CN104372262B - 一种医疗器械用不锈钢及其制备方法 - Google Patents

一种医疗器械用不锈钢及其制备方法 Download PDF

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CN104372262B
CN104372262B CN201410626079.9A CN201410626079A CN104372262B CN 104372262 B CN104372262 B CN 104372262B CN 201410626079 A CN201410626079 A CN 201410626079A CN 104372262 B CN104372262 B CN 104372262B
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金仲恩
全春兰
张帆
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XUZHOU NAILI MACROMOLECULE TECHNOLOGY CO., LTD.
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Abstract

一种医疗器械用不锈钢及其制备方法，该不锈钢包括按照质量份数计的如下化学成分：碳C0.2～0.5份，铬Cr19～26份，钼Mo1～5份，硅Si0.5～0.9份，镍Ni0.3～0.6份，铜Cu0.04～0.08份，钛Ti0.1～0.3份，铌Nb0.07～0.13份，铪Hf0.01～0.04份，砷As0.02～0.06份，硫S0.008～0.015份，磷P0.005～0.01份，铁Fe95～106份。本发明提供的不锈钢具有优异的机械性能、工艺性能、耐高温氧化性能和防腐蚀性能，并且具有良好的韧性和可塑性，是优异的医疗器械用不锈钢材料。

Description

一种医疗器械用不锈钢及其制备方法
技术领域
本发明涉及医学用品领域，尤其涉及一种医疗器械用不锈钢及其制备方法。
背景技术
医疗器械，是指直接或者间接用于人体的仪器、设备、器具、体外诊断试剂及校准物、材料以及其他类似或者相关的物品包括所需要的计算机软件；其效用主要通过物理等方式获得，不是通过药理学、免疫学或者代谢的方式获得，或者虽然有这些方式参与但是只起辅助作用。
医疗器械用不锈钢需要具备优异的耐腐蚀、抗氧化、机械性、韧性、可塑性、焊接性等性能。但是，目前市场上所用的医疗器械的机械性能和工艺性能差、耐高温氧化和防腐蚀性能不高。
发明内容
解决的技术问题：针对现有的医疗器械用不锈钢存在的性能的缺陷，本发明提供一种医疗器械用不锈钢及其制备方法，该不锈钢具有优异的机械性能、工艺性能、耐高温氧化性能和防腐蚀性能。
技术方案：一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.2～0.5份，铬Cr19～26份，钼Mo1～5份，硅Si0.5～0.9份，镍Ni0.3～0.6份，铜Cu0.04～0.08份，钛Ti0.1～0.3份，铌Nb0.07～0.13份，铪Hf0.01～0.04份，砷As0.02～0.06份，硫S0.008～0.015份，磷P0.005～0.01份，铁Fe95～106份。
上述所述的一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.3～0.4份，铬Cr20～24份，钼Mo2～4份，硅Si0.6～0.8份，镍Ni0.4～0.5份，铜Cu0.05～0.07份，钛Ti0.15～0.2份，铌Nb0.09～0.12份，铪Hf0.02～0.035份，砷As0.03～0.05份，硫S0.01～0.013份，磷P0.008～0.01份，铁Fe98～103份。
上述所述的一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.35份，铬Cr21份，钼Mo2.4份，硅Si0.64份，镍Ni0.43份，铜Cu0.056份，钛Ti0.16份，铌Nb0.1份，铪Hf0.024份，砷As0.035份，硫S0.011份，磷P0.0086份，铁Fe99份。
上述所述的一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.35份，铬Cr23份，钼Mo2.7份，硅Si0.7份，镍Ni0.47份，铜Cu0.06份，钛Ti0.19份，铌Nb0.11份，铪Hf0.032份，砷As0.04份，硫S0.012份，磷P0.0093份，铁Fe101份。
上述所述的一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1100～1200℃，锻制成锻件；再将锻件加热至1100～1200℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
上述所述的钢锭加热至1150℃，锻件加热至1150℃。
有益效果：与现有技术相比，本发明提供的一种医疗器械用不锈钢及其制备方法，该不锈钢具有优异的机械性能、工艺性能、耐高温氧化性能和防腐蚀性能，并且具有良好的韧性和可塑性，是优异的医疗器械用不锈钢材料。
具体实施方式
实施例1
一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.2份，铬Cr19份，钼Mo1份，硅Si0.5份，镍Ni0.3份，铜Cu0.04份，钛Ti0.1份，铌Nb0.07份，铪Hf0.01份，砷As0.02份，硫S0.008份，磷P0.005份，铁Fe95份。
一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1100℃，锻制成锻件；再将锻件加热至1100℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
实施例2
一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.5份，铬Cr26份，钼Mo5份，硅Si0.9份，镍Ni0.6份，铜Cu0.08份，钛Ti0.3份，铌Nb0.13份，铪Hf0.04份，砷As0.06份，硫S0.015份，磷P0.01份，铁Fe106份。
一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1200℃，锻制成锻件；再将锻件加热至1200℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
实施例3
一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.3份，铬Cr20份，钼Mo2份，硅Si0.6份，镍Ni0.4份，铜Cu0.05份，钛Ti0.15份，铌Nb0.09份，铪Hf0.02份，砷As0.03份，硫S0.01份，磷P0.008份，铁Fe98份。
一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1100℃，锻制成锻件；再将锻件加热至1100℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
实施例4
一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.4份，铬Cr24份，钼Mo4份，硅Si0.8份，镍Ni0.5份，铜Cu0.07份，钛Ti0.2份，铌Nb0.12份，铪Hf0.035份，砷As0.05份，硫S0.013份，磷P0.01份，铁Fe103份。
一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1200℃，锻制成锻件；再将锻件加热至1200℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
实施例5
一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.35份，铬Cr21份，钼Mo2.4份，硅Si0.64份，镍Ni0.43份，铜Cu0.056份，钛Ti0.16份，铌Nb0.1份，铪Hf0.024份，砷As0.035份，硫S0.011份，磷P0.0086份，铁Fe99份。
一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1150℃，锻制成锻件；再将锻件加热至1150℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
实施例6
一种医疗器械用不锈钢，包括按照质量份数计的如下化学成分：碳C0.35份，铬Cr23份，钼Mo2.7份，硅Si0.7份，镍Ni0.47份，铜Cu0.06份，钛Ti0.19份，铌Nb0.11份，铪Hf0.032份，砷As0.04份，硫S0.012份，磷P0.0093份，铁Fe101份。
一种医疗器械用不锈钢的制备方法，包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1150℃，锻制成锻件；再将锻件加热至1150℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
性能测试
对本发明实施例1~6产品的性能进行测试，测试结果见表1。
表1产品性能测试数据
实施例1 实施例2 实施例3 实施例4 实施例5 实施例6
抗拉强度/MPa 1140 1160 1155 1230 1260 1280
延伸率/% 36 35.8 35.5 35.7 35.2 34.8
断面收缩率/% 60 59.5 59.2 58.7 59 58.3
耐高温氧化性能/℃ 1276 1302 1298 1315 1340 1356
以上对本发明进行了详细介绍，对于本领域的一般技术人员，依据本发明实施例的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (6)

1.一种医疗器械用不锈钢，其特征在于包括按照质量份数计的如下化学成分：碳C0.2～0.5份，铬Cr19～26份，钼Mo1～5份，硅Si0.5～0.9份，镍Ni0.3～0.6份，铜Cu0.04～0.08份，钛Ti0.1～0.3份，铌Nb0.07～0.13份，铪Hf0.01～0.04份，砷As0.02～0.06份，硫S0.008～0.015份，磷P0.005～0.01份，铁Fe95～106份。
2.根据权利要求1所述的一种医疗器械用不锈钢，其特征在于包括按照质量份数计的如下化学成分：碳C0.3～0.4份，铬Cr20～24份，钼Mo2～4份，硅Si0.6～0.8份，镍Ni0.4～0.5份，铜Cu0.05～0.07份，钛Ti0.15～0.2份，铌Nb0.09～0.12份，铪Hf0.02～0.035份，砷As0.03～0.05份，硫S0.01～0.013份，磷P0.008～0.01份，铁Fe98～103份。
3.根据权利要求1所述的一种医疗器械用不锈钢，其特征在于包括按照质量份数计的如下化学成分：碳C0.35份，铬Cr21份，钼Mo2.4份，硅Si0.64份，镍Ni0.43份，铜Cu0.056份，钛Ti0.16份，铌Nb0.1份，铪Hf0.024份，砷As0.035份，硫S0.011份，磷P0.0086份，铁Fe99份。
4.根据权利要求1所述的一种医疗器械用不锈钢，其特征在于包括按照质量份数计的如下化学成分：碳C0.35份，铬Cr23份，钼Mo2.7份，硅Si0.7份，镍Ni0.47份，铜Cu0.06份，钛Ti0.19份，铌Nb0.11份，铪Hf0.032份，砷As0.04份，硫S0.012份，磷P0.0093份，铁Fe101份。
5.如权利要求1所述的一种医疗器械用不锈钢的制备方法，其特征在于包括如下步骤：先将碳C、铬Cr、钼Mo、硅Si、镍Ni、铜Cu、钛Ti、铌Nb、铪Hf、砷As、硫S、磷P和铁Fe混合，进行配料、熔炼、浇铸钢锭；再将钢锭加热至1100～1200℃，锻制成锻件；再将锻件加热至1100～1200℃，进行轧制加工成棒材，空冷至室温；经机械加工，即制得医疗器械。
6.根据权利要求5所述的一种医疗器械用不锈钢的制备方法，其特征在于：所述钢锭加热至1150℃，锻件加热至1150℃。
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