CN211112304U - Electrochemical electrolytic plating device - Google Patents

Abstract

The utility model discloses an electrochemical electrolytic plating device, belonging to the electrochemical field, comprising a supporting device, an electric motor is fixedly arranged above the supporting device, an output shaft of the electric motor passes through the supporting device and is fixedly connected with the commutator device, the commutator device is fixedly arranged below the supporting device, the commutator device is arranged below the supporting device and fixedly provided with the clamping and adjusting device, the supporting device consists of a supporting plate, a right-angle rod I, a right-angle rod II, a guide plate, a guide groove, a bottom rod I, a bottom rod II, a cross rod, a folding connecting rod, a supporting connecting rod and a protective frame, a protective frame is fixedly arranged above the supporting plate, a pair of right-angle rods I are arranged on the side surface of the supporting plate, a guide plate is fixedly arranged at one end of each right-angle rod I, the guide way is installed to the deflector, guide way downside fixed mounting has a pair of sill bar I, I one end fixed mounting of sill bar has thin neck sucking disc.

Description

Electrochemical electrolytic plating device

Technical Field

The invention relates to an electrochemical electrolytic plating device, belonging to the field of electrochemistry.

Background

According to investigation, at present, when materials are electrolytically plated in a common laboratory, three electrodes are usually directly placed in a beaker solution or are suspended in the beaker by a hanging bracket, but the distance between the electrode materials is difficult to fix, so that the electrode materials swing in the solution to influence the electrolytic plating process, or the electrode materials move in the solution and cannot realize regular movement, and therefore, an electrochemical electrolytic plating device capable of fixing the electrodes and enabling the electrode materials to move regularly in the solution is needed.

Disclosure of Invention

The invention aims to provide an electrochemical electrolytic plating device.

In order to achieve the purpose, the invention adopts the following technical measures:

the electrochemical electrolytic plating device comprises a supporting device, wherein a motor is fixedly mounted above the supporting device, an output shaft of the motor penetrates through the supporting device and is fixedly connected with a commutator device, the commutator device is fixedly mounted below the supporting device, a clamping and adjusting device is fixedly mounted below the commutator device, and the commutator device and the clamping and adjusting device form a power-on circuit through a lead.

Furthermore, the supporting device consists of a supporting plate, a right-angle rod I, a right-angle rod II, a guide plate, a guide groove, a bottom rod I, a bottom rod II, a cross rod, a bevel connecting rod, a supporting connecting rod and a protective frame, a protective frame is fixedly arranged above the supporting plate, a pair of right-angle rods I are arranged on the side surface of the supporting plate, a guide plate is fixedly arranged at one end of each right-angle rod I, the guide plate is provided with a guide groove, a pair of bottom rods I are fixedly arranged at the lower side of the guide groove, one end of each bottom rod I is fixedly provided with a thin neck sucker, a pair of right-angle rods II are fixedly arranged at the positions, opposite to the right-angle rods I, on one side of the supporting plate, one end of each right-angle rod II is hinged with one end of a supporting connecting rod, the other end of the supporting connecting rod is hinged with one end of the bevel connecting rod, the other end of the bevel connecting rod is hinged with one end of the bottom rod II, a cross rod is fixedly installed between the bottom rods II, and a thin neck sucking disc is fixedly installed at the other end of each bottom rod II.

Furthermore, a return spring is installed between the supporting connecting rod and the angle folding connecting rod, the return spring is sleeved on a fastening bolt, and the supporting connecting rod is hinged to the angle folding connecting rod through the fastening bolt.

Furthermore, a jacking bolt is installed on the guide groove.

Further, the narrow neck sucker is made of rubber materials, and the diameter of the middle position of the narrow neck sucker (shown in figure 9) is smaller than that of the upper part of the narrow neck sucker.

Furthermore, the commutator device comprises a half-open barrel, a slip ring I, a slip ring II, a slip ring III, a reversing rod I, a reversing rod II, a reversing rod III, a supercharger, a connecting sheet I and a connecting sheet II, wherein the half-open barrel is fixedly arranged at the lower part of a supporting plate, the slip ring I is fixedly arranged at the inner side of the half-open barrel, the connecting sheet I is fixedly arranged at the outer side of the slip ring I, the slip ring II is arranged at the lower part of the slip ring II, the slip ring II is fixedly arranged at the inner side of the half-open barrel, the slip ring III is fixedly arranged at the inner side of the half-open barrel, the connecting sheet I is fixedly arranged at the outer side of the slip ring III, the slip ring I is connected with the reversing rod I in a sliding manner, the connecting sheet II is fixedly arranged at the side surface of one end of the slip ring I, the slip ring II is connected, the slip ring III is connected with the reversing rod III in a sliding mode, a connecting sheet II is fixedly mounted on the side face of one end of the slip ring III, one end of the reversing rod I is fixedly connected with an output shaft of the motor through an insulating connector, the output shaft of the motor penetrates through the supporting plate I and is fixedly mounted on the upper portion of the supporting plate I, the other end of the reversing rod I is fixedly mounted on the bottom plate, one end of the reversing rod II is fixedly mounted on the bottom plate, and the other end of the reversing rod III is fixedly mounted on the bottom plate.

Furthermore, the reversing rod, the slip ring I, the slip ring II and the slip ring III are made of conductive metal materials.

Furthermore, reversing rod I, reversing rod II and reversing rod III are collectively called a reversing rod, a supercharger is arranged at one end of the reversing rod, which is in sliding contact with sliding ring I, sliding ring II and sliding ring III, the supercharger consists of a shell body and a pressurizing spring, the inside of the shell body is fixedly connected with one end of the reversing rod, the inside of the other end of the shell body is in sliding connection with the reversing rod, the inside of the shell body is provided with the pressurizing spring, two ends of the pressurizing spring are respectively in contact with the reversing rods at two ends of the shell body, a lead is arranged inside the spring, and two ends of the lead are fixedly connected with the reversing rods at two ends of the shell body.

Furthermore, a boss is arranged at one end of the reversing rod, which is in sliding connection with the supercharger.

Furthermore, sliding grooves are formed in the sliding ring I, the sliding ring II and the sliding ring III, and one ends of the reversing rods, which are in contact with the sliding ring I and the sliding ring II, are arc-shaped.

Furthermore, the clamping adjusting device is composed of a bottom plate, a primary connecting rod, a terminal rod and a three-jaw centering device, the upper portion of the bottom plate is hinged to one end of the primary connecting rod, the other end of the primary connecting rod is hinged to the terminal rod, the other end of the terminal rod is provided with the three-jaw centering device, the three-jaw centering device is connected with a connecting sheet II through a lead, the primary connecting rod, the terminal rod and the three-jaw centering device form clamping arms, and three groups of clamping arms are uniformly distributed on the circumference of the upper portion of the bottom plate.

Furthermore, the three-jaw centering device comprises clamping blocks and clamping springs, wherein three clamping blocks are uniformly distributed on the circumference of each clamping block, each clamping block penetrates through the terminal rod, and the clamping springs are arranged on the lower sides of the clamping blocks and the terminal rod.

Furthermore, the clamping block is made of metal copper, and the surface of the clamping block is plated with platinum.

The invention has the advantages that: the invention can make the electrode material needing electrochemical electrolysis or electroplating realize regular movement in the electrolysis or electroplating solution through the action of the commutator device, and simultaneously ensure continuous conduction in the movement process, because of the existence of the movement of the components, the concentration of the electrolyte or the electroplating solution of local solution generated in the electrolysis or electroplating process is effectively prevented from being too high or too low, the efficiency is effectively improved, the electrode material can be more conveniently clamped through the existence of the three-claw centering device, and the automatic centering of the electrode material is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the supporting device of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at C;

FIG. 4 is a schematic view of the commutator apparatus of the present invention;

FIG. 5 is a schematic view of the structure of the clamping adjustment device of the present invention;

FIG. 6 is an enlarged partial view taken at A in FIG. 5;

FIG. 7 is a schematic view II of the clamping adjustment device according to the present invention;

FIG. 8 is an enlarged partial view taken at B in FIG. 7;

FIG. 9 is a schematic view of the structure of the narrow neck sucker;

FIG. 10 is a schematic view of a reversing lever of the present invention;

FIG. 11 is a schematic view of the connecting buckle of the present invention;

FIG. 12 is a top view of the connector link of the present invention;

FIG. 13 is a cross-sectional view taken along section line D-D of FIG. 12;

FIG. 14 is a schematic view of the internal structure of the supercharger of the present invention;

FIG. 15 is a schematic view of the clamping block of the present invention.

In the figure: 1. support means 101, support plate 102I, right-angled bars I, 102 II, right-angled bars II, 103, guide plate 104, guide groove 105, top press bolt 106I, bottom bars I, 106 II, bottom bars II, 107, neck-narrowing suction cups 108, cross bar 109, angle link 1010, return spring 1011, fastening bolt 1012, support link 1013, fender bracket 2, commutator device 201, half-open barrel 202I, slip ring I, 202 II, slip ring II, 202 III, slip ring III, 203 bar 203, 203I, bar I, 203 II, bar II, 203 III, bar III, 204, supercharger 20401, housing body 20402, supercharging spring 205I, connection sheet I, 205 II, connection sheet II, 3, clamping adjusting means 301, bottom plate 302, primary link 303, terminal bar 304, clamping block 305, clamping spring 4, wire 5, motor, 6. an insulating connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-15, the present invention provides a technical solution: the electrochemical electrolytic plating device comprises a supporting device 1, wherein a motor 5 is fixedly mounted above the supporting device 1, an output shaft of the motor 5 penetrates through the supporting device 1 to be fixedly connected with a commutator device 2, the commutator device 2 is fixedly mounted below the supporting device 1, the commutator device 2 is lowered to be fixedly mounted with a clamping and adjusting device 3, and the commutator device 2 and the clamping and adjusting device 3 form a power-on circuit through a lead 4.

In order to ensure that the electrochemical electrolytic plating device can conveniently adjust the height, has better guidance and has observation performance, the supporting device 1 adopts an asymmetric design, the application of the guide plate 203 and the guide groove 104 determines that the guidance performance of the supporting device 1 is better, meanwhile, the other side of the supporting device is composed of a bevel connecting rod 109 and a supporting connecting rod 1012, and the vision obstruction condition of the device in the electrolytic or plating process is reduced, the supporting device 1 is composed of a supporting plate 101, a right-angle rod I102I, a right-angle rod II 102 II, a guide plate 103, a guide groove 104, a bottom rod I106I, a bottom rod II 106 II, a cross rod 108, a bevel connecting rod 109, a supporting connecting rod 1012 and a protective frame 1013, a protective frame 1013 is fixedly arranged above the supporting plate 101, a pair of right-angle rods I102I is arranged on the side surface of the supporting plate 101, the guide plate 103 is fixedly arranged at one end of the right-angle rod I102I, the guide plate 103 is provided, a pair of sill bar I106I is fixedly mounted to guide way 104 downside, I one end fixed mounting of sill bar I106 has thin neck sucking disc 107, a pair of right angle pole II 102 II of position fixed mounting relative with right angle pole I102I is being held on one side of layer board 101, II one end of right angle pole are articulated with supporting connecting rod 1012 one end, supporting connecting rod 1012's the other end is articulated with dog-ear connecting rod 109 one end, the dog-ear connecting rod 109 other end is articulated with II one end of sill bar 106, fixed mounting has horizontal pole 108 between II 106 II of sill bar, II other end fixed mounting of sill bar has thin neck sucking disc 107.

In order to adjust the height of the electrochemical electrolytic plating device conveniently, when the electrochemical electrolytic plating device is used, after the pressing device of the protection frame 1013 is pressed, the device automatically rebounds due to the action of the return spring 1010, the position can be conveniently selected in the rebounding process, then the device is fixed with the fastening bolt 1011 through the jacking bolt 105, the return spring 1010 is installed between the support connecting rod 1012 and the bevel connecting rod 109, the return spring 1010 is sleeved on the fastening bolt 1011, and the support connecting rod 1012 and the bevel connecting rod 109 are hinged through the fastening bolt 1011.

In order to make the device adapt to different heights of the plane of the installation position, the heights of two sides of the supporting device 1 can be independently controlled so as to balance the device, and the jacking bolts 105 are installed on the guide grooves 104.

In order to adapt the device to uneven surface at the installation position, the device can adapt to uneven surface by bending and deforming the thinner position of the thin neck suction cup 107, the thin neck suction cup 107 is made of rubber material, and the diameter of the middle position of the thin neck suction cup 107 (shown in figure 9) is smaller than that of the upper part of the thin neck suction cup 107.

In order to ensure that the electrochemical electrolytic plating device can realize that the plating or electrolytic electrode material can be continuously electrolyzed or plated in a moving state, the commutator device 2 consists of a half-open barrel 201, a slip ring I202I, a slip ring II 202 II, a slip ring III 202 III, a reversing rod I203I, a reversing rod II 203 II, a reversing rod III 203 III, a supercharger 204, a connecting piece I205I and a connecting piece II 205 II, the half-open barrel 201 is fixedly arranged at the lower part of a supporting plate 101, the slip ring I202I is fixedly arranged at the inner side of the half-open barrel 201, the connecting piece I205I is fixedly arranged at the outer side of the slip ring I202I, the slip ring II 202 II is fixedly arranged at the lower part of the slip ring II 202 II, the slip ring II 202 II is fixedly arranged at the inner side of the half-open barrel 201, the connecting piece I205I is fixedly arranged at the outer side of the slip ring II 202 II, the slip ring III 202 III is fixedly arranged at the inner side, a connecting piece I205I is fixedly arranged on the outer side of the slip ring III 202 III, the slip ring I202I is connected with a reversing rod I203I in a sliding manner, a connecting piece II 205 II is fixedly arranged on the side surface of one end of the slip ring I202I, the slip ring II 202 II is connected with the reversing rod II 203 II in a sliding manner, a connecting piece II 205 II is fixedly arranged on the side surface of one end of the slip ring II 202 II, the slip ring III 202 III is connected with the reversing rod III 203 III in a sliding manner, a connecting piece II 205 II is fixedly arranged on the side surface of one end of the slip ring III 202 III, one end of the reversing rod I203I is fixedly connected with an output shaft of the motor 5 through an insulating connector 6, the output shaft of the motor 5 is fixedly arranged on the upper part of the supporting plate 101I through the supporting plate 101I, the other end fixed mounting of reversing rod I203I is on bottom plate 301, the one end fixed mounting of reversing rod II 203 II is on bottom plate 301, the other end fixed mounting of reversing rod III 203 III is on bottom plate 301.

In order to simplify the structure of the commutator device 2, no additional conductive circuit needs to be designed, and the commutation rod 203, the slip ring i 202 i, the slip ring ii 202 ii and the slip ring iii 202 iii are made of conductive metal materials.

The reversing rod I203I, the reversing rod II 203 II and the reversing rod III 203 III are collectively called as a reversing rod 203, in order to increase the contact pressure between the reversing rod 203 and the slip rings I202I, II 202 II and III 202 III, thereby realizing better electric conduction, a booster 204 is arranged at one end of the reversing rod 203 which is in sliding contact with the slip ring I202I and the slip ring II 202 II which is in sliding contact with the slip ring III 202 III, the supercharger 204 is composed of a housing body 20401 and a supercharging spring 20402, the inside of the housing body 20401 is fixedly connected with one end of the reversing rod 203, the inside of the other end of the housing body 20401 is slidably connected with the reversing rod 203, a pressurizing spring 20401 is arranged inside the housing body 20401, two ends of the pressurizing spring 20401 are respectively contacted with the reversing rods 203 at two ends of the housing body 20401, a lead 4 is arranged inside the spring, and two ends of the lead 4 are fixedly connected with the reversing rods 203 at two ends of the shell body 20401.

In order to prevent the reversing rod 203 from separating from the housing body 20401 under the action of the pressurizing spring 20402, a boss is arranged at one end of the reversing rod 203, which is connected with the pressurizer 204 in a sliding manner.

In order to enable the reversing rod 203 to be matched with the sliding groove contact surfaces of the sliding ring I202I, the sliding ring II 202 II and the sliding ring III 202 III in the using process, so that abrasion is reduced, the service life is prolonged, sliding grooves are formed in the sliding ring I202I, the sliding ring II 202 II and the sliding ring III 202 III, and one ends, in contact with the sliding ring I202I, the sliding ring II 202 II and the sliding ring III 202 III, of the reversing rod 203 are arc-shaped.

In order to enable electrode materials to be arranged on the electrochemical electrolytic plating device and to be adjustable in position so as to adapt to electrolytic or plating containers with different sizes and adjust the distance between electrodes, the clamping adjusting device 3 is composed of a bottom plate 301, a primary connecting rod 302, a terminal rod 303 and a three-jaw centering device, the upper portion of the bottom plate 301 is hinged to one end of the primary connecting rod 302, the other end of the primary connecting rod 302 is hinged to the terminal rod 303, the other end of the terminal rod 303 is provided with the three-jaw centering device, the three-jaw centering device is connected with a connecting piece II 205 II through a lead 4, a clamping arm is composed of the primary connecting rod 302, the terminal rod 303 and the three-jaw centering device, and three groups of clamping arms are uniformly distributed on the circumference of the upper portion of the.

In order to facilitate installation of electrode materials needing electrolysis or electroplating, the three-jaw centering device is convenient to install and is centered after installation, the three-jaw centering device consists of three clamping blocks 304 and clamping springs 305, the circumference of each clamping block 304 is uniformly distributed with three blocks, the clamping blocks 304 penetrate through the terminal rod 303, and the clamping springs 305 are arranged on the lower sides of the clamping blocks 304 and the terminal rod 303.

In order to increase the electrical conductivity of the clamping block 304 and reduce oxidation, and to increase the acid and alkali resistance of the clamping block 304, the clamping block 304 is made of copper, and the surface of the clamping block 304 is plated with platinum.

The working principle is as follows: when the electrochemical electrolytic plating device is used, the electrochemical electrolytic plating device is placed on a mounting experiment platform through a thin neck sucker 107, different electrodes of a power supply electrode are respectively connected on three connecting sheets I205I, then the height of a container for electrolysis or plating is adjusted to enable the height of a clamping adjusting device 3 to be higher than that of the container, then a primary connecting rod 302 and a terminal rod 303 of the clamping adjusting device 3 are adjusted according to the size of an opening of the container, so that the container is suitable for the used container, the distance between the electrodes is suitable, required electrolyte or electroplating solution is added into the container, the lower side of a clamping block 304 is orderly pressed according to the connection condition of the electrodes, three clamping blocks 304 are opened, required electrode materials are inserted into corresponding three-jaw centering devices, the pressed clamping block 304 is released, the clamping block 304 clamps the electrode materials under the action of a clamping spring 305, the power supply of the motor 5 is switched on, the motor 5 drives the reversing rod II 203 II through an output shaft so as to drive the clamping adjusting device 3 to rotate, at the moment, the reversing rod I203I fixedly connected with the bottom plate 301 and the reversing rod III 203 III rotate, at the moment, the reversing rod I203I slides relative to the sliding ring I202I, the reversing rod II 203 II slides relative to the sliding ring II 202 II, the reversing rod III 203 III slides relative to the sliding ring III 202 III, the electrode material regularly moves in a container under the rotation driving of the clamping adjusting device 3, under the action of the commutator device 2, the electrode material is ensured to still be electrified during movement, after the electrode material is electrolyzed or electroplated, the power supply connected to the connecting sheet I205I is closed, the power supply of the motor 5 is closed, then the electrode material is held by hand, the lower side of the clamping block 304 is pressed by the other hand, the three-jaw centering device is opened, the electrode material is, the pressed clamping block 304 is released, and the electrolysis or plating of the electrode material, or the electrolysis of the solution, is completed.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. An electrochemical electrolytic plating apparatus, characterized in that: the improved commutator comprises a commutator device, wherein the commutator device comprises a half-open barrel, a slip ring I, a slip ring II, a slip ring III, a reversing rod I, a reversing rod II, a reversing rod III, a supercharger, a connecting sheet I and a connecting sheet II, the half-open barrel is fixedly arranged at the lower part of a supporting plate, the slip ring I is fixedly arranged at the inner side of the half-open barrel, the connecting sheet I is fixedly arranged at the outer side of the slip ring I, the slip ring II is fixedly arranged at the lower part of the half-open barrel, the slip ring II is fixedly arranged at the inner side of the half-open barrel, the slip ring III is fixedly arranged at the inner side of the half-open barrel, the connecting sheet I is fixedly arranged at the outer side of the slip ring III, the slip ring I is connected with the reversing rod I in a sliding manner, the connecting sheet II is fixedly arranged at the side face of one end of the slip ring I, the slip ring III is connected with the reversing rod III in a sliding mode, a connecting sheet II is fixedly mounted on the side face of one end of the slip ring III, one end of the reversing rod I is fixedly connected with an output shaft of the motor through an insulating connector, the output shaft of the motor penetrates through the supporting plate I and is fixedly mounted on the upper portion of the supporting plate I, the other end of the reversing rod I is fixedly mounted on the bottom plate, one end of the reversing rod II is fixedly mounted on the bottom plate, and the other end of the reversing rod III is fixedly mounted on the bottom plate.

2. An electrochemical electrolytic plating apparatus according to claim 1, wherein: the reversing rod I, the reversing rod II, the reversing rod III, the slip ring I, the slip ring II and the slip ring III are made of conductive metal materials.

3. The electrochemical electrolytic plating device according to claim 1, wherein the reversing bar i, the reversing bar ii and the reversing bar iii are collectively called as a reversing bar, a supercharger is disposed at one end of the reversing bar in sliding contact with the slip ring i and the slip ring ii and the slip ring iii, the supercharger comprises a housing body and a pressurizing spring, the interior of the housing body is fixedly connected with one end of the reversing bar, the interior of the other end of the housing body is slidably connected with the reversing bar, the interior of the housing body is provided with the pressurizing spring, two ends of the pressurizing spring are respectively in contact with the reversing bars at two ends of the housing body, a lead is disposed inside the spring, and two ends of the lead are fixedly connected with the reversing bars at two ends of the housing body.

4. The electrochemical electrolytic plating apparatus of claim 1, wherein the reversing lever is provided with a boss at an end thereof slidably connected to the pressurizing unit.

5. The electrochemical electrolytic plating apparatus of claim 1, wherein the slip rings I, II and III are provided with sliding grooves therein, and the ends of the reversing bar contacting the slip rings I, II and III are arc-shaped.

6. An electrochemical electrolytic plating apparatus, characterized in that: the clamping adjusting device is composed of a bottom plate, a primary connecting rod, a terminal rod and a three-jaw centering device, wherein the upper portion of the bottom plate is hinged to one end of the primary connecting rod, the other end of the primary connecting rod is hinged to the terminal rod, the other end of the terminal rod is provided with the three-jaw centering device, the three-jaw centering device is connected with a connecting sheet II through a lead, clamping arms are formed by the primary connecting rod, the terminal rod and the three-jaw centering device, and three groups of clamping arms are uniformly distributed on the circumference of the upper portion of the bottom plate.

7. The electrochemical electrolytic plating apparatus of claim 6, wherein the three-jaw centering device comprises three clamping blocks and three clamping springs, the three clamping blocks are evenly distributed on the circumference of the clamping block, the clamping blocks penetrate through the terminal rod, and the clamping springs are arranged on the clamping blocks and the lower side of the terminal rod.

8. The electrochemical electrolytic plating apparatus of claim 7, wherein the clamping block material is copper metal, and the clamping block surface is platinized.

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