CN102489656A - Bearing forging production process by blanking long bar at 900 DEG C and continuously heating to 1050 DEG C at intermediate frequency - Google Patents

Bearing forging production process by blanking long bar at 900 DEG C and continuously heating to 1050 DEG C at intermediate frequency Download PDF

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Publication number
CN102489656A
CN102489656A CN 201110396953 CN201110396953A CN102489656A CN 102489656 A CN102489656 A CN 102489656A CN 201110396953 CN201110396953 CN 201110396953 CN 201110396953 A CN201110396953 A CN 201110396953A CN 102489656 A CN102489656 A CN 102489656A
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deg
blank
press
heating
bar
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CN 201110396953
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Chinese (zh)
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倪林
方进
王高燮
马桢明
黄红兵
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合肥市远大轴承锻造有限公司
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Abstract

The invention discloses a bearing forging production process by blanking a long bar at 900 DEG C and continuously heating to 1050 DEG C at intermediate frequency, which comprises the following steps: (1) heating the long round steel bar with the weight of 0.8 to 4 kg and the diameter of 50mm to 80mm to 850 to 950 DEG C at intermediate frequency, and then blanking the long round steel rod on a press into a bar section with the required weight; (2) continuously heating the bar section to the initial forging temperature of between 1050 and 1150 DEG C at intermediate frequency; (3) under the action of upper upsetting and lower upsetting of the press, reducing the height of the heated bar section and increasing the cross area of the heated bar section; (4) separating the upset bar section into a large annular blank and a small annular blank, and then carrying out semi-hole reaming, bottom cutting and planishing of the upset small blank; and (5) carrying out ring rolling of the blanks by a ring rolling machine, and calibrating by the press. According to the production process, the continuous heating of the bar section replaces the process that the blanked bar section is cooled to 20 DEG C and then is reheated in a common heating process, accordingly, the production energy is saved. And different sizes of ring bearing forgings can be simultaneously produced, and the material utilization rate is improved.

Description

长棒料900° C切料连续中频加热至1050° C轴承锻造生产工艺技术领域[0001] 本发明属于轴承锻造技术领域,具体涉及一种长棒料900°C切料连续中频加热至1050°C轴承锻造生产工艺。 Long bar 900 ° C is heated to an intermediate frequency blanking continuous production process BACKGROUND bearing Forging 1050 ° C [0001] The present invention belongs to the technical field of forging a bearing, particularly to a long bar 900 ° C continuously cut material was heated to 1050 ° IF C bearing forging production process. 背景技术[0002] 轴承毛坯加工是轴承生产的第一道工序,首先是采用压力机/油压机等设备将长棒料进行剪切,其次是将剪切后的料段进行加热,目前最普遍使用的是采用燃气加热或者中频感应加热,加热完毕后进行压力机锻造,最后经整形及扩展之后进行冷却,使锻件获得良好的组织。 [0002] Bearing rough processing is the first process of production of the bearing, the first is the use of a press / hydraulic machines and other equipment for shearing a long bar, followed by cutting the material after the heating period, the most commonly used It is the use of induction heating or gas heating, a press forging after heating is completed, and finally cooling the shaping and expansion after the forging good organization. 在生产过程中,加热工序所耗费的能源最为巨大,所以,寻找一种新的锻造加工工艺方法,对降低生产成本具有重大意义。 In the production process, the heating process consumes most of the energy giant, therefore, to find a new forging process method, is of great significance to reduce production costs. 发明内容[0003] 本发明的目的在于提供一种材料利用率高、节约能源、生产成本小的长棒料900°C 切料连续中频加热至1050°C轴承锻造生产工艺。 SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a material with a high efficiency, energy saving, small production cost of the long bar 900 ° C continuously cut material was heated to 1050 ° C intermediate bearing forging process. [0004] 本发明的解决技术方案是:一种长棒料900°C切料连续中频加热至1050°C轴承锻造生产工艺,其特征在于采用以下步骤:[0005] (1)将重量在0. 8〜4千克、直径在50mm〜80mm的圆钢长棒料中频加热至850〜 950°C,再将该圆钢长棒料在压力机上下料成所需重量料段;[0006] (2)将料段连续中频加热至1050-1150°C的始锻温度;[0007] (3)将加热完成后的料段在压力机上镦及下镦的作用下,减小料段高度并增大其横截面;[0008] (4)将镦粗后的料段分离为环形大毛坯及小毛坯,再将小毛坯镦饼后挤半孔、切底压平;[0009] (5)将上述毛坯通过扩孔机扩孔,之后通过压力机进行整径。 [0004] The technical solution of the present invention is: A long bar 900 ° C continuously cut material was heated to 1050 ° C intermediate bearing forging process, wherein the following steps: [0005] (1) The weight 0 . 8~4 kg 50mm~80mm diameter round steel bar long pilot batch was heated to 850~ 950 ° C, then the length of round steel bar in a press to a weight materials tending period required; [0006] ( 2) a stretch of consecutive frequency heating material to 1050-1150 ° C the initial forging temperature; [0007] (3) heating the feed period after the completion of upsetting in the press and the upsetting effect, and by reducing the height of the feed section large cross-section; [0008] (4) after the feed zone upsetting blank separating large and small annular blank, and then after a small cake extruding upsetting blank semi-holes, cut at the end flattening; [0009] (5) He said blank by reaming machine reamer, followed by the entire path through the press. [0010] 本发明的技术解决方案可采用以下工艺步骤:[0011] (1)将重量在0.8〜4千克、直径在50mm〜80mm的圆钢长棒料在500KW的中频感应炉上加热至850〜950°C,再将该圆钢长棒料在160吨位的压力机上下料成所需重量料段;[0012] (2)将料段在500KW的中频感应炉中连续中频加热至1050-1150°C的始锻温度;[0013] (3)将加热完成后的料段在160吨位的压力机上镦及下镦的作用下,减小料段高度并增大其横截面;[0014] (4)将镦粗后的料段分离为环形大毛坯及小毛坯,再将小毛坯镦饼后挤半孔、切底压平;[0015] (5)将上述毛坯通过扩孔机扩孔,之后通过100吨位的压力机进行整径。 [0010] Technical Solution The present invention may employ the following process steps: [0011] (1) 0.8~4 weight in kilograms, the diameter of the heating to 850 in a medium frequency induction furnace 500KW in 50mm~80mm long round steel bar ~950 ° C, then the length of round steel bar 160 in a press tonnage to the desired weight of material loading and unloading section; [0012] (2) a stretch of consecutive intermediate material was heated to 1050 in a medium frequency induction furnace 500KW initial forging temperature of 1150 ° C; [0013] (3) heating the feed period after the completion of upsetting in the press tonnage at 160 and under the action of upsetting, to reduce the height of the feeding section and increases in cross-section; [0014] (4) after the feed zone upsetting blank separating large and small annular blank, and then after a small cake extruding upsetting blank semi-holes, cut at the end flattening; [0015] (5) through the said blank reamer reaming machine , followed by reeling 100 by a press tonnage. [0016] 本发明通过采用对料段连续加热代替了普通加热工序中,将下料后的料段冷却至20°C后再重新加热的工艺,大大节约了生产能源。 [0016] The present invention, by using continuous heating of the feed section instead of conventional heating step, the feed section after cutting was cooled to 20 ° C and then reheated to the process, significant savings in energy production. 并且可以同时生产不同大小的环形轴承锻件,提高了材料利用率。 And an annular bearing forging can be produced simultaneously in different sizes, improved material utilization. 附图说明[0017] 图1是本发明的工艺流程示意图。 BRIEF DESCRIPTION [0017] FIG. 1 is a schematic process flow diagram of the present invention. 具体实施方式[0018] 以下结合具体实施例,对本发明做进一步说明。 DETAILED DESCRIPTION [0018] The following detailed embodiments of the present invention will be further described. 应理解,以下实施例仅用于说明本发明而非用于限制本发明的范围。 It should be understood, the following examples serve only to illustrate embodiments of the present invention is not intended to limit the scope of the present invention. [0019] 1.中频加热下料:将重量在0. 8〜4千克、直径在50mm〜80mm的圆钢长棒料在500KW的中频感应炉上加热至850〜950°C,再将该圆钢长棒料在160吨位的压力机上下料成所需重量料段。 [0019] 1. the expected frequency heating: 8~4 0.5 kg in weight, diameter and heated to 850~950 ° C in a medium frequency induction furnace 500KW in 50mm~80mm long round steel bar, then the circle long steel bar 160 in a press to a weight tonnage feed unloading desired period. [0020] 2.加热:将料段连续中频加热至1050_1150°C的始锻温度。 [0020] 2. Heating: heating the intermediate material to a stretch of consecutive initial forging temperature of 1050_1150 ° C. 本工序通过采用连续加热代替了普通加热工序中,将下料后的料段冷却至20°C后再重新加热的工艺。 This step is performed by heating instead of a common continuous heating step, the feed section after cutting was cooled to 20 ° C and then re-heating process. [0021] 3.镦饼:将加热完成后的料段在160吨位的压力机上镦及下镦的作用下,减小料段高度并增大其横截面。 [0021] 3. upsetting cake: the heating section after cutting is completed on the upsetting press tonnage and 160 under the heading action, reducing the height of the feed section and increases in cross-section. [0022] 4.分套:将镦粗后的料段分离为环形大毛坯及小毛坯,再将小毛坯镦饼后挤半孔、切底压平。 [0022] 4 sub-sets: the feed section after upsetting rough and large separation of small annular blank, and then after a small cake extruding upsetting blank semi-holes, undercut flattened. [0023] 5.扩孔及整径:将上述毛坯通过扩孔机扩孔,之后通过100吨位的压力机进行整径。 [0023] 5. The reamer and reeling: the said blank, followed by the entire path 100 by a press tonnage by reaming machine reaming.

Claims (2)

  1. 1. 一种长棒料900°c切料连续中频加热至1050°C轴承锻造生产工艺,其特征在于:(1)将重量在0. 8〜4千克、直径在50mm〜80mm的圆钢长棒料中频加热至850〜 950°C,再将该圆钢长棒料在压力机上下料成所需重量料段;(2)将料段连续中频加热至1050-1150°C的始锻温度;(3)将加热完成后的料段在压力机上镦及下镦的作用下,减小料段高度并增大其横截(4)将镦粗后的料段分离为环形大毛坯及小毛坯,再将小毛坯镦饼后挤半孔、切底压平;(5)将上述毛坯通过扩孔机扩孔,之后通过压力机进行整径。 A long bar 900 ° c blanking continuous frequency heating to 1050 ° C bearing forging process, characterized in that: (1) A 0.5 wt 8~4 kg, a long round bar diameter 50mm~80mm frequency feed rod was heated to 850~ 950 ° C, then the length of round steel bar in a press to a weight materials tending period required; (2) continuously feeding section was heated to 1050-1150 ° C intermediate the initial forging temperature ; after the cutting section (3) is heated and completed in the press under the heading upsetting effects, to reduce the height of the material and increases its cross section (4) after the feed zone upsetting blank separating large and small ring blank, the blank and then forging small cake extruding semi-holes, cut at the end flattening; (5) the said blank by reaming machine reamer, followed by the entire path through the press.
  2. 2.根据权利要求1所述的一种长棒料900°C切料连续中频加热至1050°C轴承锻造生产工艺,其特征在于:(1)将重量在0. 8〜4千克、直径在50mm〜80mm的圆钢长棒料在500KW的中频感应炉上加热至850〜950°C,再将该圆钢长棒料在160吨位的压力机上下料成所需重量料段;(2)将料段在500KW的中频感应炉中连续中频加热至1050-1150°C的始锻温度;(3)将加热完成后的料段在160吨位的压力机上镦及下镦的作用下,减小料段高度并增大其横截面;(4)将镦粗后的料段分离为环形大毛坯及小毛坯,再将小毛坯镦饼后挤半孔、切底压平;(5)将上述毛坯通过扩孔机扩孔,之后通过100吨位的压力机进行整径。 2. According to one of the long bar as claimed in claim 1, blanking consecutive 900 ° C was heated to 1050 ° C intermediate bearing forging process, characterized in that: (1) 0.5 8~4 kg in weight, diameter 50mm~80mm long round steel bar was heated in a medium frequency induction furnace 500KW to 850~950 ° C, then the length of round steel bar 160 in a press to a weight tonnage feed unloading period required; (2) the material stretch of consecutive frequency heating to 1050-1150 ° C in a medium frequency induction furnace 500KW initial forging temperature; (3) heating the feed period after the completion of upsetting and forging action of the press 160 on the tonnage, reduced increasing the height of the feed section and the cross section thereof; (4) after the feed zone upsetting blank separating large and small annular blank, and then after a small cake extruding upsetting blank semi-holes, cut at the end flattening; (5) the above blank, followed by the entire path 100 by a press tonnage by reaming machine reaming.
CN 201110396953 2011-12-02 2011-12-02 Bearing forging production process by blanking long bar at 900 DEG C and continuously heating to 1050 DEG C at intermediate frequency CN102489656A (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN102764968A (en) * 2012-06-26 2012-11-07 昌利锻造有限公司 Idler shaft processing method
CN102861857A (en) * 2012-09-14 2013-01-09 合肥市远大轴承锻造有限公司 Rolling bearing forging process
CN103286534A (en) * 2012-07-31 2013-09-11 宁波圣菲机械制造有限公司 Perforation cartridge case manufacturing process
CN103350177A (en) * 2013-07-08 2013-10-16 芜湖市明远轴承锻造有限公司 Bearing twice-broaching process
CN106736293A (en) * 2016-12-29 2017-05-31 常熟市常轴轴承有限公司 Forging technology of high-precision forklift bearing ring

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CN101417379A (en) * 2007-10-27 2009-04-29 襄阳汽车轴承股份有限公司 Tapered roller bearing ring double extension-sleeve forging technique
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102764968A (en) * 2012-06-26 2012-11-07 昌利锻造有限公司 Idler shaft processing method
CN103286534A (en) * 2012-07-31 2013-09-11 宁波圣菲机械制造有限公司 Perforation cartridge case manufacturing process
CN103286534B (en) * 2012-07-31 2016-06-15 宁波圣菲机械制造有限公司 A perforating shell manufacturing process
CN102861857A (en) * 2012-09-14 2013-01-09 合肥市远大轴承锻造有限公司 Rolling bearing forging process
CN103350177A (en) * 2013-07-08 2013-10-16 芜湖市明远轴承锻造有限公司 Bearing twice-broaching process
CN106736293A (en) * 2016-12-29 2017-05-31 常熟市常轴轴承有限公司 Forging technology of high-precision forklift bearing ring

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