CN103495834A - 外科植入物医用tc20钛合金板材的制备方法 - Google Patents

外科植入物医用tc20钛合金板材的制备方法 Download PDF

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CN103495834A
CN103495834A CN201310416279.7A CN201310416279A CN103495834A CN 103495834 A CN103495834 A CN 103495834A CN 201310416279 A CN201310416279 A CN 201310416279A CN 103495834 A CN103495834 A CN 103495834A
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CN103495834B (zh
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郑永利
董军利
何忠义
陈建军
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BAOJI XINNUO NEW METAL Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets

Abstract

本发明属于金属加工中外科植入物医用TC20钛合金板材的制备方法，按照如下工序实现：（1）铸锭；（2）压制板坯：取经过车光的光锭切掉冒口冒底，加热到1000-1100℃维持4h-4.5h，然后用压力为2500t以上水压机，经过三墩三拔锻压制成δ50mm板坯，最后将表面缺陷裂纹打磨干净；（3）板材备料轧制；（4）表面处理；（5）板材轧制：在Φ650mm轧机上进行轧制，加热温度900℃-920℃，保温50-65分钟，道次变形量10%，轧制成品尺寸在δ10mm以下，轧制完成后空气冷却；（6）成品：对热轧制至成品尺寸的板材进行表面碱、酸洗，使之无缺陷，退火，检验。本制备方法采用热锻造“三墩三拔”的特殊制备工艺和热轧制合理的变形量分配，使TC20板材各部位组织变形均匀，充分，性能一致，具有优异的产品稳定性。

Description

外科植入物医用TC20钛合金板材的制备方法
技术领域
本发明属于金属材料加工技术领域，特别是医用钛金属材料的制备。
背景技术
钛合金被认为是最与人体组织融合性好的金属，因此目前越来越多的被植入人体作为替代人体组织。比如TC20钛合金一直认为是最好的医用材料。但是目前仅限于小批量实验室制作板材，工业化制备医用TC20板材还没有先例。
发明内容
本发明目的是提供一种外科植入物医用TC20钛合金板材的制备方法，以满足TC20钛合金医用板材大批量工业化生产需要。
外科植入物医用TC20钛合金板材的制备方法，其特征是按照如下工序实现：
（1）铸锭：海绵钛配制中间合金后压制成电极，焊接后真空自耗熔炼成铸锭，再进行车光扒皮成为表面光亮的金属锭；
（2）压制板坯：取经过车光的光锭切掉冒口冒底，加热到1000-1100℃维持4h-4.5h，然后用压力为2500t以上水压机，经过三墩三拔锻压制成δ50mm板坯，最后将表面缺陷裂纹打磨干净；
（3）板材备料轧制：将表面缺陷打磨干净的δ50mm板坯，经过Φ850mm轧机进行轧制，每道次压下量不大于20%，终轧温度不低于800℃，并配合固溶处理，热轧制至接近δ15mm规格的板材备料；
（4）表面处理：对备料进行表面碱酸洗去掉表面氧化皮，并打磨掉因热轧造成的表面裂纹缺陷；
（5）板材轧制：在Φ650mm轧机上进行轧制，加热温度900℃-920℃，保温50-65分钟，道次变形量10%，轧制成品尺寸在δ10mm以下，轧制完成后空气冷却；
（6）成品：对热轧制至成品尺寸的板材进行表面碱、酸洗，使之无缺陷，无污染，以达到光亮表面，然后进行剪切，并在真空度10-3MPa，温度700℃-750℃的环境下退火，检验。
本制备方法采用热锻造“三墩三拔”的特殊制备工艺和热轧制合理的变形量分配，使TC20板材各部位组织变形均匀，充分，性能一致，具有优异的产品稳定性，并适用于工业化稳定生产。为外科植入物用TC20（Ti6AL7Nb）钛合金δ1.0-δ10.0mm板材的制备较好的手段。
具体实施方式
外科植入物医用TC20钛合金板材的制备方法，其按照如下工序实现：
（1）、海绵钛配制中间合金后压制电极，焊接熔炼（真空自耗），成为Φ400mm铸锭，再车光进行扒皮成为光亮表面的金属锭；
（2）、取经过车光的光锭切掉冒口冒底，加热1000-1100℃/4h-4.5h在2500t水压机，经过三墩三拔锻压制成δ50mm板坯，表面缺陷裂纹打磨干净。
3、将表面缺陷打磨干净的δ50mm板坯，经过Φ850mm轧机进行轧制，道次压下量不大于20%，终轧温度不低于800℃，并配合固溶处理，热轧制至δ15mm左右规格的板材备料。
4、对备料进行表面碱酸洗去掉表面氧化皮，打磨掉因热轧造成的表面裂纹等缺陷。
5、产品成品轧制在Φ650mm轧机上进行，加热温度900℃-920℃，保温50-65分钟，道次变形量10%左右，轧制成品尺寸在δ10mm以下，轧制完成后空冷。
6、对热轧制至成品尺寸的板材进行表面碱、酸洗，使之无缺陷，无污染，以达到光亮表面，然后进行剪切，并真空退火（真空度10-3MPa温度700℃-750℃的环境下退火，检验，交货。
制得的板材200倍金相照片显示，显微组织为α-β两相区加工形成的良好弥散组织，高倍评级为A1级，组织性能稳定。完全满足GB/T23102-2008/ISO583-11标准要求。

Claims (1)

1.外科植入物医用TC20钛合金板材的制备方法，其特征是按照如下工序实现：
（1）铸锭：海绵钛配制中间合金后压制成电极，焊接后真空自耗熔炼成铸锭，再进行车光扒皮成为表面光亮的金属锭；
（2）压制板坯：取经过车光的光锭切掉冒口冒底，加热到1000-1100℃维持4h-4.5h，然后用压力为2500t以上水压机，经过三墩三拔锻压制成δ50mm板坯，最后将表面缺陷裂纹打磨干净；
（3）板材备料轧制：将表面缺陷打磨干净的δ50mm板坯，经过Φ850mm轧机进行轧制，每道次压下量不大于20%，终轧温度不低于800℃，并配合固溶处理，热轧制至接近δ15mm规格的板材备料；
（4）表面处理：对备料进行表面碱酸洗去掉表面氧化皮，并打磨掉因热轧造成的表面裂纹缺陷；
（5）板材轧制：在Φ650mm轧机上进行轧制，加热温度900℃-920℃，保温50-65分钟，道次变形量10%，轧制成品尺寸在δ10mm以下，轧制完成后空气冷却；
（6）成品：对热轧制至成品尺寸的板材进行表面碱、酸洗，使之无缺陷，无污染，以达到光亮表面，然后进行剪切，并在真空度10-3MPa，温度700℃-750℃的环境下退火，检验。
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CN104651767A (zh) * 2015-01-27 2015-05-27 洛阳双瑞精铸钛业有限公司 一种医用tc4eli钛合金中厚板的加工方法
CN104668303A (zh) * 2015-01-27 2015-06-03 洛阳双瑞精铸钛业有限公司 一种优质外科植入物tc4eli钛合金薄板的加工方法
CN106425294A (zh) * 2016-09-21 2017-02-22 宝鸡鑫诺新金属材料有限公司 磁致伸缩牙科专用tc4合金棒材的制备工艺
CN108098268A (zh) * 2017-12-18 2018-06-01 西安赛特思迈钛业有限公司 一种高尺寸精度医用钛合金板材的加工方法
CN108480418A (zh) * 2018-03-19 2018-09-04 江苏大学 一种高强度tc6钛合金薄板的制备方法
CN111346920A (zh) * 2020-04-02 2020-06-30 陕西工业职业技术学院 一种Ti6Al7Nb钛合金薄板及其制备方法

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104651767A (zh) * 2015-01-27 2015-05-27 洛阳双瑞精铸钛业有限公司 一种医用tc4eli钛合金中厚板的加工方法
CN104668303A (zh) * 2015-01-27 2015-06-03 洛阳双瑞精铸钛业有限公司 一种优质外科植入物tc4eli钛合金薄板的加工方法
CN104668303B (zh) * 2015-01-27 2017-01-04 洛阳双瑞精铸钛业有限公司 一种优质外科植入物tc4eli钛合金薄板的加工方法
CN106425294A (zh) * 2016-09-21 2017-02-22 宝鸡鑫诺新金属材料有限公司 磁致伸缩牙科专用tc4合金棒材的制备工艺
CN108098268A (zh) * 2017-12-18 2018-06-01 西安赛特思迈钛业有限公司 一种高尺寸精度医用钛合金板材的加工方法
CN108480418A (zh) * 2018-03-19 2018-09-04 江苏大学 一种高强度tc6钛合金薄板的制备方法
CN111346920A (zh) * 2020-04-02 2020-06-30 陕西工业职业技术学院 一种Ti6Al7Nb钛合金薄板及其制备方法
CN111346920B (zh) * 2020-04-02 2021-10-22 陕西工业职业技术学院 一种Ti6Al7Nb钛合金薄板及其制备方法

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Denomination of invention: Preparation method of medical TC20 titanium alloy sheet for surgical implants

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