阅读说明：本技术 一种整体金属陶瓷合金棒材及其制备方法与应用 (A kind of bulk metal ceramal bar and the preparation method and application thereof ) 是由 董定乾 向新 杨伟 于 2019-09-05 设计创作，主要内容包括：本发明提供了一种整体金属陶瓷合金棒材及其制备方法与应用,属于金属陶瓷合金棒材技术领域,一种整体金属陶瓷合金棒材,组成为10-55wt％Ti(CN),3.5-10.5wt％(TaNb)C微米粉末,5-25wt％(WMo)C微米粉末,5-50wt％(MoTi)CN微米粉末,6-20wt％Co-Ni-R,0.25-3.5wt％TiC纳米粉末,0.25-3.5wt％TiN纳米粉末,0.15-0.75wt％AlN纳米粉末；其中R为高熔点元素Ru,Re,Rh中一种或几种；所述Ti(CN)粉末和所述(MoTi)CN粉末中的C,N均采用C/N原子比5/5、6/4或7/3中的一种。硬质相、红硬相及强化相均采用固溶体为原料,粘结相组分采用微量高熔点合金元素复合粉末进行添加,本发明的金属陶瓷刀具中硬质相和粘结相之间既能在界面形成元素的相互扩散,又不发生剧烈的化学反应,防止生成脆性相和恶化界面性能,提高金属陶瓷断裂韧性同时不降低硬度和抗弯强度。(The present invention provides a kind of bulk metal ceramal bars and the preparation method and application thereof, belong to cermet bar technical field, a kind of bulk metal ceramal bar, group becomes 10-55wt%Ti (CN), C microns of powder of 3.5-10.5wt% (TaNb), C microns of powder of 5-25wt% (WMo), CN microns of powder of 5-50wt% (MoTi), 6-20wt%Co-Ni-R, 0.25-3.5wt%TiC nanometer powder, 0.25-3.5wt%TiN nanometer powder, 0.15-0.75wt%AlN nanometer powder；Wherein R is one or more of in high-melting-point element Ru, Re, Rh；C in Ti (CN) powder and (MoTi) the CN powder, N are all made of one of C/N atomic ratio 5/5,6/4 or 7/3.It is raw material that hard phase, red hard phase and hardening constituent, which are all made of solid solution, bonding phase component is added using micro high-melting point alloy element composite powder, it can be in the phase counterdiffusion of interface formation element between hard phase and Binder Phase in ceramic tool of the invention, violent chemical reaction does not occur again, it prevents from generating brittlement phase and deteriorates interface performance, improve cermet fracture toughness does not reduce hardness and bending strength simultaneously.)

1. a kind of bulk metal ceramal bar, it is characterised in that: group becomes 10-55wt%Ti (CN), 3.5-10.5wt% (TaNb) C microns of powder, C microns of powder of 5-25wt% (WMo), CN microns of powder of 5-50wt% (MoTi), 6-20wt%Co- Ni-R, 0.25-3.5wt%TiC nanometer powder, 0.25-3.5wt%TiN nanometer powder, 0.15-0.75wt%AlN nano powder End；

Wherein R is one or more of in high-melting-point element Ru, Re, Rh；In Ti (CN) powder and (MoTi) the CN powder C, N is all made of one of C/N atomic ratio 5/5,6/4 or 7/3.

2. a kind of bulk metal ceramal bar according to claim 1, it is characterised in that: group becomes 20-45wt% C microns of powder of Ti (CN), 6.5-9.5wt% (TaNb), C microns of powder of 10-20wt% (WMo), 15-40wt% (MoTi) CN are micro- Rice flour end, 10-15wt%Co-Ni-R, 1.25-2.5wt%TiC nanometer powder, 1.25-2.5wt%TiN nanometer powder, 0.35- 0.55wt%AlN nanometer powder.

3. a kind of preparation method of such as described in any item bulk metal ceramal bars of claim 1-2, it is characterised in that: The following steps are included:

(1) by Ti (CN), (TaNb) C, (WMo) C, (MoTi) CN, Co-Ni-R, TiC, TiN, AlN are mixed, are added and grind Medium, dispersing agent and forming agent, obtain preparing material after mixing；

(2) preparing material is packed into ball mill, carries out ball milling and obtains mixed material；

(3) dry and mist projection granulating under mixed material vacuum is obtained into mixed material；

(4) mixed material is directly loadable into extrusion die and is crushed to cylinder bar stock；

(5) cylinder bar stock is put into vacuum drying oven after vacuum-sintering cooling acquisition bulk metal ceramal bar.

4. a kind of preparation method of bulk metal ceramal bar according to claim 3, it is characterised in that: the step Suddenly abrasive media is hexane in (1), and accounting for and the mass fraction of total amount is added is 0.5-1.2%；The dispersing agent is stearic acid, Mass fraction is 0.25-0.5%；The forming agent is paraffin, mass fraction 2-5%.

5. a kind of preparation method of bulk metal ceramal bar according to claim 3, it is characterised in that: the step Suddenly ratio of grinding media to material is 6-10:1 in (2), and the rotational speed of ball-mill of the rotary mill is 70-120n/min, Ball-milling Time 64- 120h。

6. a kind of preparation method of bulk metal ceramal bar according to claim 3, it is characterised in that: the step Suddenly vacuum degreasing liquid-phase sintering in (5), the condition of vacuum-sintering are as follows: vacuum degree 5-50Pa, liquid phase sintering conditions 1400- 1500 DEG C, sintering time 0.75-3h；Furnace temperature is progressively cooled to 1250 DEG C after the completion, into the rapid cooling stage, is filled with argon Gas carries out rapid cooling until room temperature, argon gas purity are greater than 99.995% as cooling medium.

7. application of the bulk metal ceramal bar according to claim 1 or 2 in manufacture cutter, feature exist In manufacturing process is as follows:

(a) bulk metal ceramal bar surface treated of any of claims 1 or 2 and length cutter is cut into add Work prealloy bar stock；

(b) using Special precision equipment for grinding to the fine grinding of prealloy bar stock, helicla flute (4) and the grinding of cutting edge backlash and end tooth essence Mill, is processed into bulk metal sintex, and the cutting edge includes periphery cutting edge (3) and end tooth cutting edge (5), the bulk metal pottery Porcelain cutter includes knife handle (1) and the blade (2) for being located at knife handle (1) one end, and the knife handle (1) and the blade (2) are integrated into Type.

8. application of the bulk metal ceramal bar according to claim 6 in manufacture cutter, which is characterized in that step Suddenly accurate grinding is carried out to tool sharpening prealloy bar stock periphery using microfine grinding wheel in (b), is selected based on bar diameter It selects it and is ground revolving speed 75-150n/min, and open spiral grooves at the beginning of the whole periphery in bar stock periphery, back of tooth width is 2-8mm, spiral shell Swing angle 22-55 degree, feed speed control exist in 12-25mm/min, grinding speed 12-23m/s, the control of feed machining allowance 1.05-1.95mm selects grinding wheel graininess 40#-64#, grinding wheel diameter size 125-180mm, the wide 5-10mm of grinding wheel；Then using micro- Particulate grinding wheel is in the channel profile of bar stock grinding knife tool chip pocket (6), and in 8-20mm/min, grinding speed is for feed speed control 15-25m/s, the control of feed machining allowance select grinding wheel graininess 46#-64#, grinding wheel diameter size 85- in 0.10-0.55mm 160mm, the wide 5-12mm of grinding wheel；It is controlled using feed speed in 8-15mm/min, grinding speed 15- when cutting edge backlash is ground 25m/s, the control of feed machining allowance select grinding wheel graininess 60#-120#, grinding wheel angle 30-60 degree, grinding wheel in 0.10-0.55mm Diameter dimension 45-145mm；The bar stock front end cutting edge end face that adjustment grinding wheel angle opposite grinding goes out cutter chip pocket (6) type again carries out End tooth refines grinding, using feed speed control in 10-25mm/min, grinding speed 15-25m/s, feed processing Surplus control selects grinding wheel graininess 60#-120#, grinding wheel diameter size 45-145mm, the wide 5-10mm of grinding wheel in 0.10-0.35mm, Processing forms the end tooth of multiple-cutting-edge mouth.

9. application of the bulk metal ceramal bar according to claim 7 in manufacture cutter, which is characterized in that open Spiral grooves, the grinding of cutting edge backlash and end tooth fine grinding stage, using the cooling hydrojet of high pressure, high pressure liquid spray is processed for blade Contact zone direct current injection method, using pressure at least more than 5.5MPa, control spray distance is 20-350mm, and injection flow is greater than 55L/min is fully cooled the processing contact surface of grinding wheel and bar stock, guarantees to take away the heat and remove Grinding grits that grinding generates.

10. application of the bulk metal ceramal bar according to claim 9 in manufacture cutter, which is characterized in that The cooling hydrojet main component of high pressure is basic mineral oil, fatty acid additive, extreme pressure sulfide additive, petroleum sodium sulfonate antirust Agent, dialkyl dithio phosphoramidic acid zinc antioxidant, pour-point depressant and defoaming agent composition.

Summary of the invention

For the technical problem that brittleness is big, toughness is low existing for above-mentioned ceramic tool in the prior art, the present invention is mentioned For a kind of bulk metal ceramal bar and the preparation method and application thereof.

A kind of bulk metal ceramal bar, group become 10-55wt%Ti (CN), and 3.5-10.5wt% (TaNb) C is micro- Rice flour end, C microns of powder of 5-25wt% (WMo), CN microns of powder of 5-50wt% (MoTi), 6-20wt%Co-Ni-R, 0.25- 3.5wt%TiC, 0.25-3.5wt%TiN, 0.15-0.75wt%AlN；

Wherein R is one or more of in high-melting-point element Ru, Re, Rh；Ti (CN) powder and (MoTi) the CN powder C in end, N are all made of one of C/N atomic ratio 5/5,6/4 or 7/3.

In the technical solution of the application, Ti (CN) is hard phase, and (TaNb) C is red hard phase, and (WMo) C and (MoTi) CN are Solution strengthening phase, Co-Ni-R (6~20) are Binder Phase, and TiC, TiN and AlN are nanometer powder activeness and quietness phase, hard phase, red It is raw material that hard phase and hardening constituent, which are all made of solid solution, and bonding phase component is added using micro high-melting point alloy element composite powder Add so that in ceramic tool of the invention between hard phase and Binder Phase can in the phase counterdiffusion of interface formation element, Again violent chemical reaction does not occur, prevent generate brittlement phase and deteriorate interface performance, furthermore using solid solution raw material as it is main at Divide addition mutually and compoiste adhering phase, interface is more stable so that hard phase and bonding are in contact, and is bonded high-melting-point in phase composite powder The addition of element also enhances Binder Phase binding performance, does not reduce hardness and bending resistance while improving the fracture toughness of cermet Intensity solves the technical problem that brittleness is big, toughness is low existing for above-mentioned ceramic tool in the prior art.

Preferably, group becomes 20-45wt%Ti (CN), C microns of powder of 6.5-9.5wt% (TaNb), 10-20wt% (WMo) C microns of powder, CN microns of powder of 15-40wt% (MoTi), 10-15wt%Co-Ni-R, 1.25-2.5wt%TiC nanometer Powder, 1.25-2.5wt%TiN nanometer powder, 0.35-0.55wt%AlN nanometer powder.

A kind of preparation method of bulk metal ceramal bar, comprising the following steps:

(1) by Ti (CN), (TaNb) C, (WMo) C, (MoTi) CN, Co-Ni-R, TiC, TiN, AlN are mixed, are added Abrasive media, dispersing agent and forming agent, obtain preparing material after mixing；

(2) preparing material is packed into ball mill, carries out ball milling and obtains mixed material；

(3) dry and mist projection granulating under mixed material vacuum is obtained into mixed material；

(4) mixed material is directly loadable into extrusion die and is crushed to cylinder bar stock；

(5) cylinder bar stock is put into vacuum drying oven after vacuum-sintering cooling acquisition bulk metal ceramal bar.

Preferably, a kind of preparation method of bulk metal ceramal bar, abrasive media is for oneself in the step (1) Alkane, accounting for and the mass fraction of total amount is added is 0.5-1.2%；The dispersing agent is stearic acid, mass fraction 0.25- 0.5%；The forming agent is paraffin, mass fraction 2-5%.

Preferably, ratio of grinding media to material is 6-10:1 in the step (2), and the rotational speed of ball-mill of the ball mill is 70-120n/min, Ball-milling Time is 64-120h.

Preferably, vacuum degreasing liquid-phase sintering in the step (5), the condition of vacuum-sintering are as follows: vacuum degree 5-50Pa, Liquid phase sintering conditions are 1400-1500 DEG C, sintering time 0.75-3h；Furnace temperature is progressively cooled to 1250 DEG C after the completion, is entered The rapid cooling stage is filled with argon gas as cooling medium and carries out rapid cooling until room temperature, argon gas purity are greater than 99.995%.

Preferably, application of the bulk metal ceramal bar in manufacture cutter, manufacturing process are as follows:

(a) bulk metal ceramal bar surface treated and length are cut into tool sharpening prealloy stick Base；

(b) using Special precision equipment for grinding to the fine grinding of prealloy bar stock, helicla flute and the grinding of cutting edge backlash and end tooth Fine grinding, is processed into bulk metal sintex, the cutting edge includes periphery cutting edge and end tooth cutting edge, the bulk metal Stupalox Tool includes knife handle and the blade positioned at knife handle one end, and the knife handle is integrally formed with the blade.

Preferably, accurate mill is carried out to tool sharpening prealloy bar stock periphery using microfine grinding wheel in step (b) It cuts, selects it to be ground revolving speed 75-150n/min based on bar diameter, and open spiral grooves at the beginning of the whole periphery in bar stock periphery, Back of tooth width is 2-8mm, helical angle 22-55 degree, feed speed control in 12-25mm/min, grinding speed 12-23m/s, The control of feed machining allowance selects grinding wheel graininess 40#-64#, grinding wheel diameter size 125-180mm, grinding wheel in 1.05-1.95mm Wide 5-10mm；Then using microfine grinding wheel in the channel profile of bar stock grinding knife tool chip pocket, feed speed control is in 8-20mm/ Min, grinding speed 15-25m/s, the control of feed machining allowance select grinding wheel graininess 46#-64#, sand in 0.10-0.55mm Wheel diameter size 85-160mm, the wide 5-12mm of grinding wheel；It is controlled using feed speed in 8-15mm/min, sand when cutting edge backlash is ground Wheel linear velocity is 15-25m/s, and the control of feed machining allowance selects grinding wheel graininess 60#-120#, grinding wheel angle in 0.10-0.55mm Spend 30-60 degree, grinding wheel diameter size 45-145mm；Adjustment grinding wheel angle opposite grinding goes out the bar stock front edge of cutter chip pocket type again Mouth end face carries out end tooth and refines grinding, is controlled using feed speed in 10-25mm/min, grinding speed 15-25m/ S, the control of feed machining allowance select grinding wheel graininess 60#-120#, grinding wheel diameter size 45-145mm, sand in 0.10-0.35mm Width 5-10mm is taken turns, processing forms the end tooth of multiple-cutting-edge mouth.

More preferably, spiral grooves, the grinding of cutting edge backlash and end tooth fine grinding stage are opened, is sprayed using high pressure is cooling Liquid, the cooling hydrojet main component of high pressure are anti-for basic mineral oil, fatty acid additive, extreme pressure sulfide additive, petroleum sodium sulfonate Become rusty agent, dialkyl dithio phosphoramidic acid zinc antioxidant, pour-point depressant and defoaming agent composition, and high pressure liquid spray is for blade processing contact Area's direct current injection method, using pressure at least more than 5.5MPa, control spray distance is 20-450mm, and injection flow is greater than 55L/ min.It is fully cooled the processing contact surface of grinding wheel and bar stock, guarantees to take away the heat and remove Grinding grits that grinding generates.

In the present processes scheme:

Compared with existing method, the beneficial effects of the present invention are:

(1) Ti (CN) is hard phase, and (TaNb) C is red hard phase, and (WMo) C and (MoTi) CN are solution strengthening phase, Co-Ni- R (6~20) is Binder Phase, and TiC, TiN and AlN are nanometer powder activeness and quietness phase, and hard phase, red hard phase and hardening constituent are all made of Solid solution is raw material, and bonding phase component is added using micro high-melting point alloy element composite powder, so that gold of the invention Belong to sintex between hard phase and Binder Phase can interface formation element phase counterdiffusion and violent chemistry occurs It reacts, prevent from generating brittlement phase and deteriorates interface performance, furthermore addition phase and compoiste adhering using solid solution raw material as principal component Phase, so that hard phase and bonding are in contact, interface is more stable, and the addition for being bonded high-melting-point element in phase composite powder also enhances Binder Phase binding performance does not reduce hardness and bending strength while improving the fracture toughness of cermet；

(2) a kind of prior art is provided and solves that ceramic tool process bar stock fractures and crack and grinding process is joined The problem of the difficult debugging of number solves breakage using effective control of reasonable cooling means and machined parameters, and reliability is poor, unstable Fixed, cutter comprehensive performance caused by Yi Fasheng " tipping " is low and the short technical problem of service life；

(3) preparation of cermet bar and tool sharpening match；

(4) it providing cermet bar and cutter preparation process is simple, cutter has high surface quality, and dimensional accuracy is high, The comprehensive performance that milling cutter obtained has obdurability, high rigidity, the big high-temperature oxidation resistance of bending strength excellent, service life has aobvious It writes and improves, processing stability is strong, durability is strong, and finishing and semifinishing field are using wide.

Detailed description of the invention

Fig. 1 is the micro-organization chart under 2500 times of scanning electron microscope of the cermet of embodiment 1 in the present invention；

Fig. 2 is heretofore described process tool exterior figure；

Fig. 3 is the cross-sectional view of two cutting edge of blade described in Fig. 2；

Fig. 4 is the cross-sectional view of three cutting edge of blade described in Fig. 2；

Fig. 5 is the cross-sectional view of four cutting edge of blade described in Fig. 2；

Fig. 6 is the cross-sectional view of five cutting edge of blade described in Fig. 2；

Fig. 7 is the cross-sectional view of six cutting edge of blade described in Fig. 2；

Fig. 8 is the long sword square end mill process tool external form pictorial diagram of four cutting edge staight shanks described in Fig. 5 in the present invention；

Fig. 9 is the long sword square end mill process tool exterior figure of two-edged staight shank in the present invention；

Figure 10 is the long sword square end mill process tool pictorial diagram of two-edged staight shank in the present invention.

Appended drawing reference: 1- knife handle, 2- blade, the periphery 3- cutting edge, 4- helicla flute, 5- end tooth cutting edge, 6- chip pocket.

Specific embodiment

It is right combined with specific embodiments below for the method personnel that make this field methods of this invention will be better understood scheme The present invention is described in further detail.