Changhai Li

Person

Qinhuangdao, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Automobile hub with hollow rim, hub assembling method and automobile
- Patent number 11,370,247
- Issue date Jun 28, 2022
- CITIC Dicastal CO., LTD.
- Chuan Cheng
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Wheel and rim with weight reduction sockets
- Patent number 11,338,613
- Issue date May 24, 2022
- CITIC Dicastal CO., LTD.
- Zuo Xu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Wheel and rim with weight reduction sockets
- Patent number 11,338,614
- Issue date May 24, 2022
- CITIC Dicastal CO., LTD.
- Zuo Xu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Automobile hub of multilayer rim, hub assembling method and automobile
- Patent number 11,312,175
- Issue date Apr 26, 2022
- CITIC Dicastal CO., LTD.
- Chuan Cheng
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Wheel and rim with weight reduction inner flange
- Patent number 11,167,587
- Issue date Nov 9, 2021
- CITIC Dicastal CO., LTD.
- Zuo Xu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Thermal treatment method for aluminum alloy cast-spun wheel
- Patent number 11,118,254
- Issue date Sep 14, 2021
- CITIC Dicastal CO., LTD.
- Zuo Xu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Wheel and rim with inner flange having strip weight reduction sockets
- Patent number 11,052,703
- Issue date Jul 6, 2021
- CITIC Dicastal CO., LTD.
- Zuo Xu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Process for manufacturing aluminum alloy wheel
- Patent number 10,919,083
- Issue date Feb 16, 2021
- CITIC Dicastal CO., LTD.
- Zuo Xu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Aluminum alloy low-pressure casting device and process
- Patent number 10,807,160
- Issue date Oct 20, 2020
- CITIC Dicastal CO., LTD.
- Dexi Du
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Aluminum wheel squeeze casting process and device
- Patent number 10,758,973
- Issue date Sep 1, 2020
- CITIC DICASTAL CO., LTD
- Dexi Du
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Water-cooled mold for low-pressure casting of aluminum alloy wheel
- Patent number 10,675,675
- Issue date Jun 9, 2020
- CITIC Dicastal CO., LTD.
- Lin Zhu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Mold for reducing defects in low pressure casting of aluminum alloy...
- Patent number 10,654,099
- Issue date May 19, 2020
- CITIC Dicastal CO., LTD.
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Mold for improving solidification speed of aluminum alloy cast hot...
- Patent number 10,576,534
- Issue date Mar 3, 2020
- CITIC Dicastal CO., LTD.
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Low-pressure casting mold for aluminum wheel
- Patent number 10,549,339
- Issue date Feb 4, 2020
- CITIC Dicastal CO., LTD.
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of refining aluminum alloy
- Patent number 10,494,699
- Issue date Dec 3, 2019
- CITIC Dicastal CO., LTD.
- Lisheng Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
On-line induction heating device for wheel blank
- Patent number 10,499,462
- Issue date Dec 3, 2019
- CITIC Dicastal CO., LTD.
- Haiping Chang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Tandem water spot cooling device for top die
- Patent number 10,456,822
- Issue date Oct 29, 2019
- CITIC Dicastal CO., LTD.
- Lin Zhu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Wheel lightweight machining fixture and method
- Patent number 10,335,859
- Issue date Jul 2, 2019
- CITIC Dicastal CO., LTD.
- Huiying Liu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Low-pressure cast aluminum wheel mold
- Patent number 10,328,487
- Issue date Jun 25, 2019
- CITIC DICASTAL CO., LTD
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Automatically-returning mold ejection device and casting mold compr...
- Patent number 10,328,486
- Issue date Jun 25, 2019
- CITIC Dicastal CO., LTD.
- Fengbao Luo
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Low-pressure mold for improving performance of spokes of aluminum w...
- Patent number 10,245,635
- Issue date Apr 2, 2019
- CITIC Dicastal CO., LTD.
- Guohua Liu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Device and method for measuring air tightness of aluminum alloy hub...
- Patent number 10,234,352
- Issue date Mar 19, 2019
- CITIC Dicastal CO., LTD.
- Chunhai Liu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Water cooled mold for casting aluminum alloy wheels and manufacturi...
- Patent number 10,220,437
- Issue date Mar 5, 2019
- CITIC Dicastal CO., LTD.
- Lin Zhu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Local extrusion device for high-pressure casting
- Patent number 10,201,850
- Issue date Feb 12, 2019
- CITIC Dicastal CO., LTD.
- Chuan Dai
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for drilling a steering knuckle casting
- Patent number 10,196,087
- Issue date Feb 5, 2019
- CITIC Dicastal CO., LTD.
- Bowen Xue
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Low-pressure casting bottom mold for aluminum alloy hub
- Patent number 10,058,913
- Issue date Aug 28, 2018
- CITIC Dicastal CO., LTD.
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Closed side mold water spot cooling apparatus, manufacturing method...
- Patent number 10,010,931
- Issue date Jul 3, 2018
- CITIC Dicastal CO., LTD.
- Lin Zhu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for color register spraying of hub
- Patent number 10,010,907
- Issue date Jul 3, 2018
- CITIC Dicastal CO., LTD.
- Le Zhang
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Exhausting device of low-pressure aluminum alloy wheel casting mold
- Patent number 10,010,934
- Issue date Jul 3, 2018
- CITIC Dicastal CO., LTD.
- Lu Chen
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Air tightness detection device for aluminum alloy wheel hub and met...
- Patent number 9,863,838
- Issue date Jan 9, 2018
- CITIC Dicastal CO., LTD.
- Chunhai Liu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
AUTOMOBILE HUB WITH HOLLOW RIM, HUB ASSEMBLING METHOD AND AUTOMOBILE
- Publication number 20200290396
- Publication date Sep 17, 2020
- CITIC DICASTAL CO., LTD
- Chuan CHENG
- B60 - VEHICLES IN GENERAL
Information Patent Application
AUTOMOBILE HUB OF MULTILAYER RIM, HUB ASSEMBLING METHOD AND AUTOMOBILE
- Publication number 20200254812
- Publication date Aug 13, 2020
- CITIC DICASTAL CO., LTD
- Chuan CHENG
- B60 - VEHICLES IN GENERAL
Information Patent Application
WHEEL DEBURRING MACHINE
- Publication number 20200147742
- Publication date May 14, 2020
- CITIC DICASTAL CO., LTD
- Yao ZHENG
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MOLD FOR REDUCING DEFECTS IN LOW PRESSURE CASTING OF ALUMINUM ALLOY...
- Publication number 20190321878
- Publication date Oct 24, 2019
- CITIC DICASTAL CO., LTD
- Kaiqing WANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
WHEEL AND RIM WITH WEIGHT REDUCTION INNER FLANGE
- Publication number 20190299706
- Publication date Oct 3, 2019
- CITIC DICASTAL CO., LTD
- Zhen LI
- B60 - VEHICLES IN GENERAL
Information Patent Application
LOW-PRESSURE CASTING MOLD FOR ALUMINUM WHEEL
- Publication number 20190299276
- Publication date Oct 3, 2019
- CITIC DICASTAL CO., LTD
- Kaiqing WANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
MOLD FOR IMPROVING SOLIDIFICATION SPEED OF ALUMINUM ALLOY CAST HOT...
- Publication number 20190291174
- Publication date Sep 26, 2019
- CITIC DICASTAL CO., LTD
- Kaiqing WANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
WATER-COOLED MOLD FOR LOW-PRESSURE CASTING OF ALUMINUM ALLOY WHEEL
- Publication number 20190291173
- Publication date Sep 26, 2019
- CITIC DICASTAL CO., LTD
- Lin ZHU
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PROCESS FOR MANUFACTURING ALUMINUM ALLOY WHEEL
- Publication number 20190283108
- Publication date Sep 19, 2019
- CITIC DICASTAL CO., LTD
- Haiping Chang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
ALUMINUM ALLOY LOW-PRESSURE CASTING DEVICE AND PROCESS
- Publication number 20190283120
- Publication date Sep 19, 2019
- CITIC DICASTAL CO., LTD
- Dexi DU
- B22 - CASTING POWDER METALLURGY
Information Patent Application
ALUMINUM WHEEL SQUEEZE CASTING PROCESS AND DEVICE
- Publication number 20190283121
- Publication date Sep 19, 2019
- CITIC DICASTAL CO., LTD
- Dexi DU
- B22 - CASTING POWDER METALLURGY
Information Patent Application
LOW-PRESSURE CASTING MULTI-SPRUE PROCESS AND DEVICE FOR ALUMINUM AL...
- Publication number 20190283122
- Publication date Sep 19, 2019
- CITIC DICASTAL CO., LTD
- Dexi DU
- B22 - CASTING POWDER METALLURGY
Information Patent Application
WHEEL AND RIM WITH INNER FLANGE HAVING STRIP WEIGHT REDUCTION SOCKETS
- Publication number 20190270338
- Publication date Sep 5, 2019
- CITIC DICASTAL CO., LTD
- Xu Wang
- B60 - VEHICLES IN GENERAL
Information Patent Application
WHEEL AND RIM WITH WEIGHT REDUCTION SOCKETS
- Publication number 20190270336
- Publication date Sep 5, 2019
- CITIC DICASTAL CO., LTD
- Zhen LI
- B60 - VEHICLES IN GENERAL
Information Patent Application
WHEEL AND RIM WITH WEIGHT REDUCTION SOCKETS
- Publication number 20190270337
- Publication date Sep 5, 2019
- CITIC DICASTAL CO., LTD
- Xu Wang
- B60 - VEHICLES IN GENERAL
Information Patent Application
WATER-COOLED MOLD FOR CASTING ALUMINUM ALLOY WHEEL
- Publication number 20190160523
- Publication date May 30, 2019
- CITIC DICASTAL CO., LTD
- Yule ZHOU
- B22 - CASTING POWDER METALLURGY
Information Patent Application
THERMAL TREATMENT METHOD FOR ALUMINUM ALLOY CAST-SPUN WHEEL
- Publication number 20190078185
- Publication date Mar 14, 2019
- CITIC DICASTAL CO., LTD
- Honglei LIU
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
WHEEL LIGHTWEIGHT MACHINING FIXTURE AND METHOD
- Publication number 20190061007
- Publication date Feb 28, 2019
- CITIC Dicastal CO.,LTD
- Huiying Liu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ON-LINE INDUCTION HEATING DEVICE FOR WHEEL BLANK
- Publication number 20180338353
- Publication date Nov 22, 2018
- CITIC Dicastal CO.,LTD
- Haiping CHANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
LOW-PRESSURE CAST ALUMINUM WHEEL MOLD
- Publication number 20180264540
- Publication date Sep 20, 2018
- CITIC DICASTAL CO., LTD
- Kaiqing WANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
CAST WHEEL MOLD CAVITY EXHAUST DEVICE
- Publication number 20180264542
- Publication date Sep 20, 2018
- CITIC Dicastal CO.,LTD
- Kaiqing WANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
LOW-PRESSURE CAST ALUMINUM WHEEL MOLD
- Publication number 20180264544
- Publication date Sep 20, 2018
- CITIC DICASTAL CO., LTD
- Kaiqing WANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
COOLING DEVICE FOR SIDE MOLD OF CAST WHEEL MOLD
- Publication number 20180264541
- Publication date Sep 20, 2018
- CITIC Dicastal CO.,LTD
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Low-pressure Mold for Improving Performance of Spokes of Aluminum W...
- Publication number 20180001373
- Publication date Jan 4, 2018
- CITIC DICASTAL CO., LTD
- Guohua Liu
- B22 - CASTING POWDER METALLURGY
Information Patent Application
LOW-PRESSURE CASTING BOTTOM MOLD FOR ALUMINUM ALLOY HUB
- Publication number 20170361371
- Publication date Dec 21, 2017
- CITIC Dicastal CO.,LTD
- Kaiqing Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
LOCAL EXTRUSION DEVICE FOR HIGH-PRESSURE CASTING
- Publication number 20170361373
- Publication date Dec 21, 2017
- CITIC DICASTAL CO., LTD
- Chuan Dai
- B22 - CASTING POWDER METALLURGY
Information Patent Application
EXHAUSTING DEVICE OF LOW-PRESSURE ALUMINUM ALLOY WHEEL CASTING MOLD
- Publication number 20170312819
- Publication date Nov 2, 2017
- CITIC DICASTAL CO., LTD
- Lu CHEN
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Automatically-returning Mold Ejection Device and Casting Mold Compr...
- Publication number 20170297090
- Publication date Oct 19, 2017
- CITIC DICASTAL CO., LTD
- Fengbao Luo
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Tandem Water Spot Cooling Device for Top Die
- Publication number 20170291212
- Publication date Oct 12, 2017
- CITIC DICASTAL CO., LTD
- Lin Zhu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Water Cooled Mold for Casting Aluminum Alloy Wheels and Manufacturi...
- Publication number 20170120322
- Publication date May 4, 2017
- CITIC Dicastal CO., LTD
- Lin Zhu
- B22 - CASTING POWDER METALLURGY

Changhai Li

Person

Patents Grantslast 30 patents

Automobile hub with hollow rim, hub assembling method and automobile

Wheel and rim with weight reduction sockets

Wheel and rim with weight reduction sockets

Automobile hub of multilayer rim, hub assembling method and automobile

Wheel and rim with weight reduction inner flange

Thermal treatment method for aluminum alloy cast-spun wheel

Wheel and rim with inner flange having strip weight reduction sockets

Process for manufacturing aluminum alloy wheel

Aluminum alloy low-pressure casting device and process

Aluminum wheel squeeze casting process and device

Water-cooled mold for low-pressure casting of aluminum alloy wheel

Mold for reducing defects in low pressure casting of aluminum alloy...

Mold for improving solidification speed of aluminum alloy cast hot...

Low-pressure casting mold for aluminum wheel

Method of refining aluminum alloy

On-line induction heating device for wheel blank

Tandem water spot cooling device for top die

Wheel lightweight machining fixture and method

Low-pressure cast aluminum wheel mold

Automatically-returning mold ejection device and casting mold compr...

Low-pressure mold for improving performance of spokes of aluminum w...

Device and method for measuring air tightness of aluminum alloy hub...

Water cooled mold for casting aluminum alloy wheels and manufacturi...

Local extrusion device for high-pressure casting

Method for drilling a steering knuckle casting

Low-pressure casting bottom mold for aluminum alloy hub

Closed side mold water spot cooling apparatus, manufacturing method...

Method for color register spraying of hub

Exhausting device of low-pressure aluminum alloy wheel casting mold

Air tightness detection device for aluminum alloy wheel hub and met...

Patents Applicationslast 30 patents

AUTOMOBILE HUB WITH HOLLOW RIM, HUB ASSEMBLING METHOD AND AUTOMOBILE

AUTOMOBILE HUB OF MULTILAYER RIM, HUB ASSEMBLING METHOD AND AUTOMOBILE

WHEEL DEBURRING MACHINE

MOLD FOR REDUCING DEFECTS IN LOW PRESSURE CASTING OF ALUMINUM ALLOY...

WHEEL AND RIM WITH WEIGHT REDUCTION INNER FLANGE

LOW-PRESSURE CASTING MOLD FOR ALUMINUM WHEEL

MOLD FOR IMPROVING SOLIDIFICATION SPEED OF ALUMINUM ALLOY CAST HOT...

WATER-COOLED MOLD FOR LOW-PRESSURE CASTING OF ALUMINUM ALLOY WHEEL

PROCESS FOR MANUFACTURING ALUMINUM ALLOY WHEEL

ALUMINUM ALLOY LOW-PRESSURE CASTING DEVICE AND PROCESS

ALUMINUM WHEEL SQUEEZE CASTING PROCESS AND DEVICE

LOW-PRESSURE CASTING MULTI-SPRUE PROCESS AND DEVICE FOR ALUMINUM AL...

WHEEL AND RIM WITH INNER FLANGE HAVING STRIP WEIGHT REDUCTION SOCKETS

WHEEL AND RIM WITH WEIGHT REDUCTION SOCKETS

WHEEL AND RIM WITH WEIGHT REDUCTION SOCKETS

WATER-COOLED MOLD FOR CASTING ALUMINUM ALLOY WHEEL

THERMAL TREATMENT METHOD FOR ALUMINUM ALLOY CAST-SPUN WHEEL

WHEEL LIGHTWEIGHT MACHINING FIXTURE AND METHOD

ON-LINE INDUCTION HEATING DEVICE FOR WHEEL BLANK

LOW-PRESSURE CAST ALUMINUM WHEEL MOLD

CAST WHEEL MOLD CAVITY EXHAUST DEVICE

LOW-PRESSURE CAST ALUMINUM WHEEL MOLD

COOLING DEVICE FOR SIDE MOLD OF CAST WHEEL MOLD

Low-pressure Mold for Improving Performance of Spokes of Aluminum W...

LOW-PRESSURE CASTING BOTTOM MOLD FOR ALUMINUM ALLOY HUB

LOCAL EXTRUSION DEVICE FOR HIGH-PRESSURE CASTING

EXHAUSTING DEVICE OF LOW-PRESSURE ALUMINUM ALLOY WHEEL CASTING MOLD

Automatically-returning Mold Ejection Device and Casting Mold Compr...

Tandem Water Spot Cooling Device for Top Die

Water Cooled Mold for Casting Aluminum Alloy Wheels and Manufacturi...