[go: up one dir, main page]

CN103898421A - Crusher hammerhead and manufacturing method thereof - Google Patents

Crusher hammerhead and manufacturing method thereof Download PDF

Info

Publication number
CN103898421A
CN103898421A CN201310574782.5A CN201310574782A CN103898421A CN 103898421 A CN103898421 A CN 103898421A CN 201310574782 A CN201310574782 A CN 201310574782A CN 103898421 A CN103898421 A CN 103898421A
Authority
CN
China
Prior art keywords
stove
furnace
temperature
hammer head
insulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310574782.5A
Other languages
Chinese (zh)
Other versions
CN103898421B (en
Inventor
蒋玉俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southeast University
Original Assignee
Southeast University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southeast University filed Critical Southeast University
Priority to CN201310574782.5A priority Critical patent/CN103898421B/en
Publication of CN103898421A publication Critical patent/CN103898421A/en
Application granted granted Critical
Publication of CN103898421B publication Critical patent/CN103898421B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

本发明公开了一种破碎机锤头及其制造方法,其化学成份包括C:0.25-0.31%,Si:0.7-1.15%,Mn:1.4-1.8%,Ni:0.2-0.45%,Mo:0.2-0.3%,V:0.08-0.15%,Pb:0.06-0.15%,Zr:0.001-0.005%,Cu:0.01-0.03%,S:≤0.025%,P:≤0.025%,其余为Fe,以重量百分比计,本发明经过工艺改进,生产出来的破碎机锤头具有高韧性、耐冲击性,既具有较高硬度,耐磨性,提高了使用时间和工作安全性,有优越的工作可靠性。The invention discloses a hammer head of a crusher and a manufacturing method thereof. -0.3%, V: 0.08-0.15%, Pb: 0.06-0.15%, Zr: 0.001-0.005%, Cu: 0.01-0.03%, S: ≤0.025%, P: ≤0.025%, the rest is Fe, by weight In terms of percentage, the hammer head of the crusher produced by the present invention has high toughness, impact resistance, high hardness, wear resistance, improved service time and work safety, and has superior work reliability through process improvement.

Description

一种破碎机锤头及其制造方法Crusher hammer head and manufacturing method thereof

技术领域technical field

本发明属于破碎机技术领域,具体涉及一种破碎机锤头及其制造方法。The invention belongs to the technical field of crushers, and in particular relates to a hammer head of a crusher and a manufacturing method thereof.

背景技术Background technique

破碎机设备在矿山,建材,筑路,冶金,交通等工程技术领域中有着广泛的应用,在公路、建筑中所使用的各种规格的石料都是由大石块经破碎机破碎而成的,其中破碎机锤头的损耗直接关系到工作的成本,锤头如何延长寿命,是很多厂家努力的目标,现在市场上大部分破碎机锤头的材质为ZG65Mn,其主要化学成分如下:C:0.65%、Mn:l.1%、Si:0.44%、S:0.034%、P:0.036%,其力学性能参数为:抗拉强度:1145N/mm2,屈服强度:885N/mm2,延伸率:4%,强度:HRC54,断面收缩率:17%,用这种钢材制作的破碎机锤头耐磨性好,收到强力冲击时加工硬化能力强,但是抗拉强度低,韧性不好,容易损坏。Crusher equipment is widely used in mining, building materials, road construction, metallurgy, transportation and other engineering technology fields. Stones of various specifications used in roads and buildings are all crushed by large stones through crushers. Among them, the loss of the hammer head of the crusher is directly related to the cost of the work. How to prolong the life of the hammer head is the goal of many manufacturers. Now the material of most crusher hammer heads on the market is ZG65Mn, and its main chemical composition is as follows: C: 0.65%, Mn: l.1%, Si: 0.44%, S: 0.034%, P: 0.036%, its mechanical performance parameters are: tensile strength: 1145N/mm2, yield strength: 885N/mm2, elongation: 4 %, strength: HRC54, reduction of area: 17%, the crusher hammer head made of this steel has good wear resistance, strong work hardening ability when receiving strong impact, but low tensile strength, poor toughness, easy to damage .

发明内容Contents of the invention

发明目的:本发明的目的在于针对现有技术的不足,提供一种破碎机锤头及其制造方法,该破碎机锤头具有耐磨、强度高、韧性好,使用寿命长等特点。Object of the invention: The object of the present invention is to address the deficiencies of the prior art and provide a crusher hammer and its manufacturing method. The crusher hammer has the characteristics of wear resistance, high strength, good toughness, and long service life.

技术方案:本发明所述的一种破碎机锤头,其化学成份包括C:0.25-0.31%,Si:0.7-1.15%,Mn:1.4-1.8%,Ni:0.2-0.45%,Mo:0.2-0.3%,V:0.08-0.15%,Pb:0.06-0.15%,Zr:0.001-0.005%,Cu:0.01-0.03%,S:≤0.025%,P:≤0.025%,其余为Fe,以重量百分比计。Technical solution: A crusher hammer head according to the present invention, its chemical composition includes C: 0.25-0.31%, Si: 0.7-1.15%, Mn: 1.4-1.8%, Ni: 0.2-0.45%, Mo: 0.2 -0.3%, V: 0.08-0.15%, Pb: 0.06-0.15%, Zr: 0.001-0.005%, Cu: 0.01-0.03%, S: ≤0.025%, P: ≤0.025%, the rest is Fe, by weight percentage meter.

进一步地,上述破碎机锤头,化学成份包括C:0.28%,Si:0.9%,Mn:1.6%,Ni:0.35%,Mo:0.25%,V:0.12%,Pb:0.09%,Zr:0.003%,Cu:0.02%,S:0.02%,P:0.02%,其余为Fe,以重量百分比计。Further, the chemical composition of the above-mentioned crusher hammer includes C: 0.28%, Si: 0.9%, Mn: 1.6%, Ni: 0.35%, Mo: 0.25%, V: 0.12%, Pb: 0.09%, Zr: 0.003 %, Cu: 0.02%, S: 0.02%, P: 0.02%, and the rest is Fe, in weight percent.

上述破碎机锤头的制造方法,包括以下步骤:The manufacturing method of above-mentioned crusher hammer head, comprises the following steps:

(1)合金钢熔炼(1) Alloy steel smelting

用感应电炉熔炼合金钢,所述合金钢的化学成分包括:C:0.25-0.31%,Si:0.7-1.15%,Mn:1.4-1.8%,Ni:0.2-0.45%,Mo:0.2-0.3%,V:0.08-0.15%,Pb:0.06-0.15%,Zr:0.001-0.005%,Cu:0.01-0.03%,S:≤0.025%,P:≤0.025%,其余为Fe,重量百分比计,熔炼温度为1510-1560℃,出钢到精炼炉精炼,精炼炉内温度为1480-1530℃,浇铸前1-3分钟加入稀土材料,连铸合金钢坯,浇铸温度为1440-1480℃,浇完后保温20-30分钟,浇完后铸件缓冷到室温;Melting alloy steel by induction furnace, the chemical composition of the alloy steel includes: C: 0.25-0.31%, Si: 0.7-1.15%, Mn: 1.4-1.8%, Ni: 0.2-0.45%, Mo: 0.2-0.3% , V: 0.08-0.15%, Pb: 0.06-0.15%, Zr: 0.001-0.005%, Cu: 0.01-0.03%, S: ≤0.025%, P: ≤0.025%, the rest is Fe, by weight percentage, smelting The temperature is 1510-1560 ℃, the steel is tapped to the refining furnace for refining, the temperature in the refining furnace is 1480-1530 ℃, rare earth materials are added 1-3 minutes before casting, and the alloy billet is continuously cast, the casting temperature is 1440-1480 ℃, after pouring Keep warm for 20-30 minutes, and after pouring, the casting is slowly cooled to room temperature;

(2)退火处理(2) Annealing treatment

合金钢坯放入炉中以80-100℃/h速度加热到880-940℃保温2-3小时,炉冷到650-700℃保温3-5小时,炉冷到400-500℃出炉空冷;Put the alloy billet into the furnace and heat it at 80-100°C/h to 880-940°C for 2-3 hours, cool to 650-700°C for 3-5 hours, and cool to 400-500°C to take out the furnace and air cool;

(3)热轧锤头(3) Hot-rolled hammer head

将钢坯锯切,放入环形炉加热至1050-1200℃,按锤头形状轧制,每道次压下率控制在15-25%,冷却到240-300℃,再放入加热炉加热至960-1000℃,终轧定形,水冷至室温,探伤检验;Saw the steel billet, heat it in a ring furnace to 1050-1200°C, roll it according to the shape of the hammer head, control the reduction rate of each pass at 15-25%, cool it to 240-300°C, and then put it into the heating furnace and heat it to 960-1000℃, final rolling and setting, water cooling to room temperature, flaw detection inspection;

(4)淬火回火(4) Quenching and tempering

锤头经过机加工后进行淬火,将工件放入炉中快速加热到940-1000℃,保温3-4小时,出炉水淬,保持水温不超过45℃,淬火完毕后进炉回火,炉内温度180-230℃保温3-4小时取出空冷。After the hammer head is machined, it is quenched. Put the workpiece into the furnace and quickly heat it to 940-1000°C, keep it warm for 3-4 hours, and then quench it in water to keep the water temperature not exceeding 45°C. After quenching, it is tempered in the furnace. Insulate at 180-230°C for 3-4 hours, take out and air-cool.

本发明与现有技术相比,其有益效果是:本发明为了克服ZG65Mn钢材制作的破碎机锤头抗拉强度低,韧性不好,容易损坏的缺点,降低C含量,化学成分重量百分比改为0.25-0.31%,容易形成低碳板条马氏体,增加锤头强度和耐磨性,加入0.2-0.45%的镍以提高淬透性和奥氏体的稳定性,提高了锤头的韧性和耐冲击强度,加入0.08-0.15%的V的可细化奥氏体晶粒,均匀材质,提高钢材的屈服强度和抗拉强度,0.2-0.3%Mo的加入可以增加锤头强度和耐磨性,提高合金钢的淬透性和热强性,改善钢的冲击韧度,加入0.06-0.15%的Pb可以生成碱式碳酸铅薄膜,防止锤头内部氧化,有助于增加钢的硬度和强度,加入0.001-0.005%的Zr能够提高了锤头的强度和硬度,提高了锤头的硬度和抗张力,Pb和Zr在科学的熔炼和热处理工艺下融合能够改善了锤头的整体性能,既耐磨、硬度高,韧性又好,有意添加0.01-0.03%的Cu,起细化晶粒作用,提高了锤头的抗冲击性能,经过工艺改进,生产出来的破碎机锤头具有高韧性、耐冲击性,既具有较高硬度,耐磨性,提高了使用时间和工作安全性,有优越的工作可靠性。Compared with the prior art, the present invention has the beneficial effects that: in order to overcome the disadvantages of low tensile strength, poor toughness and easy damage of the crusher hammer head made of ZG65Mn steel, the present invention reduces the C content, and the weight percentage of the chemical composition is changed to 0.25-0.31%, easy to form low-carbon lath martensite, increase the strength and wear resistance of the hammer head, add 0.2-0.45% nickel to improve hardenability and austenite stability, and improve the toughness of the hammer head And impact strength, adding 0.08-0.15% of V can refine austenite grains, uniform material, improve the yield strength and tensile strength of steel, and adding 0.2-0.3% Mo can increase hammer head strength and wear resistance Improve the hardenability and heat strength of alloy steel, improve the impact toughness of steel, add 0.06-0.15% Pb to form a basic lead carbonate film, prevent internal oxidation of the hammer head, and help increase the hardness and Strength, adding 0.001-0.005% Zr can improve the strength and hardness of the hammer head, improve the hardness and tensile strength of the hammer head, and the fusion of Pb and Zr under the scientific smelting and heat treatment process can improve the overall performance of the hammer head. It is wear-resistant, high in hardness and good in toughness. 0.01-0.03% Cu is intentionally added to refine the grain and improve the impact resistance of the hammer. After process improvement, the produced crusher hammer has high toughness. , Impact resistance, not only has high hardness and wear resistance, but also improves the service time and work safety, and has superior work reliability.

本发明通过科学控制锤头的化学成分、熔炼、浇铸工艺和热处理工艺,使破碎机锤头从表面到内部为低碳板条马氏体组织,即有高强度又有好的韧性,经检测,本发明所述的破碎机锤头在室温下抗拉强度≥1285N/mm2,屈服强度≥1085N/mm2,延伸率≥6.3%,洛氏硬度≥HRC54,断面收缩率≥22%,使用时间提高2-3倍。The invention scientifically controls the chemical composition, smelting, casting process and heat treatment process of the hammer head, so that the hammer head of the crusher is a low-carbon lath martensitic structure from the surface to the inside, which has high strength and good toughness. After testing , the hammer head of the crusher according to the present invention has a tensile strength of ≥1285N/mm2 at room temperature, a yield strength of ≥1085N/mm2, an elongation of ≥6.3%, a Rockwell hardness of ≥HRC54, a reduction of area of ≥22%, and a longer service life. 2-3 times.

具体实施方式Detailed ways

下面对本发明技术方案进行详细说明,但是本发明的保护范围不局限于所述实施例。The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

实施例1:一种破碎机锤头,其化学成份包括C:0.28%,Si:0.9%,Mn:1.6%,Ni:0.35%,Mo:0.25%,V:0.12%,Pb:0.09%,Zr:0.003%,Cu:0.02%,S:0.02%,P:0.02%,其余为Fe,以重量百分比计。Example 1: A crusher hammer, its chemical composition includes C: 0.28%, Si: 0.9%, Mn: 1.6%, Ni: 0.35%, Mo: 0.25%, V: 0.12%, Pb: 0.09%, Zr: 0.003%, Cu: 0.02%, S: 0.02%, P: 0.02%, and the rest is Fe, in percent by weight.

上述破碎机锤头的制造方法,包括以下步骤:The manufacturing method of above-mentioned crusher hammer head, comprises the following steps:

(1)合金钢熔炼(1) Alloy steel smelting

用感应电炉熔炼合金钢,所述合金钢的化学成分包括:C:0.28%,Si:0.9%,Mn:1.6%,Ni:0.35%,Mo:0.25%,V:0.12%,Pb:0.09%,Zr:0.003%,Cu:0.02%,S:0.02%,P:0.02%,其余为Fe,以重量百分比计,熔炼温度为1540℃,出钢到精炼炉精炼,精炼炉内温度为1500℃,浇铸前2分钟加入稀土材料,连铸合金钢坯,浇铸温度为1460℃,浇完后保温25分钟,浇完后铸件缓冷到室温;The alloy steel is smelted by an induction furnace, and the chemical composition of the alloy steel includes: C: 0.28%, Si: 0.9%, Mn: 1.6%, Ni: 0.35%, Mo: 0.25%, V: 0.12%, Pb: 0.09% , Zr: 0.003%, Cu: 0.02%, S: 0.02%, P: 0.02%, the rest is Fe, calculated by weight percentage, the melting temperature is 1540°C, the steel is tapped to the refining furnace for refining, and the temperature in the refining furnace is 1500°C , adding rare earth materials 2 minutes before casting, continuous casting alloy billet, casting temperature is 1460 ℃, keep warm for 25 minutes after pouring, and slowly cool the casting to room temperature after pouring;

(2)退火处理(2) Annealing treatment

合金钢坯放入炉中以90℃/h速度加热到920℃保温2小时,炉冷到680℃保温4小时,炉冷到450℃出炉空冷;Put the alloy billet into the furnace and heat it to 920°C at a rate of 90°C/h for 2 hours, then cool it to 680°C and hold it for 4 hours, then cool it to 450°C and leave the furnace for air cooling;

(3)热轧锤头(3) Hot-rolled hammer head

将钢坯锯切,放入环形炉加热至1150℃,按锤头形状轧制,每道次压下率控制在20%,冷却到265℃,再放入加热炉加热至980℃,终轧定形,水冷至室温,探伤检验;Saw the billet, put it into the ring furnace and heat it to 1150°C, roll it according to the shape of the hammer head, control the reduction rate of each pass at 20%, cool it to 265°C, put it into the heating furnace and heat it to 980°C, and finally roll it to shape , water cooled to room temperature, flaw detection inspection;

(4)淬火回火(4) Quenching and tempering

锤头经过机加工后进行淬火,将工件放入炉中以100℃/h速度加热到980℃,保温3小时,出炉水淬,保持水温40℃,淬火完毕后进炉回火,炉内温度200℃保温3小时取出空冷。After the hammer head is machined, it is quenched. Put the workpiece into the furnace and heat it up to 980°C at a rate of 100°C/h, keep it warm for 3 hours, and then quench it in water to keep the water temperature at 40°C. After quenching, it is put into the furnace and tempered. Incubate at ℃ for 3 hours, take out and air-cool.

本实施例所述的锤头的力学性能为:抗拉强度:1355N/mm2,屈服强度:1095N/mm2,延伸率:8%,洛氏硬度:HRC55,断面收缩率:23%,使用时间提高2.6倍。The mechanical properties of the hammer head described in this embodiment are: tensile strength: 1355N/mm2, yield strength: 1095N/mm2, elongation: 8%, Rockwell hardness: HRC55, reduction of area: 23%, and service time is improved 2.6 times.

实施例2,一种破碎机锤头,其化学成份包括C:0.25%,Si:0.7%,Mn:1.4%,Ni:0.2%,Mo:0.2%,V:0.08%,Pb:0.06%,Zr:0.001%,Cu:0.01%,S:0.015%,P:0.015%,其余为Fe,以重量百分比计。Example 2, a crusher hammer, its chemical composition includes C: 0.25%, Si: 0.7%, Mn: 1.4%, Ni: 0.2%, Mo: 0.2%, V: 0.08%, Pb: 0.06%, Zr: 0.001%, Cu: 0.01%, S: 0.015%, P: 0.015%, and the rest is Fe, in percent by weight.

上述破碎机锤头的制造方法,包括以下步骤:The manufacturing method of above-mentioned crusher hammer head, comprises the following steps:

(1)合金钢熔炼(1) Alloy steel smelting

用感应电炉熔炼合金钢,所述合金钢的化学成分包括:C:0.25%,Si:0.7%,Mn:1.4%,Ni:0.2%,Mo:0.2%,V:0.08%,Pb:0.06%,Zr:0.001%,Cu:0.01%,S:0.015%,P:0.015%,其余为Fe,以重量百分比计,熔炼温度为1510℃,出钢到精炼炉精炼,精炼炉内温度为1480℃,浇铸前1分钟加入稀土材料,连铸合金钢坯,浇铸温度为1440℃,浇完后保温20分钟,浇完后铸件缓冷到室温;The alloy steel is smelted by an induction furnace, and the chemical composition of the alloy steel includes: C: 0.25%, Si: 0.7%, Mn: 1.4%, Ni: 0.2%, Mo: 0.2%, V: 0.08%, Pb: 0.06% , Zr: 0.001%, Cu: 0.01%, S: 0.015%, P: 0.015%, the rest is Fe, calculated by weight percentage, the melting temperature is 1510°C, the steel is tapped to the refining furnace for refining, and the temperature in the refining furnace is 1480°C , add rare earth material 1 minute before casting, continuously cast alloy billet, casting temperature is 1440 ℃, keep warm for 20 minutes after pouring, and slowly cool the casting to room temperature after pouring;

(2)退火处理(2) Annealing treatment

合金钢坯放入炉中以80℃/h速度加热到880℃保温2小时,炉冷到650℃保温3小时,炉冷到400℃出炉空冷;Put the alloy steel billet into the furnace and heat it at 80°C/h to 880°C for 2 hours, cool to 650°C for 3 hours, and cool to 400°C to take out the furnace and air cool;

(3)热轧锤头(3) Hot-rolled hammer head

将钢坯锯切,放入环形炉加热至1050℃,按锤头形状轧制,每道次压下率控制在15%,冷却到240℃,再放入加热炉加热至960℃,终轧定形,水冷至室温,探伤检验;Saw the billet, put it into the ring furnace and heat it to 1050°C, roll it according to the shape of the hammer head, control the reduction rate of each pass at 15%, cool it to 240°C, put it into the heating furnace and heat it to 960°C, and finally roll it to shape , water cooled to room temperature, flaw detection inspection;

(4)淬火回火(4) Quenching and tempering

锤头经过机加工后进行淬火,将工件放入炉中以80℃/h速度加热到940℃,保温3小时,出炉水淬,保持水温35℃,淬火完毕后进炉回火,炉内温度180℃保温3小时取出空冷。After the hammer head is machined, it is quenched. Put the workpiece into the furnace and heat it to 940°C at a rate of 80°C/h, keep it warm for 3 hours, and then quench it in water to keep the water temperature at 35°C. Incubate at ℃ for 3 hours, take out and air-cool.

本实施例所述的锤头的力学性能为:抗拉强度:1320N/mm2,屈服强度:1120N/mm2,延伸率:9%,洛氏硬度:HRC54,断面收缩率:26%,使用时间提高2.1倍。The mechanical properties of the hammer head described in this embodiment are: tensile strength: 1320N/mm2, yield strength: 1120N/mm2, elongation: 9%, Rockwell hardness: HRC54, reduction of area: 26%, and service time is improved 2.1 times.

实施例3,一种破碎机锤头,其化学成份包括C:0.31%,Si:1.15%,Mn:1.8%,Ni:0.45%,Mo:0.3%,V:0.15%,Pb:0.15%,Zr:0.005%,Cu:0.03%,S:0.025%,P:0.025%,其余为Fe,以重量百分比计。Embodiment 3, a crusher hammer, its chemical composition includes C: 0.31%, Si: 1.15%, Mn: 1.8%, Ni: 0.45%, Mo: 0.3%, V: 0.15%, Pb: 0.15%, Zr: 0.005%, Cu: 0.03%, S: 0.025%, P: 0.025%, and the rest is Fe, in weight percent.

上述破碎机锤头的制造方法,包括以下步骤:The manufacturing method of above-mentioned crusher hammer head, comprises the following steps:

(1)合金钢熔炼(1) Alloy steel smelting

用感应电炉熔炼合金钢,所述合金钢的化学成分包括:C:0.31%,Si:1.15%,Mn:1.8%,Ni:0.45%,Mo:0.3%,V:0.15%,Pb:0.15%,Zr:0.005%,Cu:0.03%,S:0.025%,P:0.025%,其余为Fe,以重量百分比计,熔炼温度为1560℃,出钢到精炼炉精炼,精炼炉内温度为1530℃,浇铸前3分钟加入稀土材料,连铸合金钢坯,浇铸温度为1480℃,浇完后保温30分钟,浇完后铸件缓冷到室温;The alloy steel is smelted by an induction furnace, and the chemical composition of the alloy steel includes: C: 0.31%, Si: 1.15%, Mn: 1.8%, Ni: 0.45%, Mo: 0.3%, V: 0.15%, Pb: 0.15% , Zr: 0.005%, Cu: 0.03%, S: 0.025%, P: 0.025%, the rest is Fe, calculated by weight percentage, the melting temperature is 1560°C, the steel is tapped to the refining furnace for refining, and the temperature in the refining furnace is 1530°C , add rare earth materials 3 minutes before casting, continuously cast alloy billet, casting temperature is 1480 ℃, keep warm for 30 minutes after pouring, and slowly cool the casting to room temperature after pouring;

(2)退火处理(2) Annealing treatment

合金钢坯放入炉中以100℃/h速度加热到940℃保温3小时,炉冷到700℃保温5小时,炉冷到500℃出炉空冷;Put the alloy billet into the furnace and heat it at 100°C/h to 940°C for 3 hours, cool it to 700°C for 5 hours, and cool it to 500°C to take out the furnace and air cool;

(3)热轧锤头(3) Hot-rolled hammer head

将钢坯锯切,放入环形炉加热至1200℃,按锤头形状轧制,每道次压下率控制在25%,冷却到300℃,再放入加热炉加热至1000℃,终轧定形,水冷至室温,探伤检验;Saw the billet, put it into a ring furnace and heat it to 1200°C, roll it according to the shape of the hammer head, control the reduction rate of each pass at 25%, cool it to 300°C, put it into the heating furnace and heat it to 1000°C, and finally roll it to shape , water cooled to room temperature, flaw detection inspection;

(4)淬火回火(4) Quenching and tempering

锤头经过机加工后进行淬火,将工件放入炉中以100℃/h速度加热到1000℃,保温4小时,出炉水淬,保持水温45℃,淬火完毕后进炉回火,炉内温度230℃保温4小时取出空冷。The hammer head is quenched after machining, put the workpiece into the furnace and heat it up to 1000°C at a rate of 100°C/h, keep it warm for 4 hours, and then quench it in water to keep the water temperature at 45°C. Insulate at ℃ for 4 hours, take out and air-cool.

本实施例所述的锤头的力学性能为:抗拉强度:1285N/mm2,屈服强度:1085N/mm2,延伸率:6.3%,洛氏硬度:HRC54,断面收缩率:22%,使用时间提高3倍。The mechanical properties of the hammer head described in this embodiment are: tensile strength: 1285N/mm2, yield strength: 1085N/mm2, elongation: 6.3%, Rockwell hardness: HRC54, reduction of area: 22%, and service time is improved 3 times.

如上所述,尽管参照特定的优选实施例已经表示和表述了本发明,但其不得解释为对本发明自身的限制。在不脱离所附权利要求定义的本发明的精神和范围前提下,可对其在形式上和细节上作出各种变化。As stated above, while the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (3)

1. a grinder hammerhead, is characterized in that: its Chemical Composition comprises C:0.25-0.31%, Si:0.7-1.15%, Mn:1.4-1.8%, Ni:0.2-0.45%, Mo:0.2-0.3%, V:0.08-0.15%, Pb:0.06-0.15%, Zr:0.001-0.005%, Cu:0.01-0.03%, S :≤0.025%, P :≤0.025%, all the other are Fe, by weight percentage.
2. a kind of grinder hammerhead according to claim 1, is characterized in that: its Chemical Composition comprises C:0.28%, Si:0.9%, Mn:1.6%, Ni:0.35%, Mo:0.25%, V:0.12%, Pb:0.09%, Zr:0.003%, Cu:0.02%, S:0.02%, P:0.02%, all the other are Fe, by weight percentage.
3. profit requires a manufacture method for the grinder hammerhead described in 1 or 2, it is characterized in that: comprise the following steps:
(1) steel alloy melting
With induction furnace molten alloy steel, the chemical composition of described steel alloy comprises: C:0.25-0.31%, Si:0.7-1.15%, Mn:1.4-1.8%, Ni:0.2-0.45%, Mo:0.2-0.3%, V:0.08-0.15%, Pb:0.06-0.15%, Zr:0.001-0.005%, Cu:0.01-0.03%, S :≤0.025%, P :≤0.025%, all the other are Fe, by weight percentage, smelting temperature is 1510-1560 ℃, tapping is to refining furnace refining, in refining furnace, temperature is 1480-1530 ℃, before casting, within 1-3 minute, add rare earth material, continuous casting alloy steel base, pouring temperature is 1440-1480 ℃, water rear insulation 20-30 minute, water rear foundry goods slow cooling to room temperature,
(2) anneal
Alloy billet is put into stove and is heated to 880-940 ℃ of insulation 2-3 hour with 80-100 ℃/h speed, and stove is as cold as 650-700 ℃ of insulation 3-5 hour, and stove is as cold as the 400-500 ℃ of air cooling of coming out of the stove;
(3) hot rolling tup
By steel billet sawing, put into ring furnace and be heated to 1050-1200 ℃, by hammer-shaped rolling, every time draft is controlled at 15-25%, is cooled to 240-300 ℃, then puts into process furnace and be heated to 960-1000 ℃, finish to gauge setting, water-cooled is to room temperature, flaw detection;
(4) Q-tempering
Tup quenches after machining, and workpiece is put into stove and be heated rapidly to 940-1000 ℃, insulation 3-4 hour, the shrend of coming out of the stove, keeps water temperature to be no more than 45 ℃, the complete laggard stove tempering of quenching, in stove, air cooling is taken out in temperature 180-230 ℃ of insulation for 3-4 hour.
CN201310574782.5A 2013-11-15 2013-11-15 A kind of manufacture method of grinder hammerhead Expired - Fee Related CN103898421B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310574782.5A CN103898421B (en) 2013-11-15 2013-11-15 A kind of manufacture method of grinder hammerhead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310574782.5A CN103898421B (en) 2013-11-15 2013-11-15 A kind of manufacture method of grinder hammerhead

Publications (2)

Publication Number Publication Date
CN103898421A true CN103898421A (en) 2014-07-02
CN103898421B CN103898421B (en) 2016-04-06

Family

ID=50989986

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310574782.5A Expired - Fee Related CN103898421B (en) 2013-11-15 2013-11-15 A kind of manufacture method of grinder hammerhead

Country Status (1)

Country Link
CN (1) CN103898421B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105039655A (en) * 2015-07-31 2015-11-11 共享铸钢有限公司 Thermal treatment method suitable for cone crusher casting
CN106521310A (en) * 2016-10-27 2017-03-22 马钢(集团)控股有限公司 Steel used for quartering hammer piston rods, and thermal treatment method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293716A (en) * 1999-01-28 2001-05-02 住友金属工业株式会社 Machine structural steel product
CN1714159A (en) * 2002-11-19 2005-12-28 工业钢克鲁梭公司 Method for making an abrasion resistant steel plate and plate obtained

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293716A (en) * 1999-01-28 2001-05-02 住友金属工业株式会社 Machine structural steel product
CN1714159A (en) * 2002-11-19 2005-12-28 工业钢克鲁梭公司 Method for making an abrasion resistant steel plate and plate obtained

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105039655A (en) * 2015-07-31 2015-11-11 共享铸钢有限公司 Thermal treatment method suitable for cone crusher casting
CN105039655B (en) * 2015-07-31 2017-06-16 共享铸钢有限公司 A kind of heat treatment method suitable for gyratory crusher casting
CN106521310A (en) * 2016-10-27 2017-03-22 马钢(集团)控股有限公司 Steel used for quartering hammer piston rods, and thermal treatment method thereof

Also Published As

Publication number Publication date
CN103898421B (en) 2016-04-06

Similar Documents

Publication Publication Date Title
CN104388821B (en) TiC particulate reinforcement type heterogeneous structure high-ductility wear-resisting steel plate and manufacture method
CN101691640B (en) High strength low alloy wear resistance steel plate and preparation method thereof
CN104357758B (en) A superhard particle reinforced martensitic wear-resistant steel plate and its manufacturing method
CN102443741B (en) Manufacturing method of steel balls for ball mill
CN104451421B (en) High-strength high-toughness bimetallic strip saw blade back steel and preparation method thereof
JP5659758B2 (en) TMCP-Temper type high-strength steel sheet with excellent drop weight characteristics after PWHT that combines excellent productivity and weldability
CN105331890B (en) A kind of method that press quenching produces high tenacity 5Ni steel cut deals
CN102676947B (en) Welded structural steel and manufacturing method thereof
CN103008062A (en) Low-carbon high-chromium composite swing hammer
CN118653096A (en) A kind of eutectoid carbon cold heading steel wire rod for 13.9 grade bolts and its manufacturing method
CN107130172A (en) The overall constrictive type high tenacity of 400HBW grades of Brinell hardness easily welds special thick wear-resisting steel plate and its manufacture method
CN102418044B (en) Steel for steel balls and method for manufacturing steel balls
CN103993233B (en) A kind of long-life die casting die steel and the process of manufacture magnalium compression mod
CN110699597A (en) A kind of hot work die steel and preparation method thereof
CN116121644A (en) High-toughness mine disc saw blade steel plate and manufacturing method thereof
CN105220073B (en) Hot-rolled strip steel for rake blades, production method and rake blade treatment method
CN106893941A (en) A kind of low-alloy wear-resistant steel and its heat treatment method
CN103789655A (en) Method for producing Nb alloying high-strength wear-resisting steel plate through on-line quenching
CN103898421B (en) A kind of manufacture method of grinder hammerhead
CN105624577B (en) The manufacture method of Fire-resistant Steels Used in Buildings material
CN105132814B (en) Strip steel for rake blades, production method and heat treatment method for rake blades
CN111893393B (en) Mo-Ti alloy wear-resistant medium manganese steel and preparation method thereof
CN106319376A (en) Novel low welding crack sensitivity high strength steel plate
CN104946973B (en) A low-carbon medium-manganese medium-thick plate with high strength, toughness and plasticity and preparation method thereof
CN107267880A (en) A kind of high cracking resistance wear-resistant bainite Jaw plate steel, Jaw plate and preparation method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP02 Change in the address of a patent holder

Address after: 210093 Nanjing University Science Park, 22 Hankou Road, Gulou District, Nanjing City, Jiangsu Province

Patentee after: Southeast University

Address before: No. 99, Linghu Avenue, Wuxi, Jiangsu Province, Jiangsu

Patentee before: Southeast University

CP02 Change in the address of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160406

Termination date: 20191115

CF01 Termination of patent right due to non-payment of annual fee