CN111705271A - 一种低振实密度316粉末及其制备方法 - Google Patents
一种低振实密度316粉末及其制备方法 Download PDFInfo
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- CN111705271A CN111705271A CN202010341053.5A CN202010341053A CN111705271A CN 111705271 A CN111705271 A CN 111705271A CN 202010341053 A CN202010341053 A CN 202010341053A CN 111705271 A CN111705271 A CN 111705271A
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- 239000000843 powder Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000035699 permeability Effects 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
- B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
本发明公开一种低振实密度316粉末，所述低振实密度316粉末的合金元素质量百分比为Si0.3‑1.0％、Cr16‑18％、Mn0.3‑1.2％、Ni12‑14％、余量为Fe。本发明粉末氧含量可控，杂质含量低，C元素质量分数小于等于0.03％；此方法粉末呈不规则形貌，压制烧结后成品机械强度高，透气性好，耐高温，过滤精度范围较广；激光粒度在20～30μm之间，氧含量小于0.28％，振实密度≤3.8g/cm3。
Description
技术领域
本发明涉及不锈钢粉末技术领域，具体是一种低振实密度316粉末及其制备方法。
背景技术
不锈钢粉末烧结过滤材料是以316粉末等为原料，经过筛分、成型、烧结而成的微过滤元件。过滤精度高，透气性好，机械强度高，广泛用于化工，环保等领域。但是目前316粉末杂质含量高，C元素质量分数较小，透气性差。
发明内容
本发明的目的在于针对现有技术的缺陷和不足，提供一种低振实密度316粉末及其制备方法。
为实现上述目的，本发明采用的技术方案是：一种低振实密度316粉末，其创新点在于：所述低振实密度316粉末的合金元素质量百分比为Si0.3-1.0％、Cr16-18％、Mn0.3-1.2％、Ni12-14％、余量为Fe，激光粒度在20～30μm之间，氧含量小于0.28％，振实密度≤3.8g/cm3。
一种所述低振实密度316粉末的制备方法，其创新点在于，具体步骤如下：
(1)将Si、Cr、Mn、Ni、Fe5种原材料按比例配好，投入250Kg中频炉冶炼，熔化1小时左右待钢液化清后升温至1600-1650℃，通过100-110Mpa高压水雾化成粉末；
(2)雾化后粉末经过干燥，筛分，合批，得到成品。
本发明有益效果为：
本发明粉末氧含量可控，杂质含量低，C元素质量分数小于等于0.03％；此方法粉末呈不规则形貌，压制烧结后成品机械强度高，透气性好，耐高温，过滤精度范围较广。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下以具体实施方式，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施方式仅用以解释本发明，并不用于限定本发明。
实施例1
一种低振实密度316粉末的制备方法，具体步骤如下：
(1)将Si0.3％、Cr16％、Mn0.3％、Ni12％、Fe5种原材料按比例配好，投入250Kg中频炉冶炼，熔化1小时左右待钢液化清后升温至1600℃，通过100Mpa高压水雾化成粉末；
(2)雾化后粉末经过干燥，筛分，合批，得到成品。
实施例2
一种低振实密度316粉末的制备方法，具体步骤如下：
(1)将Si1.0％、Cr18％、Mn1.2％、Ni14％、Fe5种原材料按比例配好，投入250Kg中频炉冶炼，熔化1小时左右待钢液化清后升温至1650℃，通过110Mpa高压水雾化成粉末；
(2)雾化后粉末经过干燥，筛分，合批，得到成品。
实施例3
一种低振实密度316粉末的制备方法，具体步骤如下：
(1)将Si0.7％、Cr17％、Mn0.9％、Ni13％、Fe5种原材料按比例配好，投入250Kg中频炉冶炼，熔化1小时左右待钢液化清后升温至1625℃，通过105Mpa高压水雾化成粉末；
(2)雾化后粉末经过干燥，筛分，合批，得到成品。
表一
从上表可以看出，本发明所生产的低振实密度316粉末C元素质量分数小于等于0.03％，而且粉末呈不规则形貌，压制烧结后成品机械强度高，透气性好，耐高温，过滤精度范围较广。
以上所述，仅用以说明本发明的技术方案而非限制，本领域普通技术人员对本发明的技术方案所做的其它修改或者等同替换，只要不脱离本发明技术方案的精神和范围，均应涵盖在本发明的权利要求范围当中。
Claims (2)
1.一种低振实密度316粉末，其特征在于：所述低振实密度316粉末的合金元素质量百分比为Si0.3-1.0％、Cr16-18％、Mn0.3-1.2％、Ni12-14％、余量为Fe。
2.一种如权利要求1所述低振实密度316粉末的制备方法，其特征在于，具体步骤如下：
(1)将Si、Cr、Mn、Ni、Fe5种原材料按比例配好，投入250Kg中频炉冶炼，熔化1小时左右待钢液化清后升温至1600-1650℃，通过100-110Mpa高压水雾化成粉末；
(2)雾化后粉末经过干燥，筛分，合批，得到成品。
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|---|---|---|---|
| CN202010341053.5A CN111705271A (zh) | 2020-04-27 | 2020-04-27 | 一种低振实密度316粉末及其制备方法 |
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| CN202010341053.5A CN111705271A (zh) | 2020-04-27 | 2020-04-27 | 一种低振实密度316粉末及其制备方法 |
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| CN111705271A true CN111705271A (zh) | 2020-09-25 |
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| CN202010341053.5A Pending CN111705271A (zh) | 2020-04-27 | 2020-04-27 | 一种低振实密度316粉末及其制备方法 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52138422A (en) * | 1976-05-17 | 1977-11-18 | Daido Steel Co Ltd | High strength bolt stainless steel |
| CN1260841A (zh) * | 1997-06-17 | 2000-07-19 | 赫加奈斯公司 | 不锈钢粉末 |
-
2020
- 2020-04-27 CN CN202010341053.5A patent/CN111705271A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52138422A (en) * | 1976-05-17 | 1977-11-18 | Daido Steel Co Ltd | High strength bolt stainless steel |
| CN1260841A (zh) * | 1997-06-17 | 2000-07-19 | 赫加奈斯公司 | 不锈钢粉末 |
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