CN105798312B - 一种石油钻头用金刚石复合片烧结工艺 - Google Patents
一种石油钻头用金刚石复合片烧结工艺 Download PDFInfo
- Publication number
- CN105798312B CN105798312B CN201610148935.3A CN201610148935A CN105798312B CN 105798312 B CN105798312 B CN 105798312B CN 201610148935 A CN201610148935 A CN 201610148935A CN 105798312 B CN105798312 B CN 105798312B
- Authority
- CN
- China
- Prior art keywords
- diamond
- layer
- diamond compact
- bonding agent
- oil bit
- 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.)
- Active
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 104
- 239000010432 diamond Substances 0.000 title claims abstract description 104
- 238000005245 sintering Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 41
- 239000007767 bonding agent Substances 0.000 claims abstract description 39
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 39
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 6
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 claims description 6
- 230000005518 electrochemistry Effects 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000032798 delamination Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910017052 cobalt Inorganic materials 0.000 description 13
- 239000010941 cobalt Substances 0.000 description 13
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 13
- 239000011435 rock Substances 0.000 description 9
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 239000003595 mist Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 229910052903 pyrophyllite Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
- B22F2007/042—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Powder Metallurgy (AREA)
Abstract
本发明公开了一种石油钻头用金刚石复合片烧结工艺，具体涉及一种生产高耐热性、高耐磨性石油钻头用金刚石复合片的生产工艺。要解决的技术问题是传统的石油钻头用金刚石复合片耐热性差、耐磨性低，易出现整体脱层现象。本发明包括以下步骤：①将硬质合金衬底I和金刚石微粉层装在屏蔽杯中形成组装件I，金刚石微粉层中添加有结合剂；②将组装件在比正常合成压力低5‑12%的环境下烧结合成金刚石复合片；③将硬质合金衬底I去掉，对金刚石层进行脱结合剂处理；④将金刚石层和硬质合金衬底II重新装于屏蔽杯中形成组装块II，按正常合成压力进行二次烧结。采用这样技术方案的本发明增加了二次烧结合成，大幅提高了产品的耐热性、耐磨性。
Description
技术领域
本发明涉及金刚石复合片领域，具体涉及一种用于高耐热性、高耐磨性石油钻头用金刚石复合片的生产工艺。
背景技术
目前，传统的石油钻头用金刚石复合片主要采用两种方法制成：
方法（一）：如图1所示的内组装方法。烧结过程中通过硬质合金衬底I1中的钴及金刚石微粉层2中添加的结合剂共同扫越合成金刚石层，加上相邻金刚石颗粒的碳原子在1600℃、6GPa以上压力状态下形成的共价键，从而形成复合型的超硬材料烧结体。但是在烧结条件下，硬质合金衬底中的钴呈熔融状态，由于表面张力的作用，将由高浓度向低浓度流动，从而会有部分钴均匀渗透至金刚石层中，而金刚石微粉层2中添加的结合剂中也有一定量的钴，因此该技术生产的金刚石复合片产品的金刚石层中会有含量超过6%的钴分布，使得金刚石复合片在使用过程中产生诸多问题：（1）作为金刚石向石墨转化的触媒，影响产品的耐热性；（2）工作状态下数倍于金刚石的热膨胀系数导致金刚石层微裂纹的产生，使金刚石层发生非正常破损；（3）结合剂填充于金刚石颗粒中间影响碳原子间共价键的形成；（3）影响金刚石的致密度，降低产品的耐磨性。
方法（二）：对方法（一）产品的金刚石层3经脱结合剂处理后，采用多种方式通过焊料层4高温钎焊至硬质合金层1衬底上(如图2所示)。该钎焊产品能显著提高产品的耐热性，但易出现整体脱层现象。
发明内容
本发明要解决的技术问题是传统的石油钻头用金刚石复合片耐热性差、耐磨性低，易出现整体脱层现象，提供一种高耐热性、高耐磨性的石油钻头用金刚石复合片烧结工艺。
为实现上述目的，本发明采用下述技术方案：一种石油钻头用金刚石复合片烧结工艺，它包括以下步骤：①将硬质合金衬底I和金刚石微粉层装在屏蔽杯中形成组装件I，金刚石微粉层中添加有结合剂；②将步骤①形成的组装件I在比正常合成压力低5-12%的环境下烧结合成金刚石复合片；③将步骤②合成的金刚石复合片的硬质合金衬底I去掉，对金刚石层进行脱结合剂处理；④将脱结合剂处理后的金刚石层和硬质合金衬底II重新装于屏蔽杯中形成组装块II，将组装块II按正常合成压力进行二次烧结合成。
还包括以下步骤：对步骤③去掉硬质合金衬底I后的金刚石层进行初加工，将金刚石层加工至厚度与成品相同，外径尺寸比成品大0.3-0.4mm的金刚石层后再进行脱结合剂处理；将步骤④二次烧结合成的金刚石复合片进行再次加工至成品尺寸。
还包括以下步骤：将步骤③脱结合剂处理后的金刚石层清洗干净、高温烘干后再进行步骤④的组装；所述的高温烘干温度为120℃～200℃，烘干时间为3个小时以上
所述的步骤②和步骤④中烧结合成金刚石复合片时的温度为1600℃以上。
所述正常合成压力为6GPa以上。
所述脱结合剂处理为采用强酸浸泡法或电化学的方法进行处理。
所述强酸为王水。
采用上述技术方案的本发明在现有技术的基础上增加了二次烧结合成，使产品性能大幅提高；通过增加金刚石颗粒间C﹣C键合程度及降低金刚石层的含钴量来提高产品的耐热性和耐磨性，检测结果表明：同类产品的耐磨性提高20%以上，该工艺产品加热700℃，20分钟后，样品的耐磨性没有明显变化。
附图说明
图1是传统方法（一）金刚石复合片烧结时及本发明第一次烧结时的内组装结构示意图；
图2是传统方法（二）金刚石层高温钎焊至硬质合金层衬底结构示意图；
图3是本发明第二次烧结时的内组装结构示意图。
具体实施方式
如图1和图3所示，本发明包括以下步骤：①将硬质合金衬底I1和金刚石微粉层2装在屏蔽杯5中形成组装件I6，金刚石微粉层2中添加有结合剂；②将步骤①形成的组装件I6在比正常合成压力低5-12%的环境下烧结合成金刚石复合片；③将步骤②合成的金刚石复合片的硬质合金衬底I1去掉，对金刚石层3进行脱结合剂处理，本发明采用线切割的方式将硬质合金衬底I1作废料被去除；④将脱结合剂处理后的金刚石层3和硬质合金衬底II8重新装于屏蔽杯5中形成组装块II7，将组装块II7按正常合成压力进行二次烧结合成。本发明采用的结合剂为高纯钴粉，结合剂的用量为每100份金刚石微粉添加结合剂1-5份；步骤②烧结时的压力比正常合成压力低不足5%时，会使本次烧结压力接近正常合成压力，脱结合剂处理时效果不佳，比正常合成压力低超过12%时，金刚石层难以成型。金刚石层中的钴有两个来源：作为结合剂人为添加及硬质合金中的钴渗透，超过6%的钴分布的金刚石层是现有金刚石复合片耐热性低、耐磨性差的主要原因，而脱结合剂主要是脱除结合剂中的钴，步骤②在比正常合成压力低5-12%的环境下扫越合成金刚石复合片，使得脱结合剂处理效果更好，有效降低金刚石层的钴含量，使金刚石层中的钴含量降低至5%以下。二次烧结扫越所采用的金刚石层为脱钴金刚石层，并使金刚石颗粒间的共价键数量有所提高，该技术对产品性能提高有关键性作用。
还包括以下步骤：对步骤③去掉硬质合金衬底I1后的金刚石层3进行初加工，将金刚石层3加工至厚度与成品相同，外径尺寸比成品大0.3-0.4mm的金刚石层3后再进行脱结合剂处理；将步骤④二次烧结合成的金刚石复合片进行再次加工至成品尺寸。
还包括以下步骤：将步骤③脱结合剂处理后的金刚石层3清洗干净、高温烘干后再进行步骤④的组装；所述的高温烘干温度为120℃～200℃，烘干时间为3个小时以上
所述的步骤②和步骤④中烧结合成金刚石复合片时的温度为1600℃以上。
所述正常合成压力为6GPa以上。
所述脱结合剂处理为采用强酸浸泡法或电化学的方法进行处理。
所述强酸为王水。
下面为本发明的具体实施例：
实施例1：
一种石油钻头用金刚石复合片烧结工艺,包括以下步骤：将硬质合金衬底I1和金刚石微粉层2装在屏蔽杯5中形成组装件I6，金刚石微粉层2中添加有结合剂；组装完成后将组装块I6用常规方法置于由碳管、盐管、白云石管、叶腊石块等组成的合成块中；②将步骤①形成的组装件I6在比正常合成压力6GPa低5%，温度1580℃的的环境下扫越合成金刚石复合片；③将步骤②合成的金刚石复合片的硬质合金衬底I1去掉，对去掉硬质合金衬底I1后的金刚石层3进行初加工，将金刚石层3加工至厚度与成品相同，外径尺寸比成品大0.3-0.4mm的金刚石层3后,将金刚石层3直接浸入王水进行脱结合剂处理，将脱结合剂处理后的金刚石复合片清洗干净，150℃烘干3个小时；④将烘干后的金刚石层3和硬质合金衬底II8重新装于屏蔽杯5中形成组装块II7，将组装块II7按正常合成压力6GPa，温度1580℃进行二次烧结合成，将二次烧结合成的金刚石复合片进行再次加工至成品尺寸。
实施例2：
一种石油钻头用金刚石复合片烧结工艺,包括以下步骤：将硬质合金衬底I1和金刚石微粉层2装在屏蔽杯5中形成组装件I6，金刚石微粉层2中添加有结合剂；组装完成后将组装件I6用常规方法置于由碳管、盐管、白云石管、叶腊石块等组成的合成块中；②将步骤①形成的组装件I6在比正常合成压力6.5GPa低5%，温度1650℃的的环境下扫越合成金刚石复合片；③将步骤②合成的金刚石复合片的硬质合金衬底I1去掉，对去掉硬质合金衬底I1后的金刚石层3进行初加工，将金刚石层3加工至厚度与成品相同，外径尺寸比成品大0.3-0.4mm的金刚石层3后,将金刚石层3直接浸入王水进行脱结合剂处理，将脱结合剂处理后的金刚石复合片清洗干净，200℃烘干3个小时；④将烘干后的金刚石层3和硬质合金衬底II8重新装于屏蔽杯5中形成组装块II7，将组装块II7按正常合成压力6.5GPa，温度1650℃进行二次烧结合成，将二次烧结合成的金刚石复合片进行再次加工至成品尺寸。
实施例3：
一种石油钻头用金刚石复合片烧结工艺,包括以下步骤：将硬质合金衬底I1和金刚石微粉层2装在屏蔽杯5中形成组装件I6，金刚石微粉层2中添加有结合剂；组装完成后将组装件I6用常规方法置于由碳管、盐管、白云石管、叶腊石块等组成的合成块中；②将步骤①形成的组装件I6在比正常合成压力7GPa低10%，温度1650℃的的环境下扫越合成金刚石复合片；③将步骤②合成的金刚石复合片的硬质合金衬底I1去掉，对去掉硬质合金衬底I1后的金刚石层3进行初加工，将金刚石层3加工至厚度与成品相同，外径尺寸比成品大0.3-0.4mm的金刚石层3后,将金刚石层3直接浸入王水进行脱结合剂处理，将脱结合剂处理后的金刚石复合片清洗干净，180℃烘干4个小时；④将烘干后的金刚石层3和硬质合金衬底II8重新装于屏蔽杯5中形成组装块II7，将组装块II7按正常合成压力7GPa，温度1700℃进行二次烧结合成，将二次烧结合成的金刚石复合片进行再次加工至成品尺寸。
Claims (7)
1.一种石油钻头用金刚石复合片烧结工艺，其特征在于：它包括以下步骤：①将硬质合金衬底I（1）和金刚石微粉层（2）装在屏蔽杯（5）中形成组装件I（6），金刚石微粉层（2）中添加有结合剂；②将步骤①形成的组装件I（6）在比正常合成压力低5-12%的环境下烧结合成金刚石复合片；③将步骤②合成的金刚石复合片的硬质合金衬底I（1）去掉，对金刚石层（3）进行脱结合剂处理；④将脱结合剂处理后的金刚石层（3）和硬质合金衬底II（8）重新装于屏蔽杯（5）中形成组装块II（7），将组装块II（7）按正常合成压力进行二次烧结合成。
2.根据权利要求1所述的石油钻头用金刚石复合片烧结工艺，其特征在于：还包括以下步骤：对步骤③去掉硬质合金衬底I（1）后的金刚石层（3）进行初加工，将金刚石层（3）加工至厚度与成品相同，外径尺寸比成品大0.3-0.4mm的金刚石层（3）后再进行脱结合剂处理；将步骤④二次烧结合成的金刚石复合片进行再次加工至成品尺寸。
3.根据权利要求1所述的石油钻头用金刚石复合片烧结工艺，其特征在于：还包括以下步骤：将步骤③脱结合剂处理后的金刚石层（3）清洗干净、高温烘干后再进行步骤④的组装；所述的高温烘干温度为120℃～200℃，烘干时间为3个小时以上。
4.根据权利要求1所述的石油钻头用金刚石复合片烧结工艺，其特征在于：所述的步骤②和步骤④中烧结合成金刚石复合片时的温度为1600℃以上。
5.根据权利要求1所述的石油钻头用金刚石复合片烧结工艺，其特征在于：所述正常合成压力为6-7GPa。
6.根据权利要求1所述的石油钻头用金刚石复合片烧结工艺，其特征在于：所述脱结合剂处理为采用强酸浸泡法或电化学的方法进行处理。
7.根据权利要求6所述的石油钻头用金刚石复合片烧结工艺，其特征在于：所述强酸为王水。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148935.3A CN105798312B (zh) | 2016-03-16 | 2016-03-16 | 一种石油钻头用金刚石复合片烧结工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148935.3A CN105798312B (zh) | 2016-03-16 | 2016-03-16 | 一种石油钻头用金刚石复合片烧结工艺 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105798312A CN105798312A (zh) | 2016-07-27 |
| CN105798312B true CN105798312B (zh) | 2018-02-13 |
Family
ID=56468464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148935.3A Active CN105798312B (zh) | 2016-03-16 | 2016-03-16 | 一种石油钻头用金刚石复合片烧结工艺 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105798312B (zh) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694887B (zh) * | 2016-12-29 | 2019-03-15 | 富耐克超硬材料股份有限公司 | 一种聚晶金刚石复合片的制备方法及聚晶金刚石复合片 |
| CN107999771B (zh) * | 2017-11-28 | 2019-11-19 | 深圳市海明润超硬材料股份有限公司 | 一种金刚石复合片的制备方法 |
| CN108687353B (zh) * | 2018-06-20 | 2019-06-18 | 深圳市海明润超硬材料股份有限公司 | 一种金刚石复合片及制备方法 |
| CN108941577A (zh) * | 2018-08-21 | 2018-12-07 | 立府精密机械有限公司 | 一种石油钻头用金刚石复合片烧结工艺 |
| CN110116212A (zh) * | 2019-05-28 | 2019-08-13 | 河南四方达超硬材料股份有限公司 | 一种聚晶金刚石复合片的密封烧结装置 |
| CN110102585B (zh) * | 2019-05-29 | 2024-02-09 | 河南四方达超硬材料股份有限公司 | 一种多层聚晶金刚石拉丝模坯及其制备方法和制得的模具 |
| CN111203534A (zh) * | 2020-03-18 | 2020-05-29 | 河北省地矿局第七地质大队 | 金刚石钻头生产模具及金刚石钻头 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716748A (zh) * | 2010-01-20 | 2010-06-02 | 湖南大学 | 一种硬脆难加工材料的在线电解修锐高速深磨磨削方法 |
| EP2334455B1 (en) * | 2008-09-26 | 2014-11-26 | Wendt GmbH | Microwave plasma sintering |
| CN105156037A (zh) * | 2015-09-22 | 2015-12-16 | 富耐克超硬材料股份有限公司 | 一种热稳定型聚晶金刚石复合片及其制备方法 |
| CN105178870A (zh) * | 2015-10-08 | 2015-12-23 | 自贡金成硬质合金有限公司 | 一种整体式硬质合金脉冲喷嘴及其生产工艺 |
-
2016
- 2016-03-16 CN CN201610148935.3A patent/CN105798312B/zh active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2334455B1 (en) * | 2008-09-26 | 2014-11-26 | Wendt GmbH | Microwave plasma sintering |
| CN101716748A (zh) * | 2010-01-20 | 2010-06-02 | 湖南大学 | 一种硬脆难加工材料的在线电解修锐高速深磨磨削方法 |
| CN105156037A (zh) * | 2015-09-22 | 2015-12-16 | 富耐克超硬材料股份有限公司 | 一种热稳定型聚晶金刚石复合片及其制备方法 |
| CN105178870A (zh) * | 2015-10-08 | 2015-12-23 | 自贡金成硬质合金有限公司 | 一种整体式硬质合金脉冲喷嘴及其生产工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105798312A (zh) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105798312B (zh) | 一种石油钻头用金刚石复合片烧结工艺 | |
| EP0246118B1 (fr) | Produit abrasif diamanté thermostable et procédé de fabrication d'un tel produit | |
| US20090000208A1 (en) | Composite Material | |
| CN105886871B (zh) | 一种以碳化钛为主要成分的高强度硬质合金及制备方法 | |
| CN105772733B (zh) | 一种超厚金刚石层的聚晶金刚石复合片的制造方法 | |
| JPS6320792B2 (zh) | ||
| ZA201101040B (en) | Composite cutter substrate to mitigate residual stress | |
| CN106869805B (zh) | 一种聚晶金刚石复合片及其制备方法 | |
| CN104863513B (zh) | 聚晶金刚石复合片及其制备方法 | |
| CN104117676B (zh) | 稀土改性钨基结合剂金刚石磨头、其制造方法及稀土改性钨基结合剂 | |
| CN104646674B (zh) | 一种金刚石与金属胚体复合制作耐磨件的方法及其制品 | |
| CN105945292B (zh) | 一种金刚石复合片及其制备方法 | |
| KR101468852B1 (ko) | 초-경질 구성물 및 이의 제조 방법 | |
| CN103124800B (zh) | 多晶金刚石 | |
| CN106964779A (zh) | 自发热式自由烧结金刚石刀头的制备方法 | |
| CN104175237B (zh) | 稀土改性钨基结合剂金刚石磨轮及其制造方法 | |
| FR2702474A1 (fr) | Comprimés de diamant polycristallin. | |
| CN102418023A (zh) | 表层脱β相和富γ相梯度结构的涂层硬质合金基体的制备方法 | |
| RU2068318C1 (ru) | Композитная алмазная абразивная прессовка | |
| FR2498962A1 (fr) | Pastille frittee composite destinee a etre utilisee dans un outil et procede pour sa fabrication | |
| CN104128605B (zh) | 稀土改性钨基结合剂金刚石圆锯片及其制造方法 | |
| CN103949647A (zh) | 一种自扩散梯度功能复合刀具材料及其制备方法 | |
| CN105903972B (zh) | 一种金刚石复合片及其制备方法 | |
| CN107790710A (zh) | 一种金刚石复合片及其制备方法 | |
| CN104148640B (zh) | 稀土改性钨基结合剂金刚石切割片及其制造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |