CN115094344B - 一种花样冰刀材料的制造方法 - Google Patents

一种花样冰刀材料的制造方法 Download PDF

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CN115094344B
CN115094344B CN202210634824.9A CN202210634824A CN115094344B CN 115094344 B CN115094344 B CN 115094344B CN 202210634824 A CN202210634824 A CN 202210634824A CN 115094344 B CN115094344 B CN 115094344B
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skates
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祁进坤
方玉诚
赵钢
卢广锋
吴师右
魏旭旺
张小海
寇晓磊
齐国强
刘孟雅
任淑彬
曲选辉
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Hebei Wuwei Aero & Power Technology Co ltd
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Abstract

一种花样冰刀材料的制造方法，属于金属材料领域。本发明采用真空气雾化制粉技术制备质量比为C：0.4‑0.5％；Si：1.8‑2.2％；Mn：1.8‑2.2％；Mo：4.8‑5.2％；W：4.8‑5.2％；Cr：3.8‑4.2％；Nb：1.8‑2.2％；Ta：0.8‑1.2％；Ti：2.8‑3.2％；V：2.8‑3.2％；B：1.8‑2.2％；Al：3.8‑4.2％，余量为Fe的球形粉末，粉末的粒度在5‑150μm微米范围内，粉末进行热等静压烧结致密化温度为1190‑1210℃，将烧结后的热等静压锭进行锻造和轧制成板，锻造和热轧的温度为980℃‑1180℃，热轧后板坯的厚度为5‑7mm，板坯进行1170‑1190℃淬火和500‑550℃三次回火处理，得到具有优异的低温冲击韧性和强度的花样冰刀板坯材料。

Description

一种花样冰刀材料的制造方法
技术领域
本发明属于金属材料领域，涉及一种花样冰刀材料的制造方法。
背景技术
冰刀是冰上运动的基础，不同的运动项目对于冰刀的要求不同，对于花样滑冰项目而言，其不间断的弹跳技术动作要求冰刀刀刃具有优异的耐冲击韧性和强度，保证在弹跳过程中冰刀不断裂，同时要求冰刀具有高的耐磨性，以保证刀刃的锋利，防止蹬冰过程因刀刃钝化造成打滑等问题。随着花样技术动作越来越复杂，弹跳冲击越来越高，对于材料的综合性能要求也在不断提高，相应的冰刀材料也不断推陈出新。
发明内容
本发明的目的制备一种具有高的抗弯和抗压强度、高冲击韧性、高耐磨的花样冰刀材料，尽可能降低冰刀断裂的风险，提高冰刀使用过程中的安全性和可靠性。
一种速滑冰刀材料的制造方法，其特征在于制备步骤如下：
1)采用真空气雾化制粉技术制备质量比为C：0.4-0.5％；Si：1.8-2.2％；Mn：1.8-2.2％；Mo：4.8-5.2％；W：4.8-5.2％；Cr：3.8-4.2％；Nb：1.8-2.2％；Ta：0.8-1.2％；Ti：2.8-3.2％；V：2.8-3.2％；B：1.8-2.2％；Al：3.8-4.2％，余量为Fe的球形粉末，粉末的粒度范围为5-150μm，Mo：W比例为1:1，Si：Nb：Mn：B的质量为1:1：1：1，Ti和V的质量比为1:1，Cr和Al的质量比为1:1；
2)将粉末装入碳钢包套再抽真空至10-3Pa后置于热等静压炉中进行烧结致密化，烧结的温度为1190-1210℃，烧结压力为120-130MPa，烧结时间为120-150分钟；
3)将烧结后的热等静压锭去掉包套后进行锻造和轧制成板，锻造和热轧的开始温度1180℃±10℃，终止温度为980℃±10℃，热轧后板坯的厚度为5-7mm；4)将热轧板坯进行淬火和回火处理，淬火温度为1170-1190℃，保温20-25分钟后油冷，然后进行500-550℃三次回火处理，保温时间90-120分钟，得到具有高强度、高冲击韧性和高耐磨的花样冰刀材料。
本发明主要通过合金成分设计在马氏体中形成系列新型的强韧弥散强化相，强化相之间协同作用能够使得材料的综合性能得到大幅度提高，具体为在Fe基体中加入质量为1:1：1：1的Si、Nb、Mn、B合金元素、质量为1:1的Mo、W元素、质量比为1:1的Ti、V元素、质量比为1:1的Cr、Al元素以及Ta元素等，通过严格控制各元素的含量和比例以及控制热处理工艺可以在马氏体板条中形成四种具有高的断裂韧性、高硬度和强度的弥散强化相，分别为W2FeCr0.2Si0.2Nb0.1相，其尺寸小于0.5微米，含量为3-3.5wt％；(Nb0.6V0.3Ta0.15Ti0.05)C相，其尺寸0.5～1.5微米，含量为3-3.5wt％；(Fe3.2Si1.2W0.8V0.4Cr0.3Mo0.1)C相，其尺寸0.5～2微米，含量为4-5wt％；(Mo1.8Cr0.6W0.6)B2相，其尺寸0.5～2微米，含量为8-8.5wt％。
通过这四种相的协同作用，大幅度提高了冰刀的冲击韧性、强度和耐磨性，进一步提高了冰刀的安全性和可靠性，所制备的花样冰刀材料抗弯强度大于5300MPa，冲击韧性大于150J/cm2,硬度HRC 60-62。
具体实施方式:
实施例1
制备5mm厚的短道速滑冰刀刀刃用板坯材料
第一步采用真空气雾化制粉技术制备质量比为C：0.4％；Si：1.8％；Mn：1.8％；Mo：4.8％；W：4.8％；Cr：3.8％；Nb：1.8％；Ta：0.8-1.2％；Ti：2.8；V：2.8％；B：1.8％；Al：3.8％，余量为Fe的球形粉末；第二步筛取粉末粒度范围为5-150μm的粉末装入碳钢包套中，然后抽真空至10-3Pa，再将包套置于热等静压炉中进行烧结，烧结的温度为1190℃，烧结压力为120MPa，烧结时间为130min。第三步，将第二步得到的热等静压锭去掉表面的包套材料后进行锻造开坯和热轧成板坯，锻造和热轧的开始温度1180℃，终止温度为980℃，经过多道次热轧得到厚度为5mm厚的板坯。第四步，将板坯进行淬火和回火处理，淬火温度为1170℃，保温20分钟后油冷，然后进行回火处理，回火温度为500℃，保温90min，回火三次，即可得到5mm厚的花样冰刀板坯材料，经性能测试，材料硬度达到61HRC，冲击韧性152J/cm2，抗弯强度5550MPa，性能完全满足应用要求。
实施例2
制备7mm厚的冰刀用板坯材料
第一步采用真空气雾化制粉技术制备质量比为C：0.5％；Si：2.2％；Mn：2.2％；Mo：5.2％；W：5.2％；Cr：4.2％；Nb：2.2％；Ta：1.2％；Ti：3.2％；V：3.2％；B：2.2％；Al：4.2％，，余量为Fe的球形金属粉末，粉末的粒度范围为5-150μm；第二步筛取粉末粒度范围为5-150μm的粉末装入碳钢包套中，然后抽真空至10-3Pa，再将包套置于热等静压炉中进行烧结，烧结的温度为1210℃，烧结压力为130MPa，烧结时间为150min。第三步，将第二步得到的热等静压锭去掉表面的包套材料后进行锻造开坯和热轧成板坯，锻造和热轧的开始温度1180℃，终止温度为980℃，经过多道次热轧得到厚度为7mm厚的板坯。第四步，将板坯进行淬火和回火处理，淬火温度为1190℃，保温25分钟后油冷，然后进行回火处理，回火温度为550℃，保温120min，回火三次，即可得到7mm厚的花样冰刀板坯材料，经性能测试，材料硬度达到62HRC，冲击韧性155J/cm2，抗弯强度5350MPa，性能完全满足应用要求。

Claims (1)

1.一种花样冰刀材料的制造方法，其特征在于制备步骤如下：
1)采用真空气雾化制粉技术制备质量比为C：0.4-0.5％；Si：1.8-2.2％；Mn：1.8-2.2％；Mo：4.8-5.2％；W：4.8-5.2％；Cr：3.8-4.2％；Nb：1.8-2.2％；Ta：0.8-1.2％；Ti：2.8-3.2％；V：2.8-3.2％；B：1.8-2.2％；Al：3.8-4.2％，余量为Fe的球形粉末，粉末的粒度范围为5-150μm，Mo：W比例为1:1，Si：Nb：Mn：B的质量为1:1：1：1，Ti和V的质量比为1:1，Cr和Al的质量比为1:1；
2)将粉末装入碳钢包套再抽真空至10-3Pa后置于热等静压炉中进行烧结致密化，烧结的温度为1190-1210℃，烧结压力为120-130MPa，烧结时间为120-150分钟；
3)将烧结后的热等静压锭去掉包套后进行锻造和轧制成板，锻造和热轧的开始温度1180℃±10℃，终止温度为980℃±10℃，热轧后板坯的厚度为5-7mm；
4)将热轧板坯进行淬火和回火处理，淬火温度为1170-1190℃，保温20-25分钟后油冷，然后进行500-550℃三次回火处理，保温时间90-120分钟，得到具有高强度、高冲击韧性和高耐磨的花样冰刀材料。
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