CN110421166A - 金属激光熔覆打印二维准直器材料及其制备方法 - Google Patents
金属激光熔覆打印二维准直器材料及其制备方法 Download PDFInfo
- Publication number
- CN110421166A CN110421166A CN201910703560.6A CN201910703560A CN110421166A CN 110421166 A CN110421166 A CN 110421166A CN 201910703560 A CN201910703560 A CN 201910703560A CN 110421166 A CN110421166 A CN 110421166A
- Authority
- CN
- China
- Prior art keywords
- metal
- dimensional collimator
- powder
- layer
- metal powder
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 85
- 239000002184 metal Substances 0.000 title claims abstract description 85
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000004372 laser cladding Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims description 18
- 239000000843 powder Substances 0.000 claims abstract description 53
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000010937 tungsten Substances 0.000 claims abstract description 31
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 24
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 17
- 239000011733 molybdenum Substances 0.000 claims abstract description 17
- 229910001182 Mo alloy Inorganic materials 0.000 claims abstract description 16
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000008018 melting Effects 0.000 claims abstract description 13
- 150000002739 metals Chemical class 0.000 claims abstract description 11
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000011812 mixed powder Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims description 18
- 238000007639 printing Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 7
- -1 WxNi1-x-yFey Chemical class 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000004886 process control Methods 0.000 claims description 3
- 229910002059 quaternary alloy Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002603 single-photon emission computed tomography Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000002583 angiography Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000009607 mammography Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007648 laser printing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B22F1/0003—
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/62—Treatment of workpieces or articles after build-up by chemical means
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/68—Cleaning or washing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
本发明公开了金属激光熔覆打印二维准直器材料,包括:金属粉末,所述金属粉末为钨或钼合金粉末或是钨或钼与其它低熔点金属的均匀混合粉末,如WxCu1‑x合金,其铜含量性在5%‑50%;WxNi1‑x‑yFey,WxNi1‑x‑yCuy,WxNi1‑x‑yCry,其中,x+y=5%‑50%,此组分可用于钼合金。本发明激光熔覆金属粉中,除钨和钼,加入了低熔点金属,这些低熔点金属的加入,对原本比较脆性的钨、钼薄壁材料进行了改性,能有效提高钨金属成形能力,增加了其延展性及准直器的机械强度;同时由于材料的熔点变低。
Description
技术领域
本发明涉及二维准直器制造技术领域,尤其涉及金属激光熔覆打印二维准直器材料及其制备方法。
背景技术
随着医疗及工业检测***的不断发展,大尺寸探测器也随之运用而生。目前无论是CT还是核医疗的SPECT都采用二维准直器,以降低在人体方向(Z)的射线的散射。当前,二维准直器制备有几大难点:第一,它在X及Z方向都要与射线源的原点聚焦,从而它不可能用传统的制造技术来生产二维准直器;二维准直器另一个制造难点在于其要求的精准度,二维准直器的每一个孔必须要与下面的探测器的像素一一对应,误差不能超过10%;二维准直器制造的第三个难点在于它每个孔的壁厚一般不能大于0.2mm, 甚至要求0.1mm, 以减小对有效射线的遮挡;二维准直器的第四个难点在于它要安装在高速旋转的CT或SPECT机器上,必须能抵挡强大的离心力(36G以上),所以要求其具有较大的机械强度。
中国专利CN 103660654 A公开了一种制造二维准直器元件的方法,包括如下步骤,提供金属粉末,粉末中钨的体积百分含量为50-70%,余量为镍;以及通过激光打印成型技术一层一层地用所述金属粉末制造二维准直器元件。发明者利用金属镍作为钨材料成型的粘合剂能有效提高激光3D打印过程中的成型能力。在我们的研究中发现,在激光熔覆过程中,还有许多钨合金材料能起到相同的功效,能有效提高钨金属成形的能力,而且其成形后,无论区成形成品的强度还是其薄壁的延展性都优于钨镍合金的性能。而在该专利中制备用的金属粉末仅含有钨、镍两种金属,钨、镍未做任何处理,延展性差,机械强度低,熔点比较高,激光熔覆困难,熔覆效果差,制备二维准直器过程效率低,制备成本高,成型工艺差。
为了满足以上二维准直器的要求,同时也解决这些技术难点,本发明采用目前先进的金属激光熔覆打印技术,大功率的激光,其功率在200W-1000W,利用其激光的高密度能量熔化用于准直器制备材料,如金属钨、钼等高熔点材料,使其烧结成线径在0.1-0.2mm线条。激光头的走向有计算机程序控制,一次能烧结几十微米厚的金属粉;本发明的另一个技术就是对准直器材料,如钨、钼进行改性,使其熔点变低或利用低熔点的其它金属作为低温粘结剂,使其与钨、钼等高温、高熔点材料形成较之熔点较低的合金,使激光熔覆过程变得容易。
发明内容
发明目的:本发明所要解决的二维准直器制备金属材料机械强度差,熔点高,金属成形能力差,制备成本高的技术问题,本发明提供金属激光熔覆打印二维准直器材料及其制备方法。
为了解决上述技术问题,本发明采用的技术方案是:金属激光熔覆打印二维准直器材料,包括:金属粉末。
优选的,所述金属粉末为钨或钼合金粉末或是钨或钼与其它低熔点金属的均匀混合粉末,如 WxCu1-x合金,其铜含量性在5%-50%;WxNi1-x-yFey,WxNi1-x-yCuy,WxNi1-x-yCry,其中,x+y=5%-50%,此组分可用于钼合金。
优选的,所述金属粉末为钨或钼与其它低熔点单质金属的均匀混合粉末,如WxNi1-x-yFey,WxNi1-x-yCuy,WxNi1-x-yCry,其中,x+y=5%-50%,,此组分可用于钼合金。
优选的,所述钨或钼合金粉末可以为四元合金,如WxCu1-x-y-zNiyFeZ、WxCu1-x-y-zNiyCrZ、WxCu1-x-y-zNiyZnZ、WxCu1-x-y-zNiyTiZ,其中x+y+z=5%-10%,此组分可用于钼合金。
优选的,所述金属粉末为球形或准球形中的一种,保证在激光烧结过程中觉有较好的流动性。
优选的,所述金属粉末也可以为任意形状。
优选的,所述金属粉末的粒径为1-80μm。
优选的,所述金属粉末的粒径为11-50μm。
优选的,所述金属粉末的粒径为5-20μm,用于制造壁厚为100um的二维准直器。
本发明还提供了金属激光熔覆打印二维准直器的制备方法,包括以下步骤:
S1:在制备二维准直器工件床上的金属基板上铺满一层金属粉;
S2:利用计算机预先设计好的程序,控制激光头走向,完成第一层格子的烧结;
S3:在步骤S2中烧结好的第一层格子的基础上,铺设第二层金属粉;
S4:用预先设计好的程序控制控制激光头进行第二层格子的烧结,在进行第二层激光烧结格子时,烧结的格子必须有别于第一层,且小于第一层;
S5:重复步骤S3-S4,完成第三层及之后层格子的烧结,直到烧结层数达到二维准直器的高度设计要求;
S6:去除烧结格子层过程中未烧结的金属粉,取出烧结后整体的二维准直器;
S7:用气嘴吹掉二维准直器上的粉末颗粒,用机械磨轮或化学工艺对二维准直器进行抛光,使其壁上光洁度满足要求。
本发明金属激光熔覆打印二维准直器材料及其制备方法具有以下有益效果:本发明激光熔覆金属粉中,除钨和钼,加入了低熔点金属,这些低熔点金属的加入,对原本比较脆性的钨、钼薄壁材料进行了改性,能有效提高钨金属成形能力,增加了其延展性及准直器的机械强度;同时由于材料的熔点变低,使得对激光器的功率要求变低,200W的功率也能用于生产,使设备成本降低;另外,由于材料熔点变低,在相同功率下,打印的时间缩短,有效地利用设备及增加产量,降低制备成本;本发明制备的二维准直器可以使用在医疗CT、工业CT及安检CT;本发明制备的二维准直器可以使用在SPECT核医疗***中,对gamma光的准直;本发明中制备的二维准直器也可用在数字x-光成像***中,其中包括对MAMMOGRAPHY,ANGIOGRAPHY等相关平板X光成像场合。
具体实施方式
以下通过具体实施例对本发明做进一步阐述,应当指出:对于本工艺领域的普通工艺人员来说,在不脱离本发明原理的前提下,对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。
实施例
金属激光熔覆打印二维准直器材料,包括:金属粉末。
其中,所述金属粉末为钨或钼合金粉末或是钨或钼与其它低熔点金属的均匀混合粉末,如 WxCu1-x合金,其铜含量性在25%(体积%或mol%);WxNi1-x-yFey,WxNi1-x-yCuy,WxNi1-x-yFey,其中,x+y=5%-50%,此组分可用于钼合金。
其中,所述金属粉末为钨或钼与其它低熔点单质金属的均匀混合粉末,如WxNi1-x-yFey,WxNi1-x-yCuy,WxNi1-x-yCry,其中,x+y=5%-50%,,此组分可用于钼合金。
其中,所述钨或钼合金粉末可以为四元合金,如WxCu1-x-y-zNiyFeZ、WxCu1-x-y-zNiyCrZ、WxCu1-x-y-zNiyZnZ、WxCu1-x-y-zNiyTiZ,其中x+y+z=5%-10%,此组分可用于钼合金。
其中,所述金属粉末为球形或准球形中的一种,保证在激光烧结过程中觉有较好的流动性。
其中,所述金属粉末也可以为任意形状。
其中,所述金属粉末的粒径为50μm。
本实施例金属激光熔覆打印二维准直器的制备方法,包括以下步骤:
S1:在制备二维准直器工件床上的金属基板上铺满一层金属粉;
S2:利用计算机预先设计好的程序,控制激光头走向,完成第一层格子的烧结;
S3:在步骤S2中烧结好的第一层格子的基础上,铺设第二层金属粉;
S4:用预先设计好的程序控制控制激光头进行第二层格子的烧结,在进行第二层激光烧结格子时,烧结的格子必须有别于第一层,且小于第一层;
S5:重复步骤S3-S4,完成第三层及之后层格子的烧结,直到烧结层数达到二维准直器的高度设计要求;
S6:去除烧结格子层过程中未烧结的金属粉,取出烧结后整体的二维准直器;
S7:用气嘴吹掉二维准直器上的粉末颗粒,用机械磨轮或化学工艺对二维准直器进行抛光,使其壁上光洁度满足要求。
本发明金属激光熔覆打印二维准直器材料及其制备方法,本发明激光熔覆金属粉中,除钨和钼,加入了低熔点金属,这些低熔点金属的加入,对原本比较脆性的钨、钼薄壁材料进行了改性,能有效提高钨金属成形能力,增加了其延展性及准直器的机械强度;同时由于材料的熔点变低,使得对激光器的功率要求变低,200W的功率也能用于生产,使设备成本降低;另外,由于材料熔点变低,在相同功率下,打印的时间缩短,有效地利用设备及增加产量,降低制备成本;本发明制备的二维准直器可以使用在医疗CT、工业CT及安检CT;本发明制备的二维准直器可以使用在SPECT核医疗***中,对gamma光的准直;本发明中制备的二维准直器也可用在数字x-光成像***中,其中包括对MAMMOGRAPHY,ANGIOGRAPHY等相关平板X光成像场合。
Claims (9)
1.金属激光熔覆打印二维准直器材料,其特征在于,包括:金属粉末。
2.根据权利要求1所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末为钨或钼合金粉末或是钨或钼与其它低熔点金属的均匀混合粉末,如 WxCu1-x合金,其铜含量性在5%-50%, 此组分可用于钼合金。
3.根据权利要求1所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末为钨或钼与其它低熔点单质金属的均匀混合粉末,如WxNi1-x-yFey,WxNi1-x-yCuy,WxNi1-x-yCry,其中,x+y=5%-50%,,此组分可用于钼合金。
4.根据权利要求2任一所述金属激光熔覆打印二维准直器材料,其特征在于,所述钨或钼合金粉末可以为四元合金,如WxCu1-x-y-zNiyFeZ、WxCu1-x-y-zNiyCrZ、WxCu1-x-y-zNiyZnZ、WxCu1-x-y-zNiyTiZ,其中x+y+z=5%-50%,此组分可用于钼合金。
5.根据权利要求1所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末为球形或准球形中的一种,保证在激光烧结过程中觉有较好的流动性。
6.根据权利要求1所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末也可以为任意形状。
7.根据权利要求1所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末的粒径为1-80μm。
8.根据权利要求7所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末的粒径为1-50μm.
根据权利要求7所述金属激光熔覆打印二维准直器材料,其特征在于,所述金属粉末的粒径为5-20μm,用于壁厚为100um的二维准直器。
9.根据权利要求1所述金属激光熔覆打印二维准直器材料及其制备方法,其特征在于,包括以下步骤:
S1:在制备二维准直器工件床上的金属基板上铺满一层金属粉;
S2:利用计算机预先设计好的程序,控制激光头走向,完成第一层格子的烧结;
S3:在步骤S2中烧结好的第一层格子的基础上,铺设第二层金属粉;
S4:用预先设计好的程序控制控制激光头进行第二层格子的烧结,在进行第二层激光烧结格子时,烧结的格子必须有别于第一层,且小于第一层;
S5:重复步骤S3-S4,完成第三层及之后层格子的烧结,直到烧结层数达到二维准直器的高度设计要求;
S6:去除烧结格子层过程中未烧结的金属粉,取出烧结后整体的二维准直器;
S7:用气嘴吹掉二维准直器上的粉末颗粒,用机械磨轮或化学工艺对二维准直器进行抛光,使其壁上光洁度满足要求。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910703560.6A CN110421166A (zh) | 2019-07-31 | 2019-07-31 | 金属激光熔覆打印二维准直器材料及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910703560.6A CN110421166A (zh) | 2019-07-31 | 2019-07-31 | 金属激光熔覆打印二维准直器材料及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110421166A true CN110421166A (zh) | 2019-11-08 |
Family
ID=68413474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910703560.6A Pending CN110421166A (zh) | 2019-07-31 | 2019-07-31 | 金属激光熔覆打印二维准直器材料及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110421166A (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112570716A (zh) * | 2020-07-23 | 2021-03-30 | 苏州徕泽丰材料科技有限公司 | 二维准直器的制备方法 |
CN113445046A (zh) * | 2021-06-30 | 2021-09-28 | 重庆工港致慧增材制造技术研究院有限公司 | 一种钨合金及模具浇口杯表面激光熔覆钨合金的方法 |
CN113579256A (zh) * | 2021-03-30 | 2021-11-02 | 苏州巨睿硕思材料科技有限公司 | 一种高分辨率二维光栅准直器制造*** |
CN115488350A (zh) * | 2022-08-15 | 2022-12-20 | 无锡伽马睿电子科技有限公司 | 一种Spect***的准直器及其加工方法 |
CN117600494A (zh) * | 2024-01-24 | 2024-02-27 | 安庆瑞迈特科技有限公司 | 一种提高3d打印准直器耐腐蚀性和强度的打印方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130075630A1 (en) * | 2011-09-26 | 2013-03-28 | Siemens Medical Solutions Usa, Inc. | Collimator for Medical Imaging and Fabrication Method |
CN103021493A (zh) * | 2011-09-26 | 2013-04-03 | 西门子公司 | 用于制造准直器的方法以及准直器 |
CN103660654A (zh) * | 2012-09-13 | 2014-03-26 | 通用电气公司 | 二维准直器元件及制造二维准直器元件的方法 |
CN104015358A (zh) * | 2014-06-03 | 2014-09-03 | 中国科学院高能物理研究所 | 一种编码准直器的制作方法 |
-
2019
- 2019-07-31 CN CN201910703560.6A patent/CN110421166A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130075630A1 (en) * | 2011-09-26 | 2013-03-28 | Siemens Medical Solutions Usa, Inc. | Collimator for Medical Imaging and Fabrication Method |
CN103021493A (zh) * | 2011-09-26 | 2013-04-03 | 西门子公司 | 用于制造准直器的方法以及准直器 |
CN103660654A (zh) * | 2012-09-13 | 2014-03-26 | 通用电气公司 | 二维准直器元件及制造二维准直器元件的方法 |
CN104015358A (zh) * | 2014-06-03 | 2014-09-03 | 中国科学院高能物理研究所 | 一种编码准直器的制作方法 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112570716A (zh) * | 2020-07-23 | 2021-03-30 | 苏州徕泽丰材料科技有限公司 | 二维准直器的制备方法 |
CN113579256A (zh) * | 2021-03-30 | 2021-11-02 | 苏州巨睿硕思材料科技有限公司 | 一种高分辨率二维光栅准直器制造*** |
CN113445046A (zh) * | 2021-06-30 | 2021-09-28 | 重庆工港致慧增材制造技术研究院有限公司 | 一种钨合金及模具浇口杯表面激光熔覆钨合金的方法 |
CN113445046B (zh) * | 2021-06-30 | 2022-09-30 | 重庆工港致慧增材制造技术研究院有限公司 | 一种钨合金及模具浇口杯表面激光熔覆钨合金的方法 |
CN115488350A (zh) * | 2022-08-15 | 2022-12-20 | 无锡伽马睿电子科技有限公司 | 一种Spect***的准直器及其加工方法 |
CN115488350B (zh) * | 2022-08-15 | 2024-04-09 | 无锡伽马睿电子科技有限公司 | 一种Spect***的准直器及其加工方法 |
CN117600494A (zh) * | 2024-01-24 | 2024-02-27 | 安庆瑞迈特科技有限公司 | 一种提高3d打印准直器耐腐蚀性和强度的打印方法 |
CN117600494B (zh) * | 2024-01-24 | 2024-04-02 | 安庆瑞迈特科技有限公司 | 一种提高3d打印准直器耐腐蚀性和强度的打印方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110421166A (zh) | 金属激光熔覆打印二维准直器材料及其制备方法 | |
Tan et al. | Selective laser melting of high-performance pure tungsten: parameter design, densification behavior and mechanical properties | |
Mirzababaei et al. | A review on binder jet additive manufacturing of 316L stainless steel | |
Streubel et al. | Depositing laser-generated nanoparticles on powders for additive manufacturing of oxide dispersed strengthened alloy parts via laser metal deposition | |
EP3187285B1 (en) | Powder for layer-by-layer additive manufacturing, and process for producing object by layer-by-layer additive manufacturing | |
Vaezi et al. | Beamless metal additive manufacturing | |
Tishkevich et al. | Isostatic hot pressed W–Cu composites with nanosized grain boundaries: microstructure, structure and radiation shielding efficiency against gamma rays | |
CN108080621B (zh) | 低成本激光选区熔化用钛粉、其制备方法及钛材制备方法 | |
EP3385060B1 (en) | Powder material, method of manufacturing a three-dimensional object, and three-dimensional manufacturing apparatus | |
EP3296043A1 (en) | Powder material, method for producing three-dimensional molded article, and three-dimensional molding device | |
Singh et al. | Progress in selective laser sintering using metallic powders: a review | |
TW201827617A (zh) | 利用積層製造製備金屬部件及其所用之含鎢重金屬合金粉末 | |
KR102359523B1 (ko) | 부품을 제조하기 위한 방법 | |
CN111093866A (zh) | 用于增材制造工艺的高质量球形粉末及其形成方法 | |
US11279991B2 (en) | Iron tungsten borocarbide body for nuclear shielding applications | |
KR102419052B1 (ko) | 적층 제조 프로세스에서의 사용을 위한 분말 | |
CN108290216B (zh) | 3d打印用粉末及3d打印方法 | |
EP3479932A1 (de) | Gesintertes hartmetallgranulat und seine verwendung | |
Manikandan et al. | Tungsten heavy alloys processing via microwave sintering, spark plasma sintering, and additive manufacturing: A review | |
Schäfer et al. | Polymer-bonded magnets produced by laser powder bed fusion: Influence of powder morphology, filler fraction and energy input on the magnetic and mechanical properties | |
Mariani et al. | Effect of printing parameters on sintered WC-Co components by binder jetting | |
Tu et al. | Laser synthesis of a copper–single-walled carbon nanotube nanocomposite via molecular-level mixing and non-equilibrium solidification | |
Wu et al. | Influence of laser energy input on fabricating pure tungsten thin wall grids by selective laser melting | |
CN103660654A (zh) | 二维准直器元件及制造二维准直器元件的方法 | |
CN103658662A (zh) | 粉末烧结熔渗法制备互不固溶金属层状复合材料的工艺 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191108 |