CN105331838A - Preparation method of gradient alloy - Google Patents

Preparation method of gradient alloy Download PDF

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Publication number
CN105331838A
CN105331838A CN 201510633274 CN201510633274A CN105331838A CN 105331838 A CN105331838 A CN 105331838A CN 201510633274 CN201510633274 CN 201510633274 CN 201510633274 A CN201510633274 A CN 201510633274A CN 105331838 A CN105331838 A CN 105331838A
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donor
receptor
content
preparation method
workpiece
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CN 201510633274
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Chinese (zh)
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陈军
金益民
吴晓娜
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浙江恒成硬质合金有限公司
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/005Making alloys with holding in the range of the solid-liquid phase

Abstract

The invention discloses a preparation method of gradient alloy. According to the preparation method, a donor and a receptor are included, the donor is an object of which the binding phase content needs to be reduced, and the receptor is an object of which the binding phase content needs to be increased. The preparation method sequentially includes the following steps that firstly, the end face of the end, of which the binding phase content needs to be increased, of the receptor is ground, surface roughness is lowered, the donor is machined to be in the shape matched with the end, of which the binding phase content needs to be increased, of the receptor, meanwhile the face, making contact with the receptor, of the donor is ground, and surface roughness is lowered; secondly, the ground end face of the receptor makes tight contact with the ground face of the donor, the donor and the receptor are heated to 1340 DEG C to 1470 DEG C, the temperature is kept for 5 minutes to 120 minutes, and the donor and the receptor are cooled to the room temperature after being taken out. The preparation method has the beneficial effects that the size and mechanical property of an original workpiece can be changed easily, the requirement that the same workpiece has different performance in different positions when used on different occasions is met, or the whole workpiece is prevented from being scrapped by increasing the working allowance of the workpiece.

Description

一种梯度合金的制备方法 The method of preparing an alloy gradient

技术领域 FIELD

[0001] 本发明涉及合金加工方法,具体的涉及一种梯度合金的制备方法。 [0001] The present invention relates to a method of processing the alloy, particularly, to a method for preparing a gradient alloy.

背景技术 Background technique

[0002] 在硬质合金产品在使用的过程中,工件局部地方受力的状态不一样,对合金性能的要求也有很大差异。 [0002] The cemented carbide product during use, a localized stress state in the work are not the same, the alloy performance requirements are quite different. 如顶锤,和叶腊石接触的顶面受到很大的压应力,需要抗压强度很好的合金,在斜面上受到很大的剪切力,而在底部则受到较大的拉应力,一种牌号的合金很难同时满足以上所有的受力情况,若是根据工件各部分的受力情况,在各部分用不同牌号的合金来满足该部分的受力要求,这样能大大改善工件的使用寿命。 The anvil, in contact with a top surface and pyrophyllite under great stress, need good compressive strength alloy under great shear forces on the slope, and at the bottom are subject to greater tensile stress A hard alloy grades and all of the forces to meet the above, if the force circumstances that each portion of the workpiece, in each portion with a different alloy grades to satisfy the requirements of the portion of the force, this can greatly improve the life of the workpiece.

[0003] 对于某些产品烧成后没有加工余量,该产品会因不能满足装配要求而报废,造成很大的损失。 [0003] there is no allowance for the firing of certain products, the product will because we can not meet the requirements of the assembly scrapped, resulting in great loss. 这时在合金加工余量少的地方补以高粘接相的合金,使得粘接相迀移,由于粘接相的迀移,受体尺寸会发生明显的变化,这样能够满足加工装配的要求。 In this case up to a high alloy binder phase in the alloy a small allowance place, so that the adhesive Gan phase shift, the phase shift due Gan bonding, receptor size significantly changes, so can satisfy the requirements of processing and assembly .

发明内容 SUMMARY

[0004] 本发明的目的在于提供一种梯度合金的制备方法,能够有效解决现有硬质合金产品各个部分牌号一致,无法满足不同部位实际使用需求的问题。 [0004] The object of the present invention is to provide a method of preparing a gradient alloy, can effectively solve the various portions of the conventional uniform carbide grade product, can not meet the actual needs of different parts of a problem.

[0005] 为了解决上述技术问题,本发明是通过以下技术方案实现的:一种梯度合金的制备方法,包含供体和受体,供体为需要减少粘结相含量的物体,受体为需要增加粘结相含量的物体,依次包括以下步骤:A.将受体需要增加粘结相含量的一端的端面进行打磨,降低表面粗糙度,将供体加工成与受体需要增加粘结相含量一端相适配的形状,同时也对供体与受体的接触面进行打磨,降低表面粗糙度将受体打磨后的端面与供体打磨后的面紧密接触,加热到1340〜1470°C,保温5〜120分钟,取出后降低到室温。 [0005] To solve the above problems, the present invention is achieved by the following technical solution: A method for preparing a gradient alloy, comprising a donor and an acceptor, donor is needed to reduce the binder phase content of the object, the receptor need increasing the binder content of an object, comprising the sequential steps of: a receptor is necessary to increase the end surface of one end of the binder phase content is polished to reduce the surface roughness, the donor and recipient need to be processed into binder phase content increases. One end is adapted to the shape, but also on the contact surface of the donor and acceptor is polished to reduce the surface roughness of the surface in intimate contact with the end surface of the grinding donor acceptor after grinding, was heated to 1340~1470 ° C, incubation 5~120 minutes, lowered to room temperature after removal.

[0006] 优选的,所述供体为高粘结相含量的硬质合金或者难溶金属碳化物合金;所述受体为低粘结相含量的硬质合金或者耐高温的多空隙陶瓷;不仅可以采用同类合金还可以采用其他类型的材料实现粘结相迀移。 [0006] Preferably, the donor is a high content of binder phase of cemented carbide or a metal carbide alloy insoluble; the receptor is a cemented carbide with a low content of binder or refractory ceramic multi-void; similar alloys may be used not only other types of materials may also be employed to achieve Gan binder phase shift.

[0007]与现有技术相比,本发明的优点是:将工件与供体或受体贴合在一起,再缓慢升温在液相出现后,保温一定的时间,液相受到势力的作用,发生定向的转移,使得势高的向势低的方向发生迀移,可以很轻易的改变原工件的尺寸和力学性能,以满足不同的场合使用使同一个工件在不同的位置拥有不同的性能,或者增加工件加工余量,而不至于导致整个工件报废。 [0007] Compared with the prior art, advantages of the present invention is that: the workpiece by the donor or caring together, then slowly warmed liquid phase appeared after, a certain holding time, the liquid subjected to forces, transfer orientation occurs, so that the potential generating Gan shifted to the low potential direction high, can easily change the size and mechanical properties of the original workpiece, to meet different occasions that the same workpiece has different properties in different locations, or increase the allowance of the workpiece, and does not lead to scrap the entire workpiece.

具体实施方式 Detailed ways

[0008] 本发明一种梯度合金的制备方法的实施例,受体为牌号YG8,平均晶粒度为2.2 μ m的产品,供体为牌号YG25,平均晶粒度为3.4 μ m的产品,供体和受体的接触面均为平面,先分别将供体和受体的接触面打磨,降低表面粗糙度,使两者能充分良好的紧密接触,受体的底部与供体的顶部接触,将紧密接触的供体和受体一起放进炉内进行加热,加热温度1375°C,保温时间90分钟,然后取出。 [0008] one embodiment of the present invention a method of preparing an alloy gradient grade YG8 receptor, the average grain size of 2.2 μ m product, grade YG25 donor is, the average grain size of 3.4 μ m of products, the contact surface of the donor and acceptor are planar first contact surfaces respectively donor and acceptor polished to reduce the surface roughness, so that the two can be sufficiently good in close contact with the top of the bottom contacting donor acceptor , into close contact with the donor and acceptor heating furnace, a heating temperature of 1375 ° C, holding time of 90 minutes and then removed.

[0009] 经过上述方法处理后的受体,贴合前YG8产品直径为18.9mm,贴合烧结后底部直径变为21.7mm、顶部直径21.3mm,YG8产品密度由14.75g/cm3变为13.51g/cm3,烧结前的硬度为HRA:88.5,烧结后底部、中部和顶部的硬度HRA分别为81.8、82.5和83.2,使产品内部硬度等参数成梯度变化。 [0009] After the above-described method of treating receptors, bonded to the front YG8 Diameter 18.9mm, the diameter of the bottom bonding after sintering becomes 21.7 mm, a top diameter of 21.3mm, the density of the product YG8 14.75g / cm3 becomes 13.51g / cm3, hardness before sintering HRA: 88.5, after sintering the bottom, middle and top hardness HRA of 81.8,82.5 and 83.2, respectively, and other parameters of the product into the internal hardness gradient.

[0010] 通过本方法实现了钴迀移,使YG8产品的尺寸和力学性能都发生了变化,通过这种变化,我们可以很好的满足一些特殊产品的要求,比如顶锤,根据顶锤的使用情况,顶部受压应力,底部受拉应力,也就是说顶部的钴含量要低一些,底部的钴含量要高一些,通过上述方法我们就可以很轻易的实现这样的结构,还有比如矿山机器用球齿,齿尖要耐磨,齿根要抗折断,同样可以使用本方法来解决。 [0010] The present method is achieved by shifting cobalt Gan, that the size and mechanical properties YG8 products have changed, by this change, we can satisfy the requirements of some special products, such as a top hammer, a top hammer usage, the top of the compressive stress, tensile stress by the bottom, that is the top of the cobalt content is lower, the bottom of the cobalt content is higher, we can very easily implement such a structure by the above method, there is such mines ball gear machine, tooth tip to wear, to anti break the tooth root, can also be solved using the present method.

[0011] 将工件与供体或受体贴合在一起,再缓慢升温在液相出现后,保温一定的时间,液相受到势力的作用,发生定向的转移,使得势高的向势低的方向发生迀移,可以很轻易的改变原工件的尺寸和力学性能,以满足不同的场合使用使同一个工件在不同的位置拥有不同的性能,或者增加工件加工余量,而不至于导致整个工件报废。 [0011] The workpiece receiving considerate donor or together, in liquid phase and then slowly warmed appears, holding a certain time, the liquid subjected to forces, the orientation transition occurs, so that a high potential to the low potential Gan shift direction occurs, you can easily change the size and mechanical properties of the original workpiece, to meet different occasions that the same workpiece has different properties in different locations, or to increase the allowance of the workpiece, the workpiece will not cause the entire scrapped.

[0012] 以上所述仅为本发明的具体实施例,但本发明的技术特征并不局限于此,任何本领域的技术人员在本发明的领域内,所作的变化或修饰皆涵盖在本发明的专利范围之中。 [0012] The above embodiments are only specific embodiments of the present invention, the technical features of the present invention is not limited thereto, and any person skilled in the art of the present invention, modifications or changes are made in the present invention encompasses among the scope of the patent.

Claims (2)

  1. 1.一种梯度合金的制备方法,其特征在于:包含供体和受体,供体为需要减少粘结相含量的物体,受体为需要增加粘结相含量的物体,依次包括以下步骤:A.将受体需要增加粘结相含量的一端的端面进行打磨,降低表面粗糙度,将供体加工成与受体需要增加粘结相含量一端相适配的形状,同时也对供体与受体的接触面进行打磨,降低表面粗糙度;B.将受体打磨后的端面与供体打磨后的面紧密接触,加热到1340〜1470°C,保温5〜120分钟,取出后降低到室温。 1. A method for preparing a gradient alloy, wherein: the body comprises a donor and acceptor, the body is necessary to reduce the content of binder phase for the object, the object acceptor is necessary to increase the content of binder phase, comprising the sequential steps of: A. receptor end surface of one end of the need to increase the content of binder phase polished to reduce the surface roughness, the donor and recipient need to be processed into one end of the binder phase content increases adapted shape, but also on the donor and the polished contact surface receptor, reduce surface roughness;. B close contact surface of the rear end surface of the grinding donor acceptor after grinding, was heated to 1340~1470 ° C, incubated 5~120 minutes, lowered to remove the at room temperature.
  2. 2.如权利要求1所述的一种梯度合金的制备方法,其特征在于:所述供体为高粘结相含量的硬质合金或者难溶金属碳化物合金;所述受体为低粘结相含量的硬质合金或者耐高温的多空隙陶瓷。 2. The method for producing a gradient alloy according to claim 1, wherein: said donor is a high content of binder phase of cemented carbide or a metal carbide alloy insoluble; the receptor is a low viscosity multi-void content of the ceramic phase bonded carbide or high temperature.
CN 201510633274 2015-09-29 2015-09-29 Preparation method of gradient alloy CN105331838A (en)

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EP2224783A2 (en) * 2004-05-25 2010-09-01 Hakko Corporation Soldering iron with replaceable tip
CN101356031A (en) * 2005-11-10 2009-01-28 贝克休斯公司 Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
CN101535516A (en) * 2006-09-29 2009-09-16 贝克休斯公司 Particle matrix composite drill bits with hardfacing and methods of manufacturing and repairing such drill bits using hardfacing materials
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