CN114905386A - Pendant pretreatment device and method suitable for uniform corrosion rate test - Google Patents
Pendant pretreatment device and method suitable for uniform corrosion rate test Download PDFInfo
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- CN114905386A CN114905386A CN202110133399.0A CN202110133399A CN114905386A CN 114905386 A CN114905386 A CN 114905386A CN 202110133399 A CN202110133399 A CN 202110133399A CN 114905386 A CN114905386 A CN 114905386A
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- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 230000007797 corrosion Effects 0.000 title claims abstract description 65
- 238000005260 corrosion Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 129
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 238000005498 polishing Methods 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000009471 action Effects 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 47
- 239000002184 metal Substances 0.000 abstract description 47
- 238000000227 grinding Methods 0.000 abstract description 9
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a pendant pretreatment device and method suitable for a uniform corrosion rate test, and belongs to the technical field of pendant treatment for corrosion tests. The aluminum alloy polishing device comprises a fixing mechanism, a piston type steel rod and an aluminum alloy body, wherein the fixing mechanism is connected with a base box, the piston type steel rod drives the aluminum alloy body to move up and down when moving up and down, the aluminum alloy body and the fixing mechanism are opposite in position, a to-be-processed hanging piece fixed on the fixing mechanism is mechanically polished through a polishing body fixed on the aluminum alloy body, the fixing mechanism is a rotating platform, the rotating platform is connected onto the base box, a motor is arranged in the base box, and the motor is used for driving the rotating platform to rotate. The device disclosed by the invention is used for contacting the abrasive paper with the metal sheet through mechanical control, adjusting the combination force of the abrasive paper and the metal sheet through the displayed contact pressure, and grinding the metal sheet in a rotating manner. The mechanical polishing mode can effectively remove the oxide film on the surface of the metal sheet, so that the metal corrosion test data is more objective and effective.
Description
Technical Field
The invention belongs to the technical field of pendant treatment for corrosion tests, and particularly relates to a pendant pretreatment device and method suitable for a uniform corrosion rate test, which are mainly suitable for the oxidation film polishing pretreatment of a metal steel sheet in JB/T7901-1999 Metal Material laboratory Uniform corrosion full immersion test method.
Background
In daily production and life, corrosive substances are substances which, through chemical action, cause serious damage when contacting biological tissues, or which, in case of leakage, seriously damage or even destroy other goods or means of transport. In order to evaluate the corrosion rate of a chemical substance to a medium of a metal steel structure, a test method for judging the corrosion strength of a liquid substance to the metal is established in JB/T7901-1999 standard. The method comprises the steps of placing liquid substances into two designated glass reaction containers, wherein each container at least contains 1.5L of the liquid substances, maintaining the temperature at 55 +/-1 ℃, then placing metal sheets (steel sheets) with designated specifications into containers containing liquid chemical substances in a full-immersion mode for at least seven days, pretreating the metal sheets, and judging the corrosivity of the liquid substances according to the uniform corrosion rate.
Before the metal sheet is used for testing, the oxide film formed on the surface of the metal sheet has a protection effect on a metal piece, has a certain passivation effect on a corrosion process and has a great influence on the judgment of a test result, so the oxide film on the surface of the metal sheet needs to be treated before the metal sheet is used. The JB/T7901-1999 standard removes the oxide film on the metal surface by sanding, and the sanding method commonly used at present is manual sanding, which is time-consuming and uneven, and is easy to cause injury to fingers of experimenters during sanding. 201922066383.3 discloses a steel tube inner wall polishing device with clamping function, which comprises a supporting table, a clamping mechanism, a servo motor and a polishing mechanism, wherein the servo motor is arranged in the inner cavity of the supporting table, a slide block is connected on a screw rod and is slidably connected at the bottom of a groove, a connecting seat is fixedly connected at the top of the slide block, one end of a connecting rod is hinged on the connecting seat, two groups of telescopic rods are arranged, the two groups of telescopic rods are symmetrically arranged at two ends of the inner cavity of the supporting table, the distance between the slide blocks is adjusted through the designed clamping mechanism by the servo motor, so that the positions of supporting plates are adjusted, steel tubes with different sizes are supported and fixed, meanwhile, the arranged clamping plates further clamp the steel tubes at the top of the steel tubes, the fixing effect on the steel tubes is improved, in addition, a baffle is arranged at one side of the steel tubes far away from the polishing end, the stability of the steel tubes during polishing is improved, the polishing effect is better; application number 202010355241.3 discloses a metal material surface grinding device, most can not multi-angle diversified polish to current metal material surface grinding device, lead to the inefficiency of polishing, the poor problem of quality of polishing, the scheme of play, it includes the base, the top central point fixed mounting of base has the seat of placing, and the top of placing the seat installs fixed establishment, the both sides of placing the seat all are equipped with the backup pad of fixed mounting in the base top, and the top fixed mounting of two backup pads has same footstock, install grinding machanism on the footstock, and grinding machanism is connected with the drive mechanism who is arranged in two backup pads in, grinding machanism and drive mechanism all are connected with fixed establishment, it can multi-angle carry out the metal material surface and polish, not only the efficiency of polishing has been improved, the quality of polishing has also been strengthened. Application number 201911125214.0 discloses a metal grinding device, including the support frame, the top fixed mounting of support frame has the mount, and the top fixed mounting of mount inner chamber has the guide rail, and the slidable mounting of guide rail has the sliding sleeve, and the bottom of sliding sleeve has the head of polishing through cylinder and motor fixed mounting, and the bottom of mount inner chamber is provided with the processing platform in the below that lies in the head of polishing, and the both sides at processing bench top all are provided with fixed subassembly. It crosses guide rail and sliding sleeve and can control the regulation to polishing head position, and it is more convenient to polish to the metal, can fix metal workpiece through fixed subassembly, and the clamp splice of fixed subassembly side can be changed according to metal workpiece's shape simultaneously, can absorb the clearance through suction hood, dust storage box and dust absorption pump with the dust that the in-process produced of polishing, prevents that the dust is too much to cause harm to operating personnel health. Application number 201822037801.1 discloses aluminum alloy ex-trusions surface grinding device, comprising a base plate, surface mounting has the landing leg under the bottom plate, branch is all installed to bottom plate upper surface both sides, the hack lever is installed on two branch tops, bottom plate upper surface both sides are all seted up flutedly, the pulley is all installed to bottom plate upper surface both sides, and the pulley is located directly over the recess, aluminum alloy ex-trusions has been placed to two pulley upper ends, the threaded rod is all installed to two branch lower extreme one sides, and the threaded rod runs through branch, and extend to the branch opposite side, the clamp plate is installed to the one end of branch one side threaded rod, and clamp plate top surface height is no longer than aluminum alloy ex-trusions top plane place height, U type frame is all installed to hack lever lower surface both sides, the second spout has been seted up on U type frame surface.
Although the prior art has made relevant research on the polishing device, the fully automatic mechanical polishing device for removing the oxide film on the metal surface in the JB/T7901-1999 standard has not been provided yet.
Disclosure of Invention
One of the objects of the present invention is to provide a pendant pretreatment device for a uniform corrosion rate test, which changes the conventional sanding method by mechanically controlling to bring the sandpaper into contact with the metal sheet, adjusting the bonding strength between the sandpaper and the metal sheet by the displayed contact pressure, and sanding the metal sheet by rotation. The mechanical polishing mode can effectively remove the oxide film on the surface of the metal sheet, so that metal corrosion test data are more objective and effective, the polished metal sheet is more uniform in batch, the problem of uneven use force in the manual polishing process is solved, and the experimental personnel cannot be injured in the polishing process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the pendant pretreatment device comprises a fixing mechanism, a piston type steel rod and an aluminum alloy body, wherein the fixing mechanism is connected with a base box, the piston type steel rod drives the aluminum alloy body to move up and down when moving up and down, the aluminum alloy body and the fixing mechanism are opposite in position, and a pendant to be treated fixed on the fixing mechanism is mechanically polished through a polishing body fixed on the aluminum alloy body.
The pendant pretreatment device suitable for the uniform corrosion rate test comprises a fixing mechanism, a rotating platform, a motor and a control device, wherein the fixing mechanism is the rotating platform, the rotating platform is connected to the base box, the motor is arranged in the base box, and the motor is used for driving the rotating platform to rotate.
The above-mentioned pendant pretreatment device for uniform corrosion rate test, the above-mentioned rotary platform include the rotary platform body and be located a plurality of concave part on the above-mentioned rotary platform body, the above-mentioned rotary platform body is circular, the above-mentioned concave part of interval uniform arrangement in its circumferencial direction, wherein be used for placing pending pendant in each concave part.
The pendant pretreatment device suitable for the uniform corrosion rate test is characterized in that the rotating platform body is made of aluminum alloy, a pressure sensor is arranged in the rotating platform body, and the pressure sensor senses the contact pressure between the aluminum alloy body and the rotating platform body.
The pendant pretreatment device for the uniform corrosion rate test is characterized in that the aluminum alloy body is connected below the piston type steel rod.
The pendant pretreatment device suitable for the uniform corrosion rate test comprises an aluminum alloy body and an aluminum alloy plate, wherein the aluminum alloy body comprises an aluminum alloy column and the aluminum alloy plate, the aluminum alloy column is connected below the piston type steel rod through threads, the aluminum alloy plate is connected below the aluminum alloy column, and the aluminum alloy plate is used for fixing a grinding body.
The pendant pretreatment device suitable for the uniform corrosion rate test is characterized in that two telescopic rods are arranged on two sides of the base box, the top ends of the two telescopic rods are connected with the piston-type steel rod, the piston-type steel rod and the two telescopic rods jointly form a telescopic mechanism, and the aluminum alloy body can move up and down under the action of the telescopic mechanism.
The pendant pretreatment device for the uniform corrosion rate test is characterized in that the base box is provided with a pressure display, the pressure display is connected with the pressure sensor, and the contact pressure between the aluminum alloy body and the rotating platform body is displayed through the pressure display.
Foretell be applicable to pendant pretreatment device for even corrosion rate test, be provided with the timing display on foretell base case, still be provided with master switch, the switch that is used for controlling piston steel pole, timing display and speed regulator on the foretell base case.
Foretell being applicable to pendant pretreatment device for even corrosion rate is experimental, foretell body of polishing is abrasive paper, and foretell abrasive paper is detachable to be connected in the below of foretell aluminum alloy plate.
Foretell before processing apparatus of pendant for even corrosion rate test, foretell abrasive paper is provided with 5 ~ 10 layers, realizes detachable the connection through screw and aluminium alloy strip between foretell abrasive paper and the aluminium alloy plate.
Another object of the present invention is to provide a pendant pretreatment method suitable for a uniform corrosion rate test, which adopts the pendant pretreatment device suitable for a uniform corrosion rate test, and sequentially comprises the following steps:
s1, placing the pendant to be polished in a groove part on the rotary platform body;
s2, opening a switch for controlling the piston type steel rod, and adjusting the position of the piston type steel rod to enable the piston type steel rod to be in contact with the rotary platform body, and then determining the downward moving termination position according to the reading displayed by the pressure display;
s3, adjusting the rotating speed of the rotating platform body through the motor, starting timing through the timing display after the rotating platform body rotates, turning off the power supply of the motor after the predicted time is reached, turning off the timing display, and adjusting a button capable of controlling the piston type steel rod to move so that the steel rod slowly moves upwards;
and S4, turning over the pendant which is not polished, repeating the steps S1-S3 to polish the other side of the pendant, turning off the power supply after polishing is finished, and taking out the pendant.
The shape of the groove part is matched with that of the pendant to be polished, and when the timing display displays polishing for 1-2 min, the power supply of the motor is turned off to stop polishing.
Compared with the prior art, the invention has the following beneficial technical effects:
compared with the traditional manual polishing device, the pendant pretreatment device suitable for the uniform corrosion rate test provided by the invention has the advantages that the abrasive paper is in contact with the metal sheet through mechanical control, the combination force of the abrasive paper and the metal sheet is adjusted through the displayed contact pressure, and the metal sheet is polished in a rotating manner. This kind of mechanical polishing mode can effectually remove the oxidation film on sheetmetal surface to make metal corrosion test data more objective effective, the sheetmetal batch of polishing is comparatively even, has solved the inhomogeneous problem of artifical in-process use dynamics of polishing, can not cause the injury to the experimenter at the in-process of polishing. The defects that the traditional manual polishing mode consumes time, the surface of the metal sheet is polished unevenly, the repeatability of test results is poor and the like are overcome.
According to the pendant pretreatment method for the uniform corrosion rate test, provided by the invention, the surface of the metal sheet can be polished more carefully and uniformly by adjusting the rotating speed and the pressure, so that an oxide film on the surface is removed more effectively, and the repeatability of the batch-processed pendant test result is better. The defects of time consumption and labor consumption of manual polishing are overcome, and the phenomenon of abrasion and scratch of fingers of experimenters can be avoided.
The pendant pretreatment device for the uniform corrosion rate test is simple to operate, low in manufacturing cost and capable of being widely applied to testing of corrosivity of metal parts in the fields of oil products, dangerous chemical detection and the like.
Drawings
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a front view of a pendant pretreatment device for a uniform corrosion rate test according to the present invention;
FIG. 2 is a top view of a pendant pretreatment device for a uniform corrosion rate test according to the present invention;
FIG. 3 is a schematic diagram of a groove structure of a rotating platform body of the pendant pretreatment device for the uniform corrosion rate test according to the present invention;
FIG. 4 is a schematic view of installation of abrasive paper on the bottom surface of an aluminum alloy plate of a pendant pretreatment device for a uniform corrosion rate test according to the present invention;
in the figure:
1. base case, 2, piston steel pole, 3, the aluminum alloy body, 31, aluminum alloy column, 32, aluminum alloy plate, 4, rotary platform body, 5, concave part, 6, motor, 7, pressure sensor, 8, telescopic link, 9, abrasive paper, 10, aluminum alloy strip, 11, screw.
Detailed Description
The invention provides a pendant pretreatment device and method suitable for a uniform corrosion rate test, and the invention is described in detail below with reference to specific embodiments in order to make the advantages and technical scheme of the invention clearer and clearer.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the article in the drawings is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the element or feature. Thus, the exemplary term "below" can encompass both an orientation of below and above. Other orientations of the components are possible (rotated 90 degrees or otherwise) and the spatially relative terms used herein should be interpreted accordingly.
Referring to fig. 1 and 2, the pendant pretreatment device for the uniform corrosion rate test comprises a fixing mechanism connected with a base box 1, a piston type steel rod 2 and an aluminum alloy body 3, wherein the piston type steel rod 2 drives the aluminum alloy body 3 to move up and down when moving up and down, the aluminum alloy body and the fixing mechanism are opposite in position, and a pendant to be treated fixed on the fixing mechanism is mechanically polished through a polishing body fixed on the aluminum alloy body.
The pendant pretreatment device suitable for the uniform corrosion rate test comprises a fixing mechanism, a rotating platform, a motor 6 and a control device, wherein the fixing mechanism is the rotating platform, the rotating platform is connected to the base box, and the motor 6 is arranged in the base box and is used for driving the rotating platform to rotate.
The pendant pretreatment device suitable for the uniform corrosion rate test comprises a rotating platform body and a plurality of groove portions, wherein the groove portions are located on the rotating platform body, the rotating platform body 4 is circular, the groove portions 5 are evenly arranged in the circumferential direction of the rotating platform body at intervals, and pendants to be treated are placed in each groove portion.
The pendant pretreatment device suitable for the uniform corrosion rate test is characterized in that the rotating platform body is made of aluminum alloy, the pressure sensor 7 is arranged in the rotating platform body, and the pressure sensor 7 senses the contact pressure between the aluminum alloy body and the rotating platform body.
The pendant pretreatment device for the uniform corrosion rate test is characterized in that the aluminum alloy body is connected below the piston type steel rod 2.
The pendant pretreatment device suitable for the uniform corrosion rate test comprises an aluminum alloy body and a polishing body, wherein the aluminum alloy body comprises an aluminum alloy column 31 and an aluminum alloy plate 32, the aluminum alloy column is connected below the piston type steel rod through threads, the aluminum alloy plate is connected below the aluminum alloy column, and the aluminum alloy plate is used for fixing the polishing body.
The pendant pretreatment device suitable for the uniform corrosion rate test is characterized in that two telescopic rods 8 are arranged on two sides of the base box, the top ends of the two telescopic rods 8 are connected with the piston type steel rod 2, the piston type steel rod 2 and the two telescopic rods jointly form a telescopic mechanism, and the aluminum alloy body can move up and down under the action of the telescopic mechanism.
The pendant pretreatment device for the uniform corrosion rate test is characterized in that the base box is provided with a pressure display, the pressure display is connected with the pressure sensor 7, and the contact pressure between the aluminum alloy body and the rotating platform body is displayed through the pressure display.
Foretell be applicable to pendant pretreatment device for even corrosion rate test, be provided with the timing display on foretell base case, still be provided with master switch, the switch that is used for controlling piston steel pole, timing display and speed regulator on the foretell base case.
Foretell being applicable to experimental pendant pretreatment device that uses of even corrosion rate, foretell body of polishing is abrasive paper 9, and foretell abrasive paper is detachable to be connected in the below of foretell aluminum alloy plate.
Foretell being applicable to experimental pendant pretreatment device that uses of even corrosion rate, foretell abrasive paper is provided with 5 ~ 10 layers, realizes detachable the connection through screw 11 and aluminium alloy strip 10 between foretell abrasive paper and the aluminium alloy plate.
Example 1:
first, the main components related to the present invention will be explained in detail:
the motor 6: as a power source, is used for driving the rotary platform to rotate. The rotating speed of the motor can be adjusted through a rotating speed adjuster, and different gears can be adjusted according to required power.
Rotating the platform: the rotary platform is made of aluminum alloy, and the aluminum alloy is mainly used for reducing the mass of the rotary platform and facilitating rotation. Rotary platform includes the rotary platform body and is located the concave part on the rotary platform body, is equipped with pressure sensor at rotary platform body inside, can the perception aluminum alloy plate and the rotary platform contact pressure between the body.
The groove part can be designed into 6 pieces or 12 pieces according to actual requirements (as shown in figure 3). In the manual of test standards, the specification of the metal sheet is 50mm long, 20mm wide and 2mm thick, so that the groove part of the present invention is preferably 51mm long, 21mm wide and 1.5mm deep. Every recess portion top center all has the width to be 10mm and with the hole of the equal degree of depth of recess, the hole is not only for getting in order to put the lacing film, is again for conveniently cleaing away the metal powder that produces after polishing.
Piston steel pole: the contact pressure between the aluminum alloy plate and the rotary platform body can be adjusted by controlling the up-and-down movement thereof.
An aluminum alloy body: the abrasive paper is a whole formed by welding an aluminum alloy plate and an aluminum alloy column together, and the top of the aluminum alloy column is connected with a steel rod through threads, so that an aluminum alloy body can be freely detached to replace abrasive paper. Sand paper is equipped with to aluminum alloy plate bottom, can overlap multilayer sand paper and pass through aluminum alloy strip and screw fixation on aluminum alloy plate, and it is mainly for conveniently discharging after each layer of sand paper consumes to place multilayer sand paper, directly uses next layer of sand paper, as shown in figure 4.
The invention relates to a pendant pretreatment device suitable for a uniform corrosion rate test, which comprises a base box, a piston type steel rod, an aluminum alloy body, an aluminum alloy column, an aluminum alloy plate, a rotary platform body, a groove part, a motor, a pressure sensor, telescopic rods and abrasive paper, wherein the base box is positioned at the bottommost part of the device, the motor, a pressure display, a timer and a main switch are all positioned in the base box, the number of the telescopic rods is two, the telescopic rods are positioned at two sides of the base box, the top of each telescopic rod is provided with the piston type steel rod, the rotary platform body, the aluminum alloy column and the aluminum alloy plate are arranged in a space formed by the piston type steel rod, the telescopic rods and the base box, the aluminum alloy column is connected with the piston type steel rod through threads, the piston type steel rod drives the aluminum alloy column to move up and down, the aluminum alloy plate is connected below the aluminum alloy column and used for fixing the abrasive paper, 5 layers are preferably fixed in the embodiment, the abrasive paper is removed after being consumed, and the next layer of abrasive paper can be replaced directly without being installed.
Example 2:
first, the main components related to the present invention will be explained in detail:
the motor 6: as a power source, is used for driving the rotary platform to rotate. The rotating speed of the motor can be adjusted through a rotating speed adjuster, and different gears can be adjusted according to required power.
Rotating the platform: the rotary platform is made of aluminum alloy, and the aluminum alloy is mainly used for reducing the mass of the rotary platform and facilitating rotation. Rotary platform includes the rotary platform body and is located the concave part on the rotary platform body, is equipped with pressure sensor at rotary platform body inside, can the perception aluminum alloy plate and the rotary platform contact pressure between the body.
The groove part can be designed into 6 pieces or 12 pieces according to actual requirements (as shown in figure 3). In the manual of test standards, the specifications of the metal sheet are 50mm long, 20mm wide and 2mm thick, so that the groove part of the invention is preferably 51mm long, 21mm wide and 1.5mm deep. Every concave part top center all has the hole that is wide for 10mm and with the equal degree of depth of recess, and the hole is not only for conveniently getting and put the hanging piece, is again for conveniently cleaing away the metal powder that produces after polishing.
Piston steel pole: the contact pressure between the aluminum alloy plate and the rotary table body can be adjusted by controlling the up-and-down movement thereof.
An aluminum alloy body: the abrasive paper is a whole formed by welding an aluminum alloy plate and an aluminum alloy column together, and the top of the aluminum alloy column is connected with a steel rod through threads, so that an aluminum alloy body can be freely detached to replace abrasive paper. Sand paper is equipped with to aluminum alloy plate bottom, can overlap multilayer sand paper and pass through aluminum alloy strip and screw fixation on aluminum alloy plate, and it is mainly for conveniently discharging after each layer of sand paper consumes to place multilayer sand paper, directly uses next layer of sand paper, as shown in figure 4.
The invention relates to a pendant pretreatment device suitable for a uniform corrosion rate test, which comprises a base box, a piston type steel rod, an aluminum alloy body, an aluminum alloy column, an aluminum alloy plate, a rotary platform body, a groove part, a motor, a pressure sensor, telescopic rods and abrasive paper, wherein the base box is positioned at the bottommost part of the device, the motor, a pressure display, a timer and a main switch are all positioned in the base box, the number of the telescopic rods is two, the telescopic rods are positioned at two sides of the base box, the top of each telescopic rod is provided with the piston type steel rod, the rotary platform body, the aluminum alloy column and the aluminum alloy plate are arranged in a space formed by the piston type steel rod, the telescopic rods and the base box, the aluminum alloy column is connected with the piston type steel rod through threads, the piston type steel rod drives the aluminum alloy column to move up and down, the aluminum alloy plate is connected below the aluminum alloy column and used for fixing the abrasive paper, 10 layers are preferably fixed in the embodiment, the abrasive paper is removed after being consumed, and the next layer of abrasive paper can be replaced directly without being installed.
The rotary platform body is preferably circular in the embodiment, the groove parts are uniformly distributed in the circumferential direction of the rotary platform body, the shape of each groove part is matched with the shape of a pendant to be processed, the groove parts are determined to be 51mm long, 21mm wide and 1.5mm deep, a hole which is 10mm wide and has the same depth as the groove is formed in the center of the top of each groove, the pressure display is connected with the pressure sensor, and the contact pressure between the aluminum alloy body and the rotary platform body is displayed through the pressure display. As shown in figure 4, the sand paper and the aluminum alloy plate are detachably connected through screws and aluminum alloy strips, and the sand paper is convenient to replace.
Example 3:
the invention relates to a pendant pretreatment device suitable for a uniform corrosion rate test, which comprises a base box, a piston type steel rod, an aluminum alloy body, an aluminum alloy column, an aluminum alloy plate, a rotary platform body, a groove part, a motor, a pressure sensor, a telescopic rod and abrasive paper, wherein the base box is positioned at the bottommost part of the device, the motor, a pressure display, a timer and a master switch are all positioned in the base box, the two telescopic rods are positioned at two sides of the base box, the top of the telescopic rod is provided with the piston type steel rod, the rotary platform body, the aluminum alloy column and the aluminum alloy plate are arranged in a space formed by the piston type steel rod, the telescopic rod and the base box, the aluminum alloy column is connected with the piston type steel rod through threads, the abrasive paper column is driven to move up and down through the piston type steel rod, the aluminum alloy plate is connected below the aluminum alloy column and used for fixing, 8 layers are preferably fixed in the embodiment, the abrasive paper is removed after being consumed, and the next layer of abrasive paper can be directly replaced without being installed.
The groove part can be designed to be 6 pieces according to actual requirements. In the manual of test standards, the specifications of the metal sheet are 50mm long, 20mm wide and 2mm thick, so that the groove part of the invention is preferably 51mm long, 21mm wide and 1.5mm deep. Every recess portion top center all has the width to be 10mm and with the hole of the equal degree of depth of recess, the hole is not only for getting in order to put the lacing film, is again for conveniently cleaing away the metal powder that produces after polishing.
When the device of the invention is used, the test is carried out according to the following steps:
firstly, putting a metal sheet to be polished into a groove on a rotary platform.
And secondly, the steel rod is slowly moved downwards by adjusting a button which enables the piston type steel rod to move, and after the aluminum alloy plate is contacted with the rotary platform, the downward movement stop position is determined by the number displayed by the pressure display.
And thirdly, selecting the required rotating speed by adjusting a rotating speed regulator, turning on a motor power switch after setting, turning on a timer to start timing after the rotating platform rotates, turning off the motor power supply after the predicted time (about 1-2 min) is reached, and turning off a timing display. The button which can control the movement of the steel rod is adjusted to make the steel rod move up slowly.
And fourthly, turning over the metal sheet, and repeating the steps 1-3 to polish the other side. And after polishing is finished, all power supplies are turned off, and the hanging pieces are taken out.
Note: if the pressure between the aluminum alloy plate and the rotary platform is too large, the motor is easy to rotate, and the motor should be rotated by adjusting the pressure and the rotating speed to be proper,
The pendant pretreatment device for the uniform corrosion rate test provided by the invention overcomes the technical defects that the conventional manual polishing mode consumes time, the surface of a metal sheet is polished unevenly, the repeatability of a test result is poor, and the fingers of experimenters are easily injured in the polishing process. The pendant pretreatment device for the uniform corrosion rate test enables abrasive paper to be in contact with a metal sheet through mechanical control, adjusts the combination force of the abrasive paper and the metal sheet through displayed contact pressure, and polishes the metal sheet in a rotating mode. This kind of mechanical polishing mode can effectually remove the oxidation film on sheetmetal surface to make metal corrosion test data more objective effective, the sheetmetal batch of polishing is comparatively even, has solved the inhomogeneous problem of artifical in-process use dynamics of polishing, can not cause the injury to the experimenter at the in-process of polishing.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto.
Although terms such as aluminum alloy body, rotating platform body, grooved portion, piston steel rod, etc. are used more herein, the possibility of using other terms is not excluded, and these terms are used only for the convenience of describing and explaining the essence of the present invention; they are to be construed as being without limitation to the spirit of the present invention.
It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (13)
1. The pendant pretreatment device is characterized by comprising a fixing mechanism, a piston type steel rod and an aluminum alloy body, wherein the fixing mechanism is connected with a base box, the piston type steel rod drives the aluminum alloy body to move up and down when moving up and down, the aluminum alloy body is opposite to the fixing mechanism in position, and a pendant to be treated fixed on the fixing mechanism is mechanically polished through a polishing body fixed on the aluminum alloy body.
2. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 1, characterized in that: the fixing mechanism is a rotating platform, the rotating platform is connected to the base box, a motor is arranged in the base box, and the motor is used for driving the rotating platform to rotate.
3. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 2, characterized in that: the rotary platform comprises a rotary platform body and a plurality of groove portions located on the rotary platform body, the rotary platform body is circular, the groove portions are evenly arranged in the circumferential direction at intervals, and pendants to be processed are placed in each groove portion.
4. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 3, characterized in that: the rotary platform body is made of aluminum alloy, a pressure sensor is arranged in the rotary platform body, and the pressure sensor senses the contact pressure between the aluminum alloy body and the rotary platform body.
5. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 2, characterized in that: the aluminum alloy body is connected below the piston type steel rod.
6. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 5, characterized in that: the aluminum alloy body include aluminum alloy post and aluminum alloy plate, the aluminum alloy post pass through threaded connection and be in the below of piston steel pole, the aluminum alloy plate connect the below of aluminum alloy post, the aluminum alloy plate be used for fixed body of polishing.
7. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 2, characterized in that: the two sides of the base box are provided with two telescopic rods, the top ends of the two telescopic rods are connected with the piston type steel rod, the piston type steel rod and the two telescopic rods jointly form a telescopic mechanism, and the aluminum alloy body can move up and down under the action of the telescopic mechanism.
8. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 4, characterized in that: the base box is provided with a pressure display, the pressure display is connected with the pressure sensor, and the contact pressure between the aluminum alloy body and the rotating platform body is displayed through the pressure display.
9. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 8, wherein: the base box is provided with a timing display, and the base box is also provided with a main switch, a switch for controlling the piston type steel rod, the timing display and a rotating speed regulator.
10. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 6, characterized in that: the body of polishing be abrasive paper, detachable the connection of abrasive paper in aluminum alloy plate's below.
11. The pendant pretreatment device suitable for the uniform corrosion rate test according to claim 10, characterized in that: abrasive paper be provided with 5 ~ 10 layers, abrasive paper and aluminum alloy plate between realize detachable the connection through screw and aluminum alloy strip.
12. A pretreatment method of a pendant suitable for a uniform corrosion rate test is characterized by adopting the pretreatment device of the pendant suitable for the uniform corrosion rate test as claimed in any one of claims 1 to 11, and the method sequentially comprises the following steps:
s1, placing the pendant to be polished in a groove part on the rotary platform body;
s2, opening a switch for controlling the piston type steel rod, and adjusting the position of the piston type steel rod to enable the piston type steel rod to be in contact with the rotary platform body, and then determining the downward moving termination position according to the reading displayed by the pressure display;
s3, adjusting the rotating speed of the rotating platform body through the motor, starting timing through the timing display after the rotating platform body rotates, turning off the power supply of the motor after the predicted time is reached, turning off the timing display, and adjusting a button capable of controlling the piston type steel rod to move so that the steel rod slowly moves upwards;
and S4, turning over the pendant which is not polished, repeating the steps S1-S3 to polish the other side of the pendant, turning off the power supply after polishing is finished, and taking out the pendant.
13. The pendant pretreatment method suitable for the uniform corrosion rate test according to claim 12, characterized by comprising the following steps: the shape of the groove part is matched with that of the pendant to be polished, and when the timing display displays that polishing is carried out for 1-2 min, the power supply of the motor is turned off to stop polishing.
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