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A platform for research: civil engineering, architecture and urbanism
Shovel tooth and preparation method thereof
The invention discloses a shovel tooth and a preparation method thereof. The method comprises the following steps: smelting raw materials to obtain molten iron, wherein the molten iron comprises the following components: C, Mn, Si, Cr, Al, Mo, Cu, Ni, Sb, V and iron; spheroidizing, inoculating and slagging off the molten iron, cooling the molten iron to 1350-1380 DEG C, then carrying out pouring, and performing heat treatment to obtain the shovel tooth, wherein the heat treatment comprises the following steps: carrying out heating to 950-1100 DEG C, keeping the temperature for 10-30 minutes, performing air cooling to room temperature, carrying out heating to T DEG C, keeping the temperature for t min, wherein T is equal to 870-910, and t is equal to 80-110; placing the unfinished product into a nitrate solution at 220-300 DEG C, keeping the temperature for 100-200 minutes, performing water quenching at room temperature for 30-45 minutes, cooling the unfinished product in liquid nitrogen at -200 DEG C to -190 DEG C for 100-150 minutes, and standing to room temperature. The method provided by the invention is simple in process, and the obtained shovel tooth is high in hardness, good in impact toughness, excellent in wear resistance and long in service life.
本发明公开了一种铲齿及其制备方法，所述方法包括：将原料熔炼得铁水；铁水的成分包括C、Mn、Si、Cr、Al、Mo、Cu、Ni、Sb、V和铁；将铁水球化、孕育、扒渣，降至1350‑1380℃后浇注，热处理得到铲齿；热处理包括：升温至950‑1100℃保温10‑30min，空冷至室温，升温至T℃保温tmin，T＝870‑910，t＝80‑110，放入温度为220‑300℃的硝酸盐溶液中保温100‑200min，室温下水淬30‑45min后在‑200℃至‑190℃的液氮中冷却100‑150min，放置至室温。本发明提出的方法过程简单，得到的铲齿硬度高、冲击韧性好、耐磨性优异、使用寿命长。
Shovel tooth and preparation method thereof
The invention discloses a shovel tooth and a preparation method thereof. The method comprises the following steps: smelting raw materials to obtain molten iron, wherein the molten iron comprises the following components: C, Mn, Si, Cr, Al, Mo, Cu, Ni, Sb, V and iron; spheroidizing, inoculating and slagging off the molten iron, cooling the molten iron to 1350-1380 DEG C, then carrying out pouring, and performing heat treatment to obtain the shovel tooth, wherein the heat treatment comprises the following steps: carrying out heating to 950-1100 DEG C, keeping the temperature for 10-30 minutes, performing air cooling to room temperature, carrying out heating to T DEG C, keeping the temperature for t min, wherein T is equal to 870-910, and t is equal to 80-110; placing the unfinished product into a nitrate solution at 220-300 DEG C, keeping the temperature for 100-200 minutes, performing water quenching at room temperature for 30-45 minutes, cooling the unfinished product in liquid nitrogen at -200 DEG C to -190 DEG C for 100-150 minutes, and standing to room temperature. The method provided by the invention is simple in process, and the obtained shovel tooth is high in hardness, good in impact toughness, excellent in wear resistance and long in service life.
本发明公开了一种铲齿及其制备方法，所述方法包括：将原料熔炼得铁水；铁水的成分包括C、Mn、Si、Cr、Al、Mo、Cu、Ni、Sb、V和铁；将铁水球化、孕育、扒渣，降至1350‑1380℃后浇注，热处理得到铲齿；热处理包括：升温至950‑1100℃保温10‑30min，空冷至室温，升温至T℃保温tmin，T＝870‑910，t＝80‑110，放入温度为220‑300℃的硝酸盐溶液中保温100‑200min，室温下水淬30‑45min后在‑200℃至‑190℃的液氮中冷却100‑150min，放置至室温。本发明提出的方法过程简单，得到的铲齿硬度高、冲击韧性好、耐磨性优异、使用寿命长。
Shovel tooth and preparation method thereof
一种铲齿及其制备方法
CHEN QUANXIN (author) / CHEN CANGUANG (author) / GUI JINGSONG (author) / YAO YONGMAO (author) / CHENG QI (author) / DAI JING (author)
2021-11-30
Patent
Electronic Resource
Chinese
IPC:
C22C
Legierungen
,
ALLOYS
/
B22C
FOUNDRY MOULDING
,
Gießformen
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
C21C
Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl
,
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
/
C21D
Veränderung der physikalischen Struktur von Eisenmetallen
,
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
/
E02F
Baggern
,
DREDGING
TOOTH BOARD ATTACHED TO BUCKET FOR SHOVEL MACHINE AND BUCKET FOR SHOVEL MACHINE WITH TOOTH BOARD
| European Patent Office | 2017
| European Patent Office | 2018