CN1175260C - Anticorrosive coating layer scoring-resistance testing device - Google Patents

Abstract

The present invention relates to a testing device used for scratch resistance of an anticorrosive coating layer. The device comprises a testing platform 13, a walking mechanism 11, a scratching needle 31 and a counterweight loading mechanism 10. The device is characterized in that a guide rail 30 of the testing platform 13 is a guide rail pair of double parallel beelines, a manual walking mechanism 15 is added in the walking mechanism 11 of the platform, a scratching head fixing block 4 is an adjustable fixing mechanism, and the counterweight loading mechanism 10 is provided with a pressure measuring system in a matching mode. The device has the advantages of simple operation, correct pressure, stability, convenience, practicability and strong repeatability.

Description

Anticorrosive coating layer scoring-resistance testing device

The present invention is used for the particularly proving installation of the heavy anticorrosive coat damage resistant of steel pipe of steel product anticorrosion coating, relates to the measurement of length, thickness and similar linear dimension or by means of the physical property of measuring material, measures the material field.

As everyone knows, the steel material goods are for long service life and guarantee its performance, and at its appearance coating corrosion-inhibiting coating, some goods in use then will stand the mill of unclassified stores always, draw to wait effect, this will propose the requirement of damage resistant and measured certainly corrosion-inhibiting coating.As steel pipe when carrying out underground passing through, will stand sandstone mill, draw, for the corrosion-inhibiting coating of the steel pipe that guarantees to pass through still can reach request for utilization, the technical requirement of damage resistant just must be proposed to corrosion-inhibiting coating.Therefore the damage resistant test to corrosion-inhibiting coating has also just become necessity.Though and this testing apparatus does not see that the patent documentation report is arranged, existing procucts are using, and have entered standard (ISO 1518:1992 (E).GB6554-86)。Shown in the standard and the structure of used product all by test platform, test platform haulage gear, scriber and on lever counterweight load maintainer form.But the test platform of these products adopts the single track pair, the poor stability of test platform, make measuring accuracy low, the test platform haulage gear has only with electronics pulling experiment machine and is used, can not be manual, this uses not general place for electronic tension tester, to not possessing the place of tension tester, just brings difficulty as working-yard or some other test place; Scriber is that the screw locking can not be adjusted, and regulates difficulty, low precision when causing test; Scratch the pressure control out of true, can only pass through the Theoretical Calculation nominal pressure, cause degree of accuracy poor.Like this some shortcomings have restricted the testing precision of anticorrosive coating layer scoring-resistance and have brought the inconvenience of use.New through looking into, do not see the innovative approach that has these problems both at home and abroad so far.

Purpose of the present invention is exactly a kind of degree of accuracy height of design, anticorrosive coating layer scoring-resistance testing device easy to use.

Critical piece of the present invention still adopts test platform 13, test platform travel mechanism 11, scriber 31, lever counterweight load maintainer 10 4 major parts.Just in this four part, new technical measures have been taked, be that test platform 13 adopts two parallel lines guideways, be added with manual travel mechanism 15 in test platform travel mechanism 11, the scriber fixed mechanism is an adjustable type, and load maintainer 10 is furnished with piezometry instrument or weight indicator scale.Fig. 1, Fig. 2 are exactly the overall construction drawing of this device.As can be seen from the figure counterweight load maintainer 10 and scriber fixed block 4 are sleeved on and do on the weighted lever 2 to move to regulate, one end of weighted lever 2 is positioned on the device base plate 16 and is rotated by axle 6, holding screw 8, fixed hinge frame 14, mobile adjusting bracket 5, and the other end has fixing support rack 7 to support.There is the test platform 13 of device travel mechanism 11 scriber fixed block 4 belows, and it is positioned on the device base plate 16 by guide rail 30 and slide block 29.Test specimen is placed on the test platform 13, and scriber 31 touches test specimen, regulate force value by counterweight load maintainer 10, and rear haulage or hand rotation test platform just can carry out simulation test.Its concrete structure such as Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, wherein Fig. 4 has provided the structure of test platform guide rail.Below the test platform both sides of rectangle, there is the slide block 29 of two parallel guide grooves 27 to be enclosed within the top of two parallel lines guide rails 30, guide rail 30 xsect tops are the hexagon under shed, opening edge outwards glides and carries out the transition to the below seat, by screw 42 under be fixed on the device base plate 16, the xsect of guide groove 27 is similar to the shape on guide rail 30 xsect tops, and one group of 4 ball 28 respectively is installed at the two ends of slide block 29, guide rail 30 is contacted with the slide block inwall by ball 28.Like this, increase the stability of sliding platform on the one hand, improved the counterweight load of platform on the other hand, prolonged service life of equipment.Man-operated mechanism in the test platform travel mechanism 11 is made up of handwheel 23, axle sleeve 20, back-up ring 21, key 22, copper sheathing 25, leading screw 19, screw 17, set bolt 18, nut 24, sees Fig. 3 for details.The external end head of leading screw 19 is with handwheel 23, twists solid with nut 24 wheel hub and leading screw 19 fixing backs by key 22.From handwheel inward, leading screw 19 passes the axle sleeve 20 that back-up ring 21 and the inside are with copper sheathing 25, and this axle sleeve 20 is fixed on the device base plate 16 by set bolt 26.Leading screw 19 inner ends are screwed into from the screw 17 that is fixed on the test platform below, and screw 17 is twisted solid bottom at test platform 13 by set bolt 18.Manually the increase of travel mechanism makes this device that better operability arranged, and range of application enlarges, and is more convenient.The haulage gear that is used with the electronics chest expander is conventional structure, does not do narration at this.Scriber 31 fixed mechanisms such as Fig. 5, shown in Figure 6.It is made up of scriber 31, briquetting 38, fixed block 32, tight fixed bolt 33,34, pad 35,39, nut 36,40, set bolt 41, adjusting bolt 37 and nut 40.One side becomes " Contraband " shape and opposite side vertically has the fixed block 32 of 3 scriber jacks after the opening part of " Contraband " shape adds a pad 39 by nut 40 briquetting 38 to be twisted synthetic rectangular enclosures and be enclosed within on the weighted lever 2, and other has set bolt 41 that whole fixed block 32 is positioned on the weighted lever 2.Scriber 31 has 3 groups, scriber 31 in every group inserts in the blank pipe of regulating bolt 37 lower ends, two tight fixed bolts 34 by the blank pipe middle part are fixing with scriber 31, blank pipe has the tight fixed bolt 33 that is screwed into from fixed block 32 fixing outward again, the adjusting bolt 37 of blank pipe upper end is fixing by nut 36 every a pad 35, and regulates bolt 37 and stretch out outside the fixed block 32.So structure makes scriber 31 can make regulated at will up and down, under the prerequisite that guarantees the scriber verticality, has improved degree of regulation, has guaranteed the depth of parallelism on slide bar and test specimen surface, has reduced workload, has improved dirigibility, precision and the convenience of test.The mensuration of load maintainer force value can be by the tensimeter actual measurement that places between scriber 31 and the test specimen 12, can avoid over the sort of like this by the definite loaded down with trivial details and error of Theoretical Calculation, this just requires the on-the-spot tensimeter that is equipped with, also some trouble, for more convenient, accurate, also can adopt directly at weighted lever 2 high scales, make the method for pointer by balancing weight 1 one sides.In fact owing to balancing weight 1 and scriber fixed block 4 in the use are all moving adjustment, so this method is also comparatively complicated, feasible method is that scriber fixed block 4 is determined several mobile gears, and corresponding each gear carves the weight scale value that balancing weight 1 moves respectively on weighted lever 2.On balancing weight 1, install a weight adjusting knob again additional, for the correction after use a period of time.Like this, generally speaking just directly by the scale value of reading just can, needn't be equipped with tensimeter again, it is passable with regard to expiring only to proofread and correct calibrating with tensimeter when making metering appliance detecting.

With a concrete application example, the present invention is further illustrated below.This example is one to be used for testing the model machine of steel pipe anticorrosive coating layer scoring-resistance performance.Its structure as mentioned above.The performance parameter of equipment: adapt to caliber test specimen---100mm～1524mm; Adapt to test specimen wall thickness---6～30mm; Adapt to types of coatings---individual layer FBE, double-deck clinkery epoxy powder, three layers of PE; Test specimen full-size---200 * 200mm; Maximum load counterweight---60kg; Test specimen translational speed---0～600mm/min; Operating ambient temperature---10～45 ℃; Weight of equipment---about 40kg; Contour size of the unit(s)-400 * 1000mm; Scriber model---R-33 steel alloy revolution file; Operative norm---STF35/TG034 or Q/CNPC04---2001.Through probationary certificate, this device has reached designing requirement.

The present invention has brought very obvious after general anticorrosive coating layer scoring-resistance testing device has been done above-mentioned improvement Performance improve: the one, the occasion of this device use has been increased, made things convenient for, it has been had preferably can grasp The property done; The 2nd, increased the stability of sliding platform, improved the counterweight load of sliding platform, improved scuffing Precision, prolonged service life of device; The 3rd, guaranteed the perpendicularity of scriber and slide bar and test specimen surface The depth of parallelism not only reduces workload but also improved the scriber degree of regulation; The 4th, guaranteed the accuracy of test pressure value. This device can take multiple measurements at the diverse location of same specimen, have simple to operate, pressure accurately, The characteristics stable, that reappearance is strong. Try out through model machine, can satisfy the needs of actual production fully.

Description of drawings:

The overall vertical view of Fig. 1 anticorrosive coating layer scoring-resistance testing device

The overall side view of Fig. 2 anticorrosive coating layer scoring-resistance testing device

Fig. 3 anticorrosive coating layer scoring-resistance testing device manual adjustment means structural drawing

The two parallel lines guide rail structure figure of Fig. 4 anticorrosive coating layer scoring-resistance testing device

Fig. 5 anticorrosive coating layer scoring-resistance testing device scriber fixed-block-architecture (FBA) figure (front elevation)

Fig. 6 anticorrosive coating layer scoring-resistance testing device scriber fixed-block-architecture (FBA) figure (side view)

1-balancing weight 2-weighted lever wherein

3-rigging 4-scriber fixed block

5-secured adjusted frame 6-axle

7-fixing support rack 8-holding screw

9-base plate 10-counterweight load maintainer

11-platform travel mechanism 12-test specimen

13-test platform 14-fixed hinge frame

The manual travel mechanism 16-device of 15-base plate

17-screw 18-set bolt

19-leading screw 20-axle sleeve

21-back-up ring 22-key

23-handwheel 24-nut

25-copper sheathing 26-set bolt

27-guide groove 28-ball

29-slide block 30-guide rail

31-scriber 32-fixed block

33-tight fixed bolt 34-tight fixed bolt

35-pad 36-nut

37-regulates bolt 38-briquetting

39-pad 40-nut

41-set bolt 42-screw

Claims (5)

1, a kind of anticorrosive coating layer scoring-resistance testing device, comprise test platform [13], test platform travel mechanism [11], scriber [31] and counterweight load maintainer [10], counterweight load maintainer [10] and scriber fixed block [4] are sleeved on the weighted lever [2], one end of weighted lever [2] is by stationary shaft [6], fixed hinge frame [14] and secured adjusted frame [5] are positioned on the device base plate [16], the other end has fixing support rack [7] to support, the test platform [13] that platform travel mechanism [11] are arranged in scriber fixed block [4] below, test platform [13] is positioned on the device base plate [16] by guide rail [30] and slide block [29], the guide rail [30] that it is characterized in that test platform [13] is two parallel lines guideways, in platform travel mechanism [11], be added with manual travel mechanism [15], scriber fixed block [4] is the scalable fixed mechanism, and counterweight load maintainer [10] is furnished with the piezometry indicating graduation.

2, anticorrosive coating layer scoring-resistance testing device according to claim 1, it is characterized in that below, test rectangle platform [13] both sides has the slide block [29] of two guide grooves [27] to be enclosed within the top of two parallel lines guide rails [30], guide rail [30] xsect top is the hexagon under shed, opening edge outwards glides and carries out the transition to the below seat, by screw [42] under be fixed on the device base plate [16], one group 4 balls [28] are respectively installed at the two ends of the guide groove [27] of slide block [29], and guide rail [30] is contacted with guide groove [27] inwall by ball [28].

3, anticorrosive coating layer scoring-resistance testing device according to claim 1, it is characterized in that manual travel mechanism [15] is by handwheel [23], axle sleeve [20], back-up ring [21], key [22], copper sheathing [25], leading screw [19], screw [17] and nut [24] are formed, the external end head of leading screw [19] is with handwheel [23], twist wheel hub and the fixing back of leading screw [19] solid with nut [24] by key [22], from handwheel [23] inward, leading screw [19] passes the axle sleeve [20] that back-up ring [21] and the inside are with copper sheathing [25], this axle sleeve is fixed on the device base plate [16] by set bolt [26], leading screw [19] inner end is screwed into from the screw [17] that is fixed on test platform [13] below, and screw [17] is twisted solid bottom in test platform [13] by set bolt [18].

4, anticorrosive coating layer scoring-resistance testing device according to claim 1, it is characterized in that scriber fixed block [4] is by scriber [31], briquetting [38], fixed block [32], tight fixed bolt [33], [34], pad [35], [39], nut [36], [40], set bolt [41], regulating bolt [37] and nut [40] forms, one side becomes " Contraband " shape and fixed block [32] that opposite side vertically has 3 scriber jacks is twisted briquetting [38] synthetic rectangular cavity and is enclosed within on the weighted lever [2] after the opening part of " Contraband " shape adds a pad [39] by nut [40], other has set bolt [41] that whole fixed block [32] is positioned on the weighted lever [2], scriber [31] has 3 groups, scriber in every group [31] inserts in the blank pipe of regulating bolt [37] lower end, two tight fixed bolts [34] by the blank pipe middle part are fixing with scriber [31], blank pipe has the tight fixed bolt [33] that is screwed into from fixed block [32] fixing outward again, the adjusting bolt [37] of blank pipe upper end is fixing by nut [36] every a pad [39], and regulates bolt [37] and stretch out outside the fixed block [32].

5, anticorrosive coating layer scoring-resistance testing device according to claim 1, it is characterized in that regulating the force value of counterweight load maintainer [10] by the tensimeter actual measurement that places between scriber [31] and the test specimen [12], or go up the weight scale value line that a plurality of mobile gear scale mark of scriber fixed block [4] and balancing weight [1] that corresponding each gear is carved respectively move by weighted lever [2], be equipped with scriber fixed block [4] and balancing weight [1] one side and make the weight indication mechanism that pointer constitutes and indicate.

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