Abstract

A pressurizing container, comprising the following segments sequentially distributed from upstream to downstream: a first straight line segment (11) having a length-to-diameter ratio of greater than 5; a second arc segment (12) that is a 1/4 arc and is a concave arc; and a third straight line segment (13) having a length-to-diameter ratio of less than 3, wherein the first straight line segment (11) is coaxially parallel to the third straight line segment (13); a downstream end of the third straight line segment (13) is an output end of the pressurizing container; and the cross-sectional area ratio of the first straight line segment (11) to the third straight line segment (13) is 2.5-3. The cooperation effect of structures of the segments of the pressurizing container ensures that the output pressure is large and stable. Also provided are a supercharger, a finishing apparatus, and a pressurizing method for hydraulic oil.

IPC Classes  ?

• F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids
• B24B 31/116 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure

Abstract

A surface finishing method for a micro internal flow channel, a micro internal flow channel workpiece, and a finishing medium. The bore of the micro internal flow channel is less than or equal to 3 mm, and the length-to-diameter ratio of the micro internal flow channel is greater than or equal to 50:1. The finishing method comprises: a liquid-solid two-phase flow finishing medium is used, the liquid phase viscosity of the finishing medium is less than 1000 cP, and the solid phase of the finishing medium is abrasive grains (1); and a predetermined pressure is applied to the finishing medium, so that the finishing medium flows in the micro internal flow channel at a flow rate of greater than 5 m/s, and the flow of the finishing medium flowing into the micro internal flow channel from one end of the micro internal flow channel reaches a saturation value of flow allowed by the bore of the micro internal flow channel, so that the hydraulic pressure inside the internal flow channel is in a pressure building state. The surface finishing method for a micro internal flow channel can achieve targeted machining of bumps on a rough surface, is not limited by the material of the micro internal flow channel, and obtains a super mirror quality in which an optimal surface roughness range is consistent with an abrasive grain average edge contact length range.

IPC Classes  ?

• B24B 1/00 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes
• B24B 31/116 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
• B24C 11/00 - Selection of abrasive materials for abrasive blasts
• B24B 31/14 - Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls

Abstract

A finishing device, comprising a thrust system (101), a sealing system (102), a conveying pipe system (103), and a recovery system (104), wherein the sealing system (102) comprises a piston (21) and a cylinder body (18) cooperating with the piston (21); the cylinder body (18) is used for accommodating a finishing medium (8) for performing finishing processing; the conveying pipe system (103) conveys the finishing medium (8) to a port of an inner-flow-channel workpiece (34); the recovery system (104) comprises a recovery container (35), a recovery pipe (36), a return pipe (37), a power assembly (130), and a control valve assembly (140); the control valve assembly (140) comprises a first valve (38) and a second valve (39); the recovery container (35) is in communication with the inner-flow-channel workpiece (34) by means of the recovery pipe (36), and is in communication with the sealing system (102) by means of the return pipe (37); the first valve (38) cooperates with the sealing system (102) and a low-pressure environment; the second valve (39) is located at the return pipe (37) and cooperates with the recovery container (35) and the sealing system (102); and the power assembly (130) is in communication with the recovery container (35). By means of the cooperation of all parts, rapid supplementation of the finishing medium of the sealing system is realized, ensuring the efficiency of finishing processing. Further provided is a finishing method.

IPC Classes  ?

• B24B 31/116 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
• B24B 31/12 - AccessoriesProtective equipment or safety devicesInstallations for exhaustion of dust or for sound absorption specially adapted for machines covered by group

Abstract

A polishing apparatus, a polishing method and a sealing system. The polishing apparatus (100) comprises a thrust system (101); a plurality of sealing systems (102), wherein each sealing system (102) comprises a piston (21) and a cylinder body (18) matched with the piston (21); a plurality of conveying pipeline systems (103), wherein each conveying pipeline system (103) conveys a polishing medium (8) contained in the corresponding sealing system (102) to different ports of an inner flow channel workpiece(34) being polished, and the plurality of sealing systems (102) are communicated by means of the inner flow channel workpiece (34). The thrust system (101) of the polishing apparatus comprises vertical plunger pumps (5). The vertical plunger pumps (5) are connected to the pistons (21) to provide a driving force, so that the pistons (21) can move relative to the cylinder body (18) in the vertical direction. The multi-stage pipeline comprises a first-stage pipeline (22), and a second-stage pipeline (23) adjacent to the downstream of the first-stage pipeline. The first-stage pipeline (22) comprises a curved structure connected to an outlet end (190) of the cylinder body (18), and the curved structure is connected to the horizontally-extending second-stage pipeline (23). The present polishing apparatus, polishing method and sealing system can ensure the pressure stability during the polishing process, thereby achieving reliable

IPC Classes  ?

• B24B 31/116 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
• B24B 31/00 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor
• B24B 31/10 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving other means for tumbling of work
• B24B 1/00 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes