CN106699140A - 一种高硬度陶瓷切削头 - Google Patents
一种高硬度陶瓷切削头 Download PDFInfo
- Publication number
- CN106699140A CN106699140A CN201710069163.9A CN201710069163A CN106699140A CN 106699140 A CN106699140 A CN 106699140A CN 201710069163 A CN201710069163 A CN 201710069163A CN 106699140 A CN106699140 A CN 106699140A
- Authority
- CN
- China
- Prior art keywords
- parts
- cutting head
- ceramic cutting
- minutes
- graphene
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62695—Granulation or pelletising
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3839—Refractory metal carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3839—Refractory metal carbides
- C04B2235/3847—Tungsten carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3856—Carbonitrides, e.g. titanium carbonitride, zirconium carbonitride
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/386—Boron nitrides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6565—Cooling rate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
一种高硬度陶瓷切削头,由以下重量份数的原料组成:Al2O3:30~45份;TiCN:15~25份;WC:12~18份;MoC:3~5份;MgO:4~8份;BN:5~7份;SiN4:3~5份;预处理过的石墨烯粉:1~3份;所述石墨烯的预处理方法为:将石墨烯与2‑氯‑4,6‑二甲氧基‑1,3,5‑三嗪按照1:0.02~0.05的质量比混合,放入浓度为20~35wt%乙醇溶液中,边搅拌边超声分散30~50分钟,然后在微波炉中干燥。本发明制备得到的陶瓷切削头不仅具有现有陶瓷刀具共有的高硬度、高耐磨性,而且还具有高韧性,使用寿命长,不易开裂,大大提高了陶瓷刀具的实用性能。
Description
技术领域
本发明涉及机械制造使用的高硬度耐磨陶瓷刀具技术领域,尤其是涉及一种石墨烯增强的高硬度陶瓷切削头。
背景技术
随着科学的发展与进步,机械加工朝着高速、高效加工方向发展,尤其是难加工材料的不断涌现,对切削刀具的性能提出了越来越高的要求。刀具的使用性能在很大程度上取决于刀具材料的性能。因陶瓷刀具材料具有硬度高、耐腐蚀、耐磨损和良好的化学稳定性等特点而得到了研究者广泛的关注。
陶瓷切削工具具备了高硬度、高密度、耐高温、抗磁化、抗氧化、耐腐蚀性强、化学稳定性好、高耐磨性等特点,是高速钢等传统切削工具良好的替代品,解决了钼、镍等资源稀缺的问题。但是目前陶瓷切削材料还是存在成本较高,韧性不够、脆性大、硬度参差不齐、散热性差、自润滑性不好等问题,需要解决。
随着高速切削加工技术的普遍应用以及难加工材料的大量涌现,在实际切削过程中,切削力与切削热大大增加,加剧了刀具材料的磨损。因此,要求刀具材料不仅具有良好的综合力学性能,还应兼具减摩耐磨特性。
目前,对于陶瓷刀具主要的增韧方式包括相变增韧、颗粒增韧和晶须、纤维增韧。但是相变增韧应用范围有限,基本仅限于ZrO2的相转化。颗粒增韧通过晶粒的钉扎可提高刀具的韧性,但是效果不显著。晶须、纤维可显著提高刀具韧性,但是一维的纤维、碳纳米管易发生团聚,不利于刀具综合力学性能的改善。
石墨烯,碳纳米管的同素异构体,一种由sp2杂化的碳原子以六边形周期排列形成的二维结构。石墨烯具有非常优异的物化和力学性能,导热系数高达5000Wm-1K-1,强度达130GPa,断裂强度约为125GPa。其独特的2D片状结构,可以有效的抑制石墨烯的团聚。石墨烯纳米片是由几层石墨烯构成,具有超高的表面积和极好的力学性能。因此,石墨烯纳米片在陶瓷刀具增韧补强方面应用前景广阔,且其超高的导热性能也是陶瓷刀具必需的。
陶瓷刀具大多数是通过热压烧结得到的,热压烧结在加压的同时进行加热,利于颗粒的接触、扩散和流动,容易得到接近理论密度的烧结体的性能较高。但热压烧结效率较低,很难大批量生产且成本也高。
发明内容
针对现有技术存在的上述问题,本申请人提供了一种高硬度陶瓷切削头。本发明制备得到的陶瓷切削头不仅具有现有陶瓷刀具共有的高硬度、高耐磨性,而且还具有高韧性,使用寿命长,不易开裂,大大提高了陶瓷刀具的实用性能。
本发明的技术方案如下:
一种高硬度陶瓷切削头,由以下重量份数的原料组成:
Al2O3:30~45份;
TiCN:15~25份;
WC:12~18份;
MoC:3~5份;
MgO:4~8份;
BN:5~7份;
SiN4:3~5份;
预处理过的石墨烯粉:1~3份;
所述石墨烯的预处理方法为:将石墨烯与2-氯-4,6-二甲氧基-1,3,5-三嗪按照1:0.02~0.05的质量比混合,放入浓度为20~35wt%乙醇溶液中,边搅拌边超声分散30~50分钟,然后在微波炉中干燥。
所述各原料的粒径均小于80微米。优选的,所述各原料的粒径均小于30微米。
优选的,所述高硬度陶瓷切削头由以下重量份数的原料组成:
Al2O3:42份;
TiCN:21份;
WC:16份;
MoC:4份;
MgO:6份;
BN:6份;
SiN4:3份;
预处理过的石墨烯粉:2份。
所述的高硬度陶瓷切削头的制备方法具体步骤如下:
(1)将除预处理过的石墨烯以外的其他原料混合后,加入重量为这些原料8~16%的无水乙醇,置入行星磨中进行混合和研磨1~4小时;
(2)然后加入预处理过的石墨烯粉以及重量为该石墨烯粉5~7%的硅烷偶联剂,继续球磨60~80分钟;
(3)将球磨后获得的泥状产物进行喷雾造粒,造粒后的物料在35~45MPa压力下压制25~45分钟成型;
(4)压制成型后的材料进行高温烧结,烧结温度为1620~1680℃,时间保持60~80分钟;
(5)然后以每分钟12~18℃的速度冷却至室温,室温下保持12~20分钟后回火,在680~720℃下保持25~35分钟,然后自然冷却至室温。
优选的,所述硅烷偶联剂为异丁基三乙氧基硅烷。
其中,2-氯-4,6-二甲氧基-1,3,5-三嗪的分子结构式如下:
本发明有益的技术效果在于:
石墨烯具有非常优良的性能,但是由于其自身易团聚性,难以均匀分散在其他物料中;再加上石墨烯是二维平面结构,如果在晶体中不规则分布,会导致晶体容易出现面型缺陷,从而破坏晶体的硬度和耐磨性。
本申请人经过对石墨烯的改性处理,使得石墨烯分散性好,与其他原料混合时容易均匀分散在其他原料之间,并且在特定的硅烷偶联剂的作用下有取向性的通过氢键搭接在混合原料中,在造粒和热压情况下不致打破其取向,最终烧结后得到的陶瓷晶体中石墨烯平面与切削头切削时的受力面平行,从而大大增强了切削头的韧性和耐磨性。
具体实施方式
实施例1
一种高硬度陶瓷切削头,由以下重量份数的原料组成:
Al2O3:30份;TiCN:15份;WC:12份;MoC:3份;MgO:4份;BN:5份;SiN4:3份;预处理过的石墨烯粉:1份;
所述石墨烯的预处理方法为:将石墨烯与2-氯-4,6-二甲氧基-1,3,5-三嗪按照1:0.02的质量比混合,放入浓度为20wt%乙醇溶液中,边搅拌边超声分散30分钟,然后在微波炉中干燥。
所述各原料的粒径均小于80微米。所述的高硬度陶瓷切削头的制备方法具体步骤如下:
(1)将除预处理过的石墨烯以外的其他原料混合后,加入重量为这些原料8%的无水乙醇,置入行星磨中进行混合和研磨1小时;
(2)然后加入预处理过的石墨烯粉以及重量为该石墨烯粉5%的异丁基三乙氧基硅烷偶联剂,继续球磨60分钟;
(3)将球磨后获得的泥状产物进行喷雾造粒,造粒后的物料在35MPa压力下压制45分钟成型;
(4)压制成型后的材料进行高温烧结,烧结温度为1620℃,时间保持80分钟;
(5)然后以每分钟12℃的速度冷却至室温,室温下保持12分钟后回火,在680℃下保持35分钟,然后自然冷却至室温。
实施例2
一种高硬度陶瓷切削头,由以下重量份数的原料组成:
Al2O3:42份;TiCN:21份;WC:16份;MoC:4份;MgO:6份;BN:6份;SiN4:3份;预处理过的石墨烯粉:2份。
所述石墨烯的预处理方法为:将石墨烯与2-氯-4,6-二甲氧基-1,3,5-三嗪按照1:0.02的质量比混合,放入浓度为20wt%乙醇溶液中,边搅拌边超声分散50分钟,然后在微波炉中干燥。
所述各原料的粒径均小于30微米。所述的高硬度陶瓷切削头的制备方法具体步骤如下:
(1)将除预处理过的石墨烯以外的其他原料混合后,加入重量为这些原料10%的无水乙醇,置入行星磨中进行混合和研磨2小时;
(2)然后加入预处理过的石墨烯粉以及重量为该石墨烯粉6%的异丁基三乙氧基硅烷偶联剂,继续球磨70分钟;
(3)将球磨后获得的泥状产物进行喷雾造粒,造粒后的物料在40MPa压力下压制30分钟成型;
(4)压制成型后的材料进行高温烧结,烧结温度为1650℃,时间保持70分钟;
(5)然后以每分钟15℃的速度冷却至室温,室温下保持16分钟后回火,在700℃下保持30分钟,然后自然冷却至室温。
实施例3
一种高硬度陶瓷切削头,由以下重量份数的原料组成:
Al2O3:42份;TiCN:21份;WC:16份;MoC:4份;MgO:6份;BN:6份;SiN4:3份;预处理过的石墨烯粉:2份。
所述石墨烯的预处理方法为:将石墨烯与2-氯-4,6-二甲氧基-1,3,5-三嗪按照1:0.04的质量比混合,放入浓度为25wt%乙醇溶液中,边搅拌边超声分散40分钟,然后在微波炉中干燥。
所述各原料的粒径均小于30微米。所述的高硬度陶瓷切削头的制备方法具体步骤如下:
(1)将除预处理过的石墨烯以外的其他原料混合后,加入重量为这些原料12%的无水乙醇,置入行星磨中进行混合和研磨3小时;
(2)然后加入预处理过的石墨烯粉以及重量为该石墨烯粉6%的异丁基三乙氧基硅烷偶联剂,继续球磨74分钟;
(3)将球磨后获得的泥状产物进行喷雾造粒,造粒后的物料在42MPa压力下压制35分钟成型;
(4)压制成型后的材料进行高温烧结,烧结温度为1660℃,时间保持65分钟;
(5)然后以每分钟16℃的速度冷却至室温,室温下保持18分钟后回火,在710℃下保持28分钟,然后自然冷却至室温。
实施例4
一种高硬度陶瓷切削头,由以下重量份数的原料组成:
Al2O3:45份;TiCN:25份;WC:18份;MoC:5份;MgO:8份;BN:7份;SiN4:5份;预处理过的石墨烯粉:3份;
所述石墨烯的预处理方法为:将石墨烯与2-氯-4,6-二甲氧基-1,3,5-三嗪按照1:0.05的质量比混合,放入浓度为35wt%乙醇溶液中,边搅拌边超声分散50分钟,然后在微波炉中干燥。
所述各原料的粒径均小于80微米。所述的高硬度陶瓷切削头的制备方法具体步骤如下:
(1)将除预处理过的石墨烯以外的其他原料混合后,加入重量为这些原料16%的无水乙醇,置入行星磨中进行混合和研磨4小时;
(2)然后加入预处理过的石墨烯粉以及重量为该石墨烯粉7%的异丁基三乙氧基硅烷偶联剂,继续球磨80分钟;
(3)将球磨后获得的泥状产物进行喷雾造粒,造粒后的物料在45MPa压力下压制25分钟成型;
(4)压制成型后的材料进行高温烧结,烧结温度为1680℃,时间保持60分钟;
(5)然后以每分钟18℃的速度冷却至室温,室温下保持20分钟后回火,在720℃下保持25分钟,然后自然冷却至室温。
测试例1:
将实施例1~4制备得到的陶瓷切削头进行性能测试,测试结果如表1所示。
表1
性能 | 实施例1 | 实施例2 | 实施例3 | 实施例4 |
维氏硬度(GPa) | 22.1 | 23.9 | 24.8 | 22.6 |
抗弯强度(MPa) | 1510 | 1590 | 1620 | 1530 |
断裂韧性(MPa·m1/2) | 12.3 | 13.7 | 14.5 | 12.6 |
疲劳强度(MPa) | 643 | 754 | 767 | 690 |
备注:抗疲劳性能测试,Kt=1,应力比R=0.5,循环频率f=120Hz,循环次数N≥107。
Claims (6)
1.一种高硬度陶瓷切削头,其特征在于由以下重量份数的原料组成:
Al2O3:30~45份;
TiCN:15~25份;
WC:12~18份;
MoC:3~5份;
MgO:4~8份;
BN:5~7份;
SiN4:3~5份;
预处理过的石墨烯粉:1~3份;
所述石墨烯的预处理方法为:将石墨烯与2-氯-4,6-二甲氧基-1,3,5-三嗪按照1:0.02~0.05的质量比混合,放入浓度为20~35wt%乙醇溶液中,边搅拌边超声分散30~50分钟,然后在微波炉中干燥。
2.根据权利要求1所述的高硬度陶瓷切削头,其特征在于所述各原料的粒径均小于80微米。
3.根据权利要求1所述的高硬度陶瓷切削头,其特征在于所述各原料的粒径均小于30微米。
4.根据权利要求1所述的高硬度陶瓷切削头,其特征在于由以下重量份数的原料组成:
Al2O3:42份;
TiCN:21份;
WC:16份;
MoC:4份;
MgO:6份;
BN:6份;
SiN4:3份;
预处理过的石墨烯粉:2份。
5.一种权利要求1~5任一项所述的高硬度陶瓷切削头的制备方法,其特征在于具体步骤如下:
(1)将除预处理过的石墨烯以外的其他原料混合后,加入重量为这些原料8~16%的无水乙醇,置入行星磨中进行混合和研磨1~4小时;
(2)然后加入预处理过的石墨烯粉以及重量为该石墨烯粉5~7%的硅烷偶联剂,继续球磨60~80分钟;
(3)将球磨后获得的泥状产物进行喷雾造粒,造粒后的物料在35~45MPa压力下压制25~45分钟成型;
(4)压制成型后的材料进行高温烧结,烧结温度为1620~1680℃,时间保持60~80分钟;
(5)然后以每分钟12~18℃的速度冷却至室温,室温下保持12~20分钟后回火,在680~720℃下保持25~35分钟,然后自然冷却至室温。
6.根据权利要求5所述的高硬度陶瓷切削头的制备方法,其特征在于所述硅烷偶联剂为异丁基三乙氧基硅烷。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710069163.9A CN106699140A (zh) | 2017-02-08 | 2017-02-08 | 一种高硬度陶瓷切削头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710069163.9A CN106699140A (zh) | 2017-02-08 | 2017-02-08 | 一种高硬度陶瓷切削头 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106699140A true CN106699140A (zh) | 2017-05-24 |
Family
ID=58910455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710069163.9A Pending CN106699140A (zh) | 2017-02-08 | 2017-02-08 | 一种高硬度陶瓷切削头 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106699140A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111056852A (zh) * | 2019-12-19 | 2020-04-24 | 西安交通大学 | 一种无粘结相wc基硬质合金刀具材料及其制备方法 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1271706A (zh) * | 2000-05-26 | 2000-11-01 | 清华大学 | 高耐磨性复合金属陶瓷刀具材料 |
CN1377852A (zh) * | 2001-03-30 | 2002-11-06 | 中国科学院化工冶金研究所 | 三氧化二铝-碳化钛基纳米复合陶瓷及其制备方法 |
CN102061417A (zh) * | 2009-11-13 | 2011-05-18 | 厦门理工学院 | 一种纳米氮化硅和氮化硼增强的碳氮化钛基金属陶瓷材料 |
JP2013151387A (ja) * | 2012-01-25 | 2013-08-08 | Okayama Univ | グラフェンナノリボン及びグラフェンナノリボンの化学修飾方法 |
CN104058398A (zh) * | 2014-07-15 | 2014-09-24 | 福建江夏学院 | 一种改性石墨烯及其制备方法 |
CN104496429A (zh) * | 2014-12-24 | 2015-04-08 | 东北大学 | Al2O3-Ti(C,N)-cBN陶瓷刀具材料及其制备方法 |
JP2015227253A (ja) * | 2014-05-30 | 2015-12-17 | 国立大学法人 熊本大学 | グラフェン分散液及びグラフェンの製造方法 |
CN105984866A (zh) * | 2015-01-30 | 2016-10-05 | 安炬科技股份有限公司 | 石墨烯的表面改质方法 |
CN106007680A (zh) * | 2016-05-23 | 2016-10-12 | 齐鲁工业大学 | 石墨烯增韧A12O3/Ti(C,N)纳米复合陶瓷刀具材料及其制备方法 |
CN106145958A (zh) * | 2016-07-06 | 2016-11-23 | 齐鲁工业大学 | 具有力学各向异性的Si3N4/TiC/石墨烯复合陶瓷刀具材料及其制备方法 |
CN106187259A (zh) * | 2016-07-18 | 2016-12-07 | 南京理工大学 | 一种石墨烯纳米片增韧的复合陶瓷刀具及其微波制备工艺 |
CN106187112A (zh) * | 2016-07-01 | 2016-12-07 | 山东大学 | 一种氧化铝‑碳化钛基复合陶瓷材料及其制备方法 |
-
2017
- 2017-02-08 CN CN201710069163.9A patent/CN106699140A/zh active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1271706A (zh) * | 2000-05-26 | 2000-11-01 | 清华大学 | 高耐磨性复合金属陶瓷刀具材料 |
CN1377852A (zh) * | 2001-03-30 | 2002-11-06 | 中国科学院化工冶金研究所 | 三氧化二铝-碳化钛基纳米复合陶瓷及其制备方法 |
CN102061417A (zh) * | 2009-11-13 | 2011-05-18 | 厦门理工学院 | 一种纳米氮化硅和氮化硼增强的碳氮化钛基金属陶瓷材料 |
JP2013151387A (ja) * | 2012-01-25 | 2013-08-08 | Okayama Univ | グラフェンナノリボン及びグラフェンナノリボンの化学修飾方法 |
JP2015227253A (ja) * | 2014-05-30 | 2015-12-17 | 国立大学法人 熊本大学 | グラフェン分散液及びグラフェンの製造方法 |
CN104058398A (zh) * | 2014-07-15 | 2014-09-24 | 福建江夏学院 | 一种改性石墨烯及其制备方法 |
CN104496429A (zh) * | 2014-12-24 | 2015-04-08 | 东北大学 | Al2O3-Ti(C,N)-cBN陶瓷刀具材料及其制备方法 |
CN105984866A (zh) * | 2015-01-30 | 2016-10-05 | 安炬科技股份有限公司 | 石墨烯的表面改质方法 |
CN106007680A (zh) * | 2016-05-23 | 2016-10-12 | 齐鲁工业大学 | 石墨烯增韧A12O3/Ti(C,N)纳米复合陶瓷刀具材料及其制备方法 |
CN106187112A (zh) * | 2016-07-01 | 2016-12-07 | 山东大学 | 一种氧化铝‑碳化钛基复合陶瓷材料及其制备方法 |
CN106145958A (zh) * | 2016-07-06 | 2016-11-23 | 齐鲁工业大学 | 具有力学各向异性的Si3N4/TiC/石墨烯复合陶瓷刀具材料及其制备方法 |
CN106187259A (zh) * | 2016-07-18 | 2016-12-07 | 南京理工大学 | 一种石墨烯纳米片增韧的复合陶瓷刀具及其微波制备工艺 |
Non-Patent Citations (3)
Title |
---|
XIU-ZHI TANG等: "Enhanced thermal stability in graphene oxide covalently functionalized with 2-amino-4,6-didodecylamino-1,3,5-triazine", 《CARBON》 * |
唐秀之: "氧化石墨烯表面功能化修饰", 《中国博士学位论文全文数据库工程科技Ⅰ辑》 * |
王国建: "《高分子现代合成方法与技术》", 31 July 2013, 同济大学出版社 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111056852A (zh) * | 2019-12-19 | 2020-04-24 | 西安交通大学 | 一种无粘结相wc基硬质合金刀具材料及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110483085B (zh) | 一种晶须增强氧化铝复合陶瓷及其制备方法与应用 | |
CN106145957B (zh) | 一种添加石墨烯的Si3N4基陶瓷刀具材料及其制备方法 | |
CN101892411B (zh) | 一种新型wc基硬质合金材料及其制备方法 | |
CN103058667B (zh) | 纳米固体润滑剂与纳米陶瓷颗粒复合改性的刀具材料及其制备方法 | |
CN106145958B (zh) | 具有力学各向异性的Si3N4/TiC/石墨烯复合陶瓷刀具材料及其制备方法 | |
CN111056852A (zh) | 一种无粘结相wc基硬质合金刀具材料及其制备方法 | |
CN108383527A (zh) | 一种石墨烯/碳化硼陶瓷复合材料的制备方法 | |
CN106187259A (zh) | 一种石墨烯纳米片增韧的复合陶瓷刀具及其微波制备工艺 | |
CN102943194B (zh) | 金刚石-Ti(C,N)基金属陶瓷复合材料及制备方法 | |
CN108251705A (zh) | 一种TiCx-Ni3(Al,Ti)/Ni基复合材料及其热压制备方法 | |
CN103668012A (zh) | 一种增强型铜基复合材料及其制备方法和应用 | |
CN108727050A (zh) | 炭材料3d增韧碳化硅复合材料及其制备方法和应用 | |
CN113307628A (zh) | 一种碳化硅-金刚石复相陶瓷磨环材料及其制备方法 | |
CN106830965B (zh) | 纳米碳材料增强超硬材料基复合材料的制备方法及应用 | |
CN110483059B (zh) | 一种表面具有压应力的石墨烯自润滑梯度陶瓷刀具材料及其制备方法 | |
CN106518119B (zh) | 一种致密的Ti2AlC/Al2O3纤维复合材料及其制备方法 | |
CN102936137A (zh) | 一种Al2O3-TiC/Al2O3-TiC-CaF2自润滑叠层陶瓷拉拔模具材料 | |
CN106699140A (zh) | 一种高硬度陶瓷切削头 | |
CN107500794A (zh) | 一种原位生成碳化硅纤维结合碳化硅耐磨材料及其制备方法 | |
CN106830900A (zh) | 一种高硬度陶瓷刀具 | |
CN105886972A (zh) | 一种耐磨碳化物基金属陶瓷刀具及其制备方法 | |
CN107365934B (zh) | 一种SiCp/Cu-铜箔叠层复合材料及其制备方法 | |
CN106747433B (zh) | 氧化锆基纳米陶瓷工模具材料及其制备方法 | |
CN108863373A (zh) | 一种石墨烯/碳化硼陶瓷复合材料的制备方法 | |
CN114790121B (zh) | 一种耐热高强度炭/陶材料的紧固件及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
RJ01 | Rejection of invention patent application after publication |