| ReturnTo Theme-Group-Choice | Onelevelup |
| 4E029 | Extrusion of metal | |
| B21C23/00 -35/06 | ||
| B21C23/00@A | AA | AA00 MATERIALS |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | |||
| . Billets | . . Composite billets | . Manufacturing | . Extrusion of molten metal | . Difficult-to-process materials and extrusion of active materials | . Extrusion of aluminum-alloy materials | . Others | ||||||
| B21C23/00@B | AB | AB00 HYDROSTATIC-PRESSURE EXTRUSION |
AB01 | AB02 | AB03 | AB04 | AB05 | AB06 | AB07 | AB08 | AB09 | |
| . Billets | . . Composite billets | . Manufacturing | . Pressure media | . . Supply and discharge | . Temperature management | . Continuous extrusion | . Addition of mechanical force (e.g., extrusion and extraction) | . Others | ||||
| B21C23/00@Z | AC | AC00 POST-TREATMENTS OF PRODUCTS |
AC01 | AC02 | AC03 | AC04 | AC05 | AC06 | AC07 | |||
| . Post-treatments | . . Mechanical post-treatments | . . . Rolling treatments | . . Coating treatments | . . . Painting | . Atmospheric adjustment | . Others | ||||||
| B21C23/01@Z | BA | BA00 PRETREATMENTS OF MATERIALS |
BA01 | BA02 | BA03 | |||||||
| . Billet scalping | . . Pretreatments inside presses | . Others | ||||||||||
| B21C23/08@A | CA | CA00 EXTRUSION OF PIPES |
CA01 | CA02 | CA03 | |||||||
| . Hydrostatic pressure extrusion | . Punching | . Others | ||||||||||
| B21C23/10 | DA | DA00 EXTRUSION OF FINNED PIPES |
DA01 | DA02 | DA03 | DA04 | ||||||
| . Pipes with spiral fins | . . Application of torsion after extrusion | . Double pipes with ribs | . Others | |||||||||
| B21C23/14 | EA | EA00 MANUFACTURING OF OTHER PRODUCTS |
EA01 | EA02 | EA03 | EA04 | EA05 | |||||
| . Expanded formation | . Combination with other processes (i.e., composite processes) | . Manufacturing by hydrostatic pressure extrusion | . Manufacturing by extrusion forging | . Others | ||||||||
| B21C23/18 | FA | FA00 IMPACT EXTRUSION |
FA01 | FA02 | FA03 | FA04 | ||||||
| . Dies (i.e., punch dies) | . Ejection | . Continuous-rotation impact extrusion | . Others | |||||||||
| B21C23/20 | GA | GA00 INDIRECT EXTRUSION |
GA01 | GA02 | GA03 | |||||||
| . Pipe manufacturing | . Manufacture of tubular bodies with bottoms | . Others | ||||||||||
| B21C23/21@A | HA | HA00 INDIRECT-EXTRUSION PRESSES |
HA01 | HA02 | HA03 | HA04 | HA05 | HA06 | ||||
| . Pipe extrusion | . Combined use of direct and indirect extrusion | . Presses with devices for treatment of residual substances | . Presses with die-handling devices | . Drives | . Others | |||||||
| B21C23/21@B;25/02@B | HB | HB00 HYDROSTATIC-EXTRUSION PRESSES |
HB01 | HB02 | HB03 | HB04 | HB05 | HB06 | ||||
| . Pipe extrusion | . . Mandrels | . Dies | . Drives | . Sealing | . Others | |||||||
| B21C23/21@C | HC | HC00 CONFORMING-EXTRUSION DEVICES |
HC01 | HC02 | HC03 | HC04 | HC05 | HC06 | HC07 | HC08 | ||
| . Structures of rotary members and fixed members | . Dies | . Materials | . Material supply | . Heating and cooling | . Cleaning (e.g., burr removal) | . Continuous-casting extrusion | . Others | |||||
| B21C23/21@Z | HD | HD00 EXTRUSION PRESSES |
HD01 | HD02 | HD03 | HD04 | ||||||
| . Pipe extrusion | . Frames | . Drives | . Others | |||||||||
| B21C23/22@A;23/22@Z | JA | JA00 COMPOSITE EXTRUSION |
JA01 | JA02 | JA03 | JA04 | ||||||
| . Composite-tube extrusion | . Composite billet extrusion | . Fiber-reinforced materials | . Others | |||||||||
| B21C23/26;23/28;23/30 | KA | KA00 EXTRUSION COATING |
KA01 | KA02 | KA03 | KA04 | KA05 | KA06 | KA07 | KA08 | KA09 | |
| . Core-wire coating | . Composite materials of different shapes | . Core-wire pretreatments | . . Heating | . . Mechanical pretreatments | . . Coating | . Dies | . Post-treatments | . Others | ||||
| B21C23/32 | LA | LA00 LUBRICATION |
LA01 | LA02 | LA03 | LA04 | LA05 | LA06 | ||||
| . Lubricants | . . Supply | . . Composition | . . Disks | . Pipe structures | . Others | |||||||
| B21C25/02@A | MA | MA00 ASSEMBLY OF DIES |
MA01 | MA02 | MA03 | MA04 | MA05 | |||||
| . Exchanging of dies | . . Exchanging of sliding dies | . . Exchanging of rotary dies | . Die-holders | . Others | ||||||||
| B21C25/02@C;25/02@D;25/02@Z | MB | MB00 DIES |
MB01 | MB02 | MB03 | MB04 | MB05 | MB06 | MB07 | MB08 | MB09 | |
| . Dies for hollow materials | . . Port-and-hole dies | . Porous dies | . Dies for conforming-extrusion devices | . Dies for impact extrusion | . Adjustment of the speed and quantity of the extrusion flow | . Materials | . Manufacturing | . Others | ||||
| B21C25/04 | NA | NA00 MANDRELS |
NA01 | NA02 | NA03 | |||||||
| . Exchange | . Adjustment | . Others | ||||||||||
| B21C25/06 | PA | PA00 PRESS-HEADS FOR COATING OR CLADDING |
PA01 | PA02 | ||||||||
| . Press heads for continuous extruding | . Others | |||||||||||
| B21C26/00@A-26/00@C | QA | QA00 PRESS-PLATES AND STEMS |
QA01 | QA02 | QA03 | QA04 | ||||||
| . Structure | . Exchange | . Handling | . Others | |||||||||
| B21C27/00@A;27/00@B | RA | RA00 CONTAINERS |
RA01 | RA02 | RA03 | RA04 | RA05 | RA06 | RA07 | |||
| . Shapes and structure | . Manufacturing | . Materials | . Exchange | . Fixing and holding | . Centering and adjustment | . Others | ||||||
| B21C29/00;29/02;29/04 | SA | SA00 HEATING AND COOLING |
SA01 | SA02 | SA03 | SA04 | SA05 | SA06 | SA07 | SA08 | SA09 | SA10 |
| . Heating | . Cooling | . . Cooling by liquids | . Billets | . Products | . Extrusion devices | . . Containers | . . Dies | . . Mandrels | . Others | |||
| B21C31/00 | TA | TA00 DETECTION AND CONTROL |
TA01 | TA02 | TA03 | TA04 | TA05 | TA06 | TA07 | TA08 | ||
| . Control | . . Extrusion control (e.g., pressure and speed of extrusion) | . . Removal of the product | . . Supply of material | . . Control of the shape of the product | . Detection | . Measurement | . Others | |||||
| B21C33/00 | UA | UA00 MATERIAL SUPPLY |
UA01 | UA02 | UA03 | UA04 | UA05 | |||||
| . Supply of billets to containers | . Billet cutting | . Billet welding | . Billet heating | . Others | ||||||||
| B21C35/00 | VA | VA00 REAR-SURFACE EQUIPMENT |
VA01 | VA02 | VA03 | VA04 | ||||||
| . Heat-proof materials for rear-surface equipment | . Control | . Cooling | . Others | |||||||||
| B21C35/02 | WA | WA00 REMOVAL AND DISENGAGEMENT OF PRODUCTS |
WA01 | WA02 | WA03 | WA04 | WA05 | WA06 | WA07 | WA08 | ||
| . Pullers | . . Zipper structures | . . Drives | . . Control | . Guide devices and support devices | . Fixed-length cutting | . Winding | . Others | |||||
| B21C35/04 | XA | XA00 DISENGAGEMENT AND REMOVAL OF RESIDUAL SUBSTANCES |
XA01 | XA02 | XA03 | XA04 | XA05 | XA06 | XA07 | XA08 | ||
| . Residual substance treatments | . . Cutting of residual substances | . . Ejection of residual substances | . . . Sliding systems | . . . Rotary systems | . . Separation of residual substances | . Removal of frozen billets | . Others | |||||
| B21C35/06 | YA | YA00 CLEANING |
YA01 | YA02 | YA03 | YA04 | YA05 | YA06 | ||||
| . Dies | . Mandrels | . Extrusion stems | . Containers | . Conforming extrusion devices | . Others |