2 micrometers. Appropriate amount of microelements such as Cr and Zr are added, to reach the purpose of relaying of the problem of overaging, to enhance the softening temperature of the alloy, to enhance the conductivity of the alloy under the condition that the alloy strength is not reduced, and to realize the continuous production of Cu-Ti alloy. The alloy has excellent strength, heat conduction and heat-resistance comprehensive performance, and better satisfies the request of the plastic mold.
Description
Technical field
The present invention relates to a kind of method for producing of Cu-Ti alloy used for injection moulding die, belong to technical field of nonferrous metal processing.
Background technology
The plastic rubber shaping moulding stock generally adopts carbon steel, tool steel etc., but because the thermal conductivity of steel is low, and the shot cycle when causing injection moulding is longer, production efficiency is not high.Begun in the plastic mould manufacturing more and more to adopt copper alloy die material, such as beryllium copper, and the trend of appearance rising.Because the costing an arm and a leg of beryllium copper, and beryllium smelt and hot procedure in have toxic side effect, the beryllium copper material has been limited to use in some countries.
The copper alloy of titaniferous amount 2～5wt.% have the performance suitable with beryllium copper, and stress relaxation resistance is better than beryllium copper.Therefore, the copper-titanium alloy material of developing a kind of high-strength highly-conductive and having good castibility and processing characteristics is applied in the injection mold, will be a research topic with great economy meaning.
Summary of the invention
The copper-titanium alloy material that the purpose of this invention is to provide a kind of high-strength highly-conductive and have good castibility and processing characteristics can be widely used in the injection mold.
Purpose of the present invention is achieved through the following technical solutions:
The production method of Cu-Ti alloy used for injection moulding die, it is characterized in that: under the protection of inert gas condition, utilize the power frequency cored combined electric furnace of undercurrent type to carry out founding, adopt undercurrent type to mend process for copper, chute and smelting furnace seal fully, and smelting temperature is controlled at 1200 ℃～1350 ℃; During production, at first prepare copper, titanium and other trace alloying element, close behind the chute in the power frequency cored smelting furnace that raw material packed into, add the 3rd groups of elements of 0.01～0.5wt% after waiting copper to melt substantially again, be full of rare gas element in the fusion process in the stove; Open chute after the fusing, copper liquid constantly flows into power frequency cored holding furnace by chute, according to the continuous supplementation with copper liquid of casting speed; Last solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer, draws ingot casting by casting machine; Again with ingot casting 350 ℃～450 ℃ ageing treatment 5～20 hours, make diameter be controlled at 0.02～0.2 μ m perpendicular to Cu-Ti intermetallic compound phase on the rolling direction cross section.
Further, the production method of above-mentioned Cu-Ti alloy used for injection moulding die is characterized in that: described the 3rd groups of elements is more than one among Cr, Co, V, Zr, B, Ni and the P.
Further, the production method of above-mentioned Cu-Ti alloy used for injection moulding die is characterized in that: in the timeliness process of cooling, be not higher than 50 ℃/h from the speed of cooling of aging temp to 200 ℃.
Substantive distinguishing features and obvious improvement that technical solution of the present invention is outstanding are mainly reflected in:
Founding is carried out in blanketing with inert gas of the present invention, avoids the effect of alloying element and airborne oxygen, nitrogen, realizes the continuous production of Cu-Ti alloy.By adding trace elements such as The addition of C r, Zr, reach the purpose that delays overaging, improve the softening temperature of alloy, under the situation that does not reduce alloy strength, improve the specific conductivity of alloy.By suitable aging technique, make on cross section perpendicular to rolling direction, the diameter of Cu-Ti intermetallic compound phase is controlled at 0.02～0.2 μ m.The injection mold copper-titanium alloy material that adopts technical solution of the present invention can obtain high-strength highly-conductive and have good castibility and processing characteristics is because of its excellent intensity, heat conduction and heat-resisting over-all properties are widely used in the injection mold.
Embodiment
Blanketing with inert gas method of the present invention replaces the method for vacuum casting, prepares the Cu-Ti alloy, avoids the effect of alloying element and airborne oxygen, nitrogen; Realize low cost, the continuous production of Cu-Ti alloy.Also add an amount of micro-Cr, Zr, Mg, B etc., reach the generation that delays overaging, improve the softening temperature of alloy, under the situation that does not reduce alloy strength, improve the thermal conductivity of alloy.In addition, by adding the proper amount of rare-earth element, improve the cutting ability of alloy.And by suitable aging technique, make on the cross section perpendicular to rolling direction, the diameter of Cu-Ti intermetallic compound phase is controlled between 0.02～0.2 μ m.
The production process of alloy product mainly comprises: casting-solid solution-technologies such as forging-timeliness.
1) non-vacuum melting
Because contain the Ti of 3.0～4.0wt% in the Cu-Ti alloy, more than 650 ℃, oxygen will spread, form the hard zone of oxidation of one deck in titanium; More than 700 ℃, violent effect will take place in nitrogen and titanium, form TiN in addition.If melting in atmosphere, will produce problems such as air-breathing, oxygen uptake, nonmetal inclusion; In the open type casting process, also easily produce similar problem, influence the performance of material.Traditional casting method of copper-titanium alloy is to carry out in vacuum oven; and undercurrent type Cu-Ti alloy horizontal continuous-casting technology is adopted in invention; this technology is on the basis of traditional horizontal continuous-casting technology; adopt undercurrent type to mend process for copper; chute and smelting furnace are sealed fully; and the employing gas shield, guarantee that melt and air are isolated, avoid in melting chute and casting process defectives such as the melt generation is air-breathing, slag inclusion.Can feed in raw material at any time by charge cavity in process of production, adjust alloying constituent.
2) adding of the 3rd groups of elements
In order to delay the grain growth in the recrystallization annealing process, suppress TiCu
3Separating out of phase adds the 3rd an amount of groups of elements and forms the 2nd phase particle.This particle need have thermostability, can form in the annealing process before solution treatment or solution treatment, and in cold rolling, ag(e)ing process, its form changes hardly.The adding of these elements does not influence the formation of amplitude modulation tissue.The formed second phase particle is not to be purpose with the precipitation-hardening, but with suppress crystal grain grow up and overaging is a purpose.The 3rd groups of elements is more than one among Zr, Co, V, Zr, B, Ni and the P, and its add-on is controlled at 0.01～0.5wt%.
3) ageing treatment
Aging temp is chosen in 350 ℃～450 ℃.Be lower than 350 ℃, then the Cu-Ti intermetallic compound is separated out insufficiently mutually, can not obtain high intensity and specific conductivity; If be higher than 450 ℃, then the Cu-Ti intermetallic compound is easy to thickization mutually, and is easy to overaging, causes alloy strength to reduce.Aging time is between 5～20 hours.In addition, in the timeliness process of cooling, in order to cause fully separating out of Cu-Ti intermetallic compound phase, should not be higher than 50 ℃/h from the speed of cooling of aging temp to 200 ℃.
Embodiment
With industrial electrolysis copper, titanium sponge and other trace alloying element is raw material, melting in the antivacuum medium-frequency induction furnace of gas shield.Smelting temperature is between 1200 ℃～1350 ℃, and teeming temperature is at 1200 ℃.Because this alloy shrinkage is more serious, for concentrating the empty formation of contracting in the middle of preventing, casting rate can not be too fast, and adopt the feeding measure.
The alloy of ingot composition sees Table 1, carries out homogenizing annealing in 24 hours 850 ℃ of insulations.Ingot casting carries out hot rolling at 850 ℃, and finishing temperature is not less than 750 ℃.Carry out the ageing treatment of 450 ℃ * 10h at last, the performance of alloy is as shown in table 1 after the timeliness.
The composition of table 1 alloy and performance
| Specimen coding | Composition | Performance | |||
| Hardness Hv | Intensity MPa | Specific conductivity %IACS | Softening temperature | ||
| 1 | Cu-3.5Ti-RE | 315 | 1067 | 18.5 | 520℃ |
| 2 | Cu-3.5Ti-Cr-RE | 311 | 1059 | 15.1 | 540℃ |
| 3 | Cu-3.5Ti-Zr-Mg-RE | 326 | 1085 | 15.4 | 560℃ |
Table 1 can show, adds the Zr of 0.1wt%, because TiCu
3Separating out of phase delayed, and contains TiCu
4The amplitude modulation tissue of phase obtains very sufficient separating out, and under the situation that does not influence intensity, has improved the specific conductivity and the resistance toheat of alloy.The Zr resistance toheat that adds 0.1wt% is brought up to 560 ℃ from 520 ℃; Because aging temp improves, electric conductivity is improved to a certain extent, and intensity does not obviously descend.The over-all properties of this alloy can satisfy the requirement of plastic mould, the shot cycle when good thermal conductivity can shorten injection moulding, enhances productivity.
On only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the rights protection scope of the present invention.
Claims (3)
1. the production method of Cu-Ti alloy used for injection moulding die, it is characterized in that: under the protection of inert gas condition, utilize the power frequency cored combined electric furnace of undercurrent type to carry out founding, adopt undercurrent type to mend process for copper, chute and smelting furnace seal fully, and smelting temperature is controlled at 1200 ℃～1350 ℃; During production, at first prepare copper, titanium and other trace alloying element, close behind the chute in the power frequency cored smelting furnace that raw material packed into, add the 3rd groups of elements of 0.01～0.5wt% after waiting copper to melt substantially again, be full of rare gas element in the fusion process in the stove; Open chute after the fusing, copper liquid constantly flows into power frequency cored holding furnace by chute, according to the continuous supplementation with copper liquid of casting speed; Last solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer, draws ingot casting by casting machine; Ingot casting is through after solid solution and the conducting forging processing, 350 ℃～450 ℃ ageing treatment 5～20 hours, makes the diameter perpendicular to Cu-Ti intermetallic compound phase on the rolling direction cross section be controlled at 0.02～0.2 μ m.
2. the production method of Cu-Ti alloy used for injection moulding die according to claim 1, it is characterized in that: described the 3rd groups of elements is more than one among Cr, Co, V, Zr, B, Ni and the P.
3. the production method of Cu-Ti alloy used for injection moulding die according to claim 1 is characterized in that: in the timeliness process of cooling, be not higher than 50 ℃/h from the speed of cooling of aging temp to 200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101901946A CN101168808A (en) | 2007-11-21 | 2007-11-21 | Method for producing Cu-Ti alloy used for injection moulding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101901946A CN101168808A (en) | 2007-11-21 | 2007-11-21 | Method for producing Cu-Ti alloy used for injection moulding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101168808A true CN101168808A (en) | 2008-04-30 |
Family
ID=39389573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101901946A Pending CN101168808A (en) | 2007-11-21 | 2007-11-21 | Method for producing Cu-Ti alloy used for injection moulding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101168808A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517622A (en) * | 2011-12-31 | 2012-06-27 | 宁波江丰电子材料有限公司 | Method for preparing anode made of copper-phosphorus alloy |
| CN102517621A (en) * | 2011-12-31 | 2012-06-27 | 宁波江丰电子材料有限公司 | Method for preparing anode made of copper-phosphorus alloy |
| CN111041256A (en) * | 2019-12-26 | 2020-04-21 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of vacuum induction melting CuTi alloy material |
| CN112760504A (en) * | 2020-12-25 | 2021-05-07 | 国工恒昌新材料沧州有限公司 | Preparation method of copper-titanium alloy |
| CN113802026A (en) * | 2021-09-18 | 2021-12-17 | 宁波博威合金板带有限公司 | Titanium bronze strip and preparation method thereof |
-
2007
- 2007-11-21 CN CNA2007101901946A patent/CN101168808A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517622A (en) * | 2011-12-31 | 2012-06-27 | 宁波江丰电子材料有限公司 | Method for preparing anode made of copper-phosphorus alloy |
| CN102517621A (en) * | 2011-12-31 | 2012-06-27 | 宁波江丰电子材料有限公司 | Method for preparing anode made of copper-phosphorus alloy |
| CN102517622B (en) * | 2011-12-31 | 2014-10-22 | 宁波江丰电子材料股份有限公司 | Method for preparing anode made of copper-phosphorus alloy |
| CN102517621B (en) * | 2011-12-31 | 2014-10-22 | 宁波江丰电子材料股份有限公司 | Method for preparing anode made of copper-phosphorus alloy |
| CN111041256A (en) * | 2019-12-26 | 2020-04-21 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of vacuum induction melting CuTi alloy material |
| CN111041256B (en) * | 2019-12-26 | 2020-09-29 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of vacuum induction melting CuTi alloy material |
| CN112760504A (en) * | 2020-12-25 | 2021-05-07 | 国工恒昌新材料沧州有限公司 | Preparation method of copper-titanium alloy |
| CN113802026A (en) * | 2021-09-18 | 2021-12-17 | 宁波博威合金板带有限公司 | Titanium bronze strip and preparation method thereof |
| CN113802026B (en) * | 2021-09-18 | 2022-06-14 | 宁波博威合金板带有限公司 | Titanium bronze strip and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101531149B (en) | Preparation method of overlength Cu-Cr-Zr alloyed contact line | |
| CN105543540A (en) | Copper chromium zirconium alloy and preparing method thereof | |
| CN105088010B (en) | A kind of high-strength highly-conductive rare earth copper zirconium alloy and preparation method thereof | |
| CN105088001B (en) | High-strength and high-conductivity copper alloy for contact line and preparation method of high-strength and high-conductivity copper alloy | |
| CN102912152B (en) | Vacuum arc remelting method for inhibiting macrosegregation of high-temperature alloy with high content of Nb | |
| CN105088000A (en) | High-strength and high-conductivity rare earth copper alloy for contact lines and preparation method thereof | |
| CN100532599C (en) | Fatigue resistant Cu-Ti alloy and producing method thereof | |
| CN109722560B (en) | ZrC reinforced Cu-Fe-based composite material and preparation method thereof | |
| CN104561642B (en) | Ultrathin high-conductivity Cr-Zr-Cu wire and preparation method thereof | |
| CN101168808A (en) | Method for producing Cu-Ti alloy used for injection moulding die | |
| CN103255319A (en) | Al-Yb-Zr heatproof aluminium alloy and its heat treatment technology | |
| CN100491558C (en) | High-performance yttrium-base heavy rare earth copper alloy die material and preparation method thereof | |
| CN104818424B (en) | High-quality H13 rare earth die steel and production method thereof | |
| CN106555073B (en) | A kind of high-strength highly-conductive rare earth copper magnesium alloy contact wire and preparation method thereof | |
| CN109735741B (en) | Multiphase reinforced copper alloy for electronic packaging and preparation method thereof | |
| CN108315581A (en) | A kind of low beryllium content copper alloy and preparation method thereof of high intensity high softening temperature | |
| CN111593224B (en) | Preparation method of consumable electrode bar for copper-chromium arc melting | |
| CN105087999A (en) | High-strength and high-conductivity copper and zirconium alloy and preparation method thereof | |
| CN109735740B (en) | Multiphase reinforced electronic packaging material added with rare earth and preparation method thereof | |
| CN102191405B (en) | Copper alloy applied to clamping and loading tools of strip steel welding equipment and its production method | |
| CN111850340A (en) | High-conductivity and high-hardness chromium-zirconium-copper alloy, preparation method and application thereof | |
| CN108165814A (en) | A kind of carbon microalloy Cu-Cr based materials and preparation method thereof | |
| CN102534299B (en) | Beryllium-free polybasic copper alloy | |
| CN102492869B (en) | Copper-zirconium-bismuth alloy and its preparation method | |
| CN106086507A (en) | A kind of Cu-Cr-Zr alloy for preparing screw-contact and processing technique thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |