公开(公告)号：US11884008B2

公开(公告)日：2024-01-30

申请号：US18053635

申请日：2022-11-08

Applicant: XJET LTD.

Inventor： Eli Kritchman ,  Wael Salalha ,  Tali Aqua ,  Tal Sela ,  Axel Benichou ,  Doron Avramov ,  Yohai Dayagi

IPC: B33Y10/00 ,  B29C64/112 ,  B22F12/55 ,  B22F10/43 ,  B29C64/336 ,  B29C64/40 ,  B33Y30/00 ,  B29C64/165 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/209 ,  B29C64/393 ,  B28B1/00 ,  B28B17/00 ,  B22F10/38 ,  B22F10/62 ,  B22F10/64 ,  B22F10/66 ,  B29K505/00 ,  B29K509/02 ,  B22F10/14 ,  B22F12/90 ,  B22F10/00

CPC classification number: B29C64/165 ,  B22F10/38 ,  B22F10/43 ,  B22F10/62 ,  B22F10/64 ,  B22F10/66 ,  B22F12/55 ,  B28B1/001 ,  B28B17/0081 ,  B29C64/112 ,  B29C64/209 ,  B29C64/336 ,  B29C64/393 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B22F10/00 ,  B22F10/14 ,  B22F12/90 ,  B29K2505/00 ,  B29K2509/02

Abstract: A system for forming a product with different size particles is disclosed. The system comprises at least one print head region configured to retain a first group of print heads configurable to additively print at least a first portion of the product with a first material and a second group of print heads configurable to additively print at least a second portion of the product with a second material. The described system may also comprise a processor configured to regulate the first group of print heads and the second group of print heads to distribute the first material and the second material. A method of making an object by ink jet printing using the disclosed system is also disclosed.

公开(公告)号：US11753559B2

公开(公告)日：2023-09-12

申请号：US17322304

申请日：2021-05-17

Applicant: Xjet Ltd.

Inventor： Axel Benichou ,  Sven Rühle ,  Tali Aqua

IPC: C09D11/00 ,  C09D11/38 ,  C09D11/36 ,  C09D11/322 ,  B22F1/107 ,  B22F1/145 ,  B22F10/14 ,  B22F12/53 ,  B22F12/55 ,  B22F10/43

CPC classification number: C09D11/38 ,  B22F1/107 ,  B22F1/145 ,  B22F10/14 ,  C09D11/322 ,  C09D11/36 ,  B22F10/43 ,  B22F12/53 ,  B22F12/55 ,  B22F2998/10 ,  B22F2999/00 ,  Y02P10/25 ,  B22F2999/00 ,  B22F1/145 ,  B22F2201/013 ,  B22F2999/00 ,  B22F10/14 ,  B22F10/43 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/1021 ,  B22F3/1007

Abstract: Ti ink compositions for printing, such as ink jet printing, are disclosed. The ink compositions comprise a liquid dispersion of Ti hydride powder having a mean particle size of less than 10.0 microns; a liquid carrier, and at least one surfactant. Methods of making and using the disclosed inks are also disclosed. For example, a finished Ti product can be produced by printing the disclosed ink composition, such as by ink jet printing, to form a green article, heating the green article to dehydrogenate it and form a Ti containing part. The method may further comprise sintering the Ti containing part to produce a sintered Ti product. In an embodiment, the method comprises printing one or more support materials for the ink composition, that comprises solid particles of a metal oxide, a metal carbide, a metal nitride, a polymer, or combinations thereof.

公开(公告)号：US11623280B2

公开(公告)日：2023-04-11

申请号：US16923034

申请日：2020-07-07

Applicant: XJET LTD.

Inventor： Yohai Dayagi ,  Axel Benichou ,  Eli Kritchman

IPC: B33Y70/00 ,  B22F10/20 ,  B33Y10/00 ,  B33Y30/00 ,  C09D11/30 ,  B29C64/112 ,  B29C64/40 ,  B22F10/00 ,  B33Y40/20 ,  B28B1/00 ,  C09D11/03 ,  C09D11/033 ,  B28B17/00 ,  B22F10/30 ,  B22F10/10 ,  B33Y80/00 ,  B33Y50/02

Abstract: An ink composition for use as a support ink in three dimensional (3D) printing processes comprises a dispersion of solid particles in liquid carder, compatible with an inkjet print head, wherein after removing the liquid carder, the solid particles serve as support material for a Three Dimensional (3D) printed object, wherein the support material is separable from the 3D printed object.

公开(公告)号：US20210370400A1

公开(公告)日：2021-12-02

申请号：US17144262

申请日：2021-01-08

Applicant: XJET LTD.

Inventor： Axel BENICHOU ,  Liat LAUFER

IPC: B22F10/20 ,  B33Y10/00 ,  B33Y30/00 ,  C09D11/30 ,  B29C64/112 ,  B29C64/40 ,  B22F10/00 ,  B28B1/00 ,  C09D11/03 ,  C09D11/033 ,  B28B17/00

Abstract: There is disclosed an ink composition for three dimensional (3D) printing. The ink composition comprises: a liquid dispersion of tungsten carbide (WC) particles and cobalt (Co) particles, and, a carrier vehicle for the dispersion of tungsten carbide particles and the dispersion of cobalt particles. The ink composition is of a viscosity usable with ink jet print heads for 3D printing.

公开(公告)号：US11104071B2

公开(公告)日：2021-08-31

申请号：US16390963

申请日：2019-04-22

Applicant: XJET LTD.

Inventor： Eliahu M. Kritchman ,  Ronen Mimon ,  Hanan Gothait

IPC: B33Y10/00 ,  B29C64/209 ,  B41J2/045 ,  B41J2/165 ,  B29C64/112 ,  B29C64/35 ,  B29C64/357 ,  B41J2/17 ,  B33Y30/00 ,  B41J2/18

Abstract: A printing head assembly with integrated purge mechanism is disclosed. The printing head assembly comprises: (a) a liquid dispensing head comprising one or more dispensing nozzles enclosed in a nozzle plate, driven by at least first and second pressures, and (b) a shielding mask including an opening in front of the one or more nozzles, wherein the opening being configured such that when printing liquid is dispensed from the head driven by the first pressure, the liquid being dispensed in pulses through the opening in the shielding mask, and (ii) when purge printing liquid is dispensed from the head driven by the second pressure, the liquid being drawn to a capillary gap formed between the shielding mask and the nozzle plate thereby removing the purge printing liquid from the nearby nozzles.

公开(公告)号：US20200039263A1

公开(公告)日：2020-02-06

申请号：US16653224

申请日：2019-10-15

Applicant: XJET LTD.

Inventor： Eliahu M. Kritchman ,  Timofey Shmal

IPC: B41J29/393

Abstract: A method for evaluating performance of a plurality of nozzles of a printing head includes repeatedly operating each of the nozzles to print test marks on a surface of a substrate, each of the test marks printed by that nozzle being printed at a different time. At least once during the repeated operation of each of the nozzles, at least some of the test marks are erased from the surface. The test marks that were printed by that nozzle are inspected for a feature that is indicative of the performance of that nozzle.

公开(公告)号：US20190248139A1

公开(公告)日：2019-08-15

申请号：US16390963

申请日：2019-04-22

Applicant: XJET LTD.

Inventor： Eliahu M. KRITCHMAN ,  Ronen MIMON ,  Hanan GOTHAIT

IPC: B41J2/165 ,  B41J2/045 ,  B29C64/35 ,  B29C64/20 ,  B29C64/112 ,  B33Y30/00 ,  B41J2/17 ,  B33Y10/00

CPC classification number: B41J2/165 ,  B29C64/112 ,  B29C64/20 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B41J2/04566 ,  B41J2/16523 ,  B41J2/16526 ,  B41J2/16552 ,  B41J2/1714 ,  B41J2/18 ,  B41J2002/16502 ,  B41J2002/16558

Abstract: A printing head assembly with integrated purge mechanism is disclosed. The printing head assembly comprises: (a) a liquid dispensing head comprising one or more dispensing nozzles enclosed in a nozzle plate, driven by at least first and second pressures, and (b) a shielding mask including an opening in front of the one or more nozzles, wherein the opening being configured such that when printing liquid is dispensed from the head driven by the first pressure, the liquid being dispensed in pulses through the opening in the shielding mask, and (ii) when purge printing liquid is dispensed from the head driven by the second pressure, the liquid being drawn to a capillary gap formed between the shielding mask and the nozzle plate thereby removing the purge printing liquid from the nearby nozzles.

公开(公告)号：US10315427B2

公开(公告)日：2019-06-11

申请号：US15276233

申请日：2016-09-26

Applicant: XJET LTD.

Inventor： Eliahu M. Kritchman ,  Ronen Mimon ,  Hanan Gothait

IPC: B41J2/165 ,  B41J2/045 ,  B41J2/17 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/112 ,  B29C64/20 ,  B29C64/35 ,  B41J2/18

Abstract: A printing head assembly with integrated purge mechanism is disclosed. The printing head assembly comprises: (a) a liquid dispensing head comprising one or more dispensing nozzles enclosed in a nozzle plate, driven by at least first and second pressures, and (b) a shielding mask including an opening in front of the one or more nozzles, wherein the opening being configured such that when printing liquid is dispensed from the head driven by the first pressure, the liquid being dispensed in pulses through the opening in the shielding mask, and (ii) when purge printing liquid is dispensed from the head driven by the second pressure, the liquid being drawn to a capillary gap formed between the shielding mask and the nozzle plate thereby removing the purge printing liquid from the nearby nozzles.

公开(公告)号：US10034392B2

公开(公告)日：2018-07-24

申请号：US14886251

申请日：2015-10-19

Applicant: XJET LTD.

Inventor： Hanan Gothait ,  Ran Asher Peleg ,  Ofir Baharav

IPC: B41J2/155 ,  H05K3/46 ,  B41J2/165 ,  B41J2/21

CPC classification number: H05K3/46 ,  B41J2/16579 ,  B41J2/16588 ,  B41J2/2139 ,  B41J2/2142 ,  B41J2/2146 ,  B41J2/515 ,  B41J25/001

Abstract: A method of printing is provided where printing is using a first printing unit having redundant nozzles. Then, the method may include stopping the printing with the first printing unit while continuing the printing with active nozzles of a second printing unit. The method may include inspecting the first printing unit and identifying faulty nozzles, then designating the faulty nozzles as inactive and designating inactive nozzles of the first printing unit as a new active nozzle. According to some embodiments the method may include moving the first printing unit to an inspection zone prior to inspecting while continuing the printing with active nozzles of a second printing unit and moving the first printing unit back to the printing zone after inspection and continuing the printing with the first printing unit.

公开(公告)号：US20180037763A1

公开(公告)日：2018-02-08

申请号：US15551239

申请日：2016-02-16

Applicant: Xjet Ltd.

Inventor： Axel BENICHOU ,  Sven RÜHLE ,  Tali AQUA

IPC: C09D11/38 ,  B22F1/00 ,  B22F3/00 ,  C09D11/36

CPC classification number: C09D11/38 ,  B22F1/0074 ,  B22F1/0088 ,  B22F3/008 ,  B22F2998/10 ,  B22F2999/00 ,  C09D11/322 ,  C09D11/36 ,  Y02P10/295 ,  B22F3/1021 ,  B22F3/1007 ,  B22F2003/1058 ,  B22F2201/013

Abstract: Ti ink compositions for printing, such as ink jet printing, are disclosed. The ink compositions comprise a liquid dispersion of Ti hydride powder having a mean particle size of less than 10.0 microns; a liquid carrier; and at least one surfactant. Methods of making and using the disclosed inks are also disclosed. For example, a finished Ti product can be produced by printing the disclosed ink composition, such as by ink jet printing, to form a green article, heating the green article to dehydrogenate it and form a Ti containing part. The method may further comprise sintering the Ti containing part to produce a sintered Ti product. In an embodiment, the method comprises printing one or more support materials for the ink composition, that comprises solid particles of a metal oxide, a metal carbide, a metal nitride, a polymer, or combinations thereof.