CN101153839B - Testing device for diversity flux contrast of sheet metal surface treatment - Google Patents

Abstract

The invention discloses a testing device for comparing differential flows on metal bar surface treatment. The testing device comprises a testing groove arranged at the upper part, a storage groove arranged at the lower part, a control cabinet and a circulating system and is characterized in that the testing groove comprises a differential flow baffle, a baffle sliding groove, a specimen holder and an intermediate partition plate, wherein, the differential flow baffle comprises an upper baffle, a middle baffle and a lower baffle, holes are densely arranged on the upper baffle and the lower baffle and the holes on the upper baffle are in proportion to the holes on the lower baffle; the specimen holder is fixed on the inner wall of the testing groove, the baffle sliding groove is fixed on the inner wall of the testing groove along the front and rear of the specimen holder and is provided with the differential flow baffle, the middle baffle is arranged between the differential flow baffle and the specimen holder and the differential flow baffle, the middle baffle and the specimen rack divides the testing groove into an upper working area and an lower working area. The invention is capable of acquiring different surface states of a flow single variable at the upper side and the lower side of the same specimen and is capable of effectively reducing errors during experiment operation, which is simple in structure and is convenient to operate.

Description

The test unit that is used for the contrast of sheet metal surface treatment diversity flux

(1) technical field

The present invention relates to be used for sheet metal surface-treated test unit.

(2) background technology

Steel plate is widely used in household electrical appliance, automobile and building materials.In many application scenarios, require steel plate to have certain surface quality, high decay resistance.For the usability that improves sheet material decay resistance particularly, need carry out surface treatment to various steel plates usually, and it is a lot of that steel plate is carried out surface treatment method, wherein most ofly adopt different solutions steel plate to be carried out surface treatment, for example phosphatization, plating etc.In order to determine steel plate decay resistance quality, need do some destructive tests and evaluate plate surface quality on the other hand, for example the weak burn into electrolytic corrosion test of solution etc.More than these tests all involve the liquid inventory problem, concerning preceding a kind of Control Flow just can control the metal surface deposition, reach required surface quality; Control Flow just can be controlled the corrosion degree concerning a kind of corrosion test in back.

In laboratory study and exploitation, the test unit that the common metal plate surface is handled comprises test flume, the accumulator tank of bottom, switch board, the circulation system on top.Surface of steel plate is handled the flow contrast adopts following method to finish usually: ON cycle pump at first, with the good flow one of valve regulated, close ebullator again.To immerse through the steel plate of surperficial degreasing, cleaning treatment then has in the flowmeter control and treatment solution, the ON cycle pump, and the recording flowmeter reading is treated to close ebullator behind the certain hour, takes out the steel plate of handling well.Regulate flow two again and do revision test.There are some errors in flow one in contrasting with flow two in above test.Error 1: two block plate surface degreasing, cleaning treatment have error; Error 2: solution concentration has error; Error 3: flow error comes from pipeline, valve regulated and twice reading.

(3) summary of the invention

The object of the present invention is to provide a kind of test unit that is used for the contrast of sheet metal surface treatment diversity flux, this test unit can obtain the univariate different surfaces state of flow in the both sides up and down of same sample, effectively reduce the error that operation brings in the test, it is simple in structure, easy to operate, the good comparability of model.

The present invention is achieved in that a kind of test unit that is used for the contrast of sheet metal surface treatment diversity flux, the test flume, the accumulator tank of bottom, switch board, the circulation system that comprise top, it is characterized in that: test flume comprises diversity flux baffle plate, baffle chute, specimen mounting, central dividing plate, the diversity flux baffle plate is made up of overhead gage, middle baffle plate and lower baffle plate, middle baffle plate is separated overhead gage and lower baffle plate, have densely covered hole on overhead gage and the lower baffle plate, overhead gage hole and lower baffle plate hole are proportional; Specimen mounting is installed on the test flume inwall, before and after specimen mounting, on the test flume inwall, baffle chute is installed, the diversity flux baffle plate is housed in the baffle chute, between diversity flux baffle plate and specimen mounting, central dividing plate is housed, central dividing plate is fixedly mounted in the test flume, and diversity flux baffle plate, central dividing plate and specimen mounting are separated into workspace up and down with test flume.

Described at the test flume inwall along the upper and lower electrode grillage that is equipped with of specimen mounting, electrode connection and sample wiring are housed in the test flume.

The present invention is by being equipped with the diversity flux baffle plate, can obtain the univariate different surfaces state of flow in the both sides up and down of same sample, can effectively reduce the error that operation brings in the test, can carry out two kinds of flow surface treatments to same sample board, its flow can be adjusted in proportion, comparative is strong, especially is fit to the laboratory plate surface is handled the flow shaker test.

The present invention is simple in structure, and is easy to operate, the good comparability of model.

(4) description of drawings

Fig. 1 is used for the test unit structural representation of sheet metal surface treatment diversity flux contrast for the present invention;

Fig. 2 is the test flume vertical view;

Fig. 3 is the switch board panel;

Fig. 4 is a diversity flux baffle arrangement synoptic diagram;

Fig. 5 is a diversity flux baffle plate overhead gage side view;

Fig. 6 is a diversity flux baffle plate lower baffle plate side view.

Among the figure: 1 diversity flux baffle plate, 2 baffle chutes, 3 specimen mountings, 4 electrode grillages, 5 sample wiring, 6 electrode connections, 7 central dividing plates, 8 filtrators, 9 well heaters, 10 temperature probes, 11 temperature control digital display meters, 12 time controllers, 13 pumps and heating beginning, 14 ebullators, 15 flow control valves, 16 flowmeters, 17 draining valves, 18 overhead gages, 19 lower baffle plates, 20 intermediate plates, 21 overhead gage holes, 22 lower baffle plate holes.23 test flumes, 24 accumulator tanks, 25 switch boards, on 26 the workspace, 27 times workspaces, 28 samples.

(5) embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments.

Referring to Fig. 1, Fig. 2, a kind of test unit that is used for sheet metal surface treatment diversity flux contrast comprisestest flume 23, theaccumulator tank 24 of bottom,switch board 25, the circulation system ontop.Test flume 23 comprises diversityflux baffle plate 1,baffle chute 2,specimen mounting 3, central dividing plate 7.

Diversityflux baffle plate 1 is made up ofoverhead gage 18,middle baffle plate 20 andlower baffle plate 19, andmiddle baffle plate 20 is separatedoverhead gage 18 andlower baffle plate 19, diversityflux baffle plate 1 be shaped as arrow shaped; Have densely coveredhole 21,22 onoverhead gage 18 and thelower baffle plate 19, the hole count inoverhead gage hole 21 and lowerbaffle plate hole 22 is proportional.Referring to Fig. 4, Fig. 5, Fig. 6, in the present embodiment, theoverhead gage 18 of diversityflux baffle plate 1 has 5 holes, andlower baffle plate 19 has 100 holes, and the hole count ratio is 5 to 100 up and down, and all bore dias are identical.The ratio of theoverhead gage hole 21 of diversityflux baffle plate 1 and the hole count in lowerbaffle plate hole 22 is: 5/100,9/100,16/100,25/100,36/100,49/100,64/100 or 81/,100 8 kind of specification, be inmodel 28 centers by right angle, trafficrequirement baffle plate 1 center extended line.Other special requirement also can require to make in proportion.

Specimen mounting 3 is installed ontest flume 23 inwalls, ontest flume 23 inwalls,baffle chute 2 is installed along specimen mounting 3 front and back, diversityflux baffle plate 1 is housed in thebaffle chute 2, between diversityflux baffle plate 1 andspecimen mounting 3, central dividing plate 7 is housed, central dividing plate 7 is fixedly mounted in thetest flume 23, and diversityflux baffle plate 1, central dividing plate 7 andspecimen mounting 3 are separated intoworkspace 26 and followingworkspace 27 with test flume 23.Along the specimen mounting 3 upper and lower electrode grillages 4 that are equipped with, electrode connection 6 and sample wiring 5 are housed in thetest flume 23 attest flume 23 inwalls.

Accumulator tank 24 is made up of filtrator 8, well heater 9, temperature probe 10.Switch board 25 is made up of temperature controldigital display meter 11,time controller 12, pump andheater switch 13, referring to Fig. 3.The circulation system is made up of ebullator 14, twoflow control valves 15,flowmeter 16, draining valves 17.

Operating process of the present invention is as follows:

Two required diversityflux baffle plates 1 of same ratio before and after at first inserting, ON cycle pump 14, regulate twoflow valves 15 and make test flume 23 liquid levels a little less than diversityflux baffle plate 1 top, this moment, liquid level must be higher thanoverhead gage hole 21 and lowerbaffle plate hole 22, closed ebullator 14 behind thelevel stability.Model 28 is put into specimen mounting 3 internal fixation, as need electrode two cube electrodes are put into upper/lower electrode grillage 4 internal fixation, insert required power supply, 14 timing of ON cycle pump, solution in the past diversityflux baffle plate 1 flows into respectively and goes upworkspace 26 and followingworkspace 27, through after get back toaccumulator tank 24 behind the diversityflux baffle plate 1, filtrator 8.

The present invention is used for the test unit of sheet metal surface treatment diversity flux contrast can eliminate following error:

1. asame model 28 is error free after pre-treatments such as surperficial degreasing, cleaning treatment.

2. solution the past diversityflux baffle plate 1 flows into respectively and goes upworkspace 26 and followingworkspace 27, solution is different withmodel 28 surface deposition degree, the various ions that consume also different, but two kinds of variable concentrations solution through after diversityflux baffle plate 1, filtrator 8 become same concentration solution again after getting back toaccumulator tank 24 and enter upper andlower workspace 26,27, being that upper andlower workspace 26,27 starting soln concentration are consistent, is free from error.

3. flow is error free, after inserting front and back diversityflux baffle plate 1, regulating flow, upper andlower workspace 26,27 flows remain certain proportion, thereby eliminate the error that comes from pipeline, valve regulated and twice reading fully, and calculated flow rate is also very convenient.Below be the flow rate calculation formula:

$Q_A=\frac{Q}{n_A+n_B}\×n_A$$Q_B=\frac{Q}{n_A+n_B}\×n_B$

In the formula: Q total flow (flowmeter numerical value),

n_AThe plate hole number that performs,

n_BThe lower baffle hole count,

Q_ASample upper surface fluid flow,

Q_BSample lower surface fluid flow.

The present invention is by being equipped with the diversity flux baffle plate, can obtain the univariate different surfaces state of flow in the both sides up and down of same sample, can effectively reduce the error that operation brings in the test, can carry out two kinds of flow surface treatments to same sample board, its flow can be adjusted in proportion, comparative is strong, especially is fit to the laboratory plate surface is handled the flow shaker test.

The present invention is simple in structure, and is easy to operate, the good comparability of model.

Claims (3)

1. one kind is used for the test unit that sheet metal surface treatment diversity flux contrasts, the test flume, the accumulator tank of bottom, switch board, the circulation system that comprise top, it is characterized in that: test flume comprises diversity flux baffle plate, baffle chute, specimen mounting, central dividing plate, the diversity flux baffle plate is made up of overhead gage, middle baffle plate and lower baffle plate, middle baffle plate is separated overhead gage and lower baffle plate, have densely covered hole on overhead gage and the lower baffle plate, the hole count in overhead gage hole and lower baffle plate hole is proportional; Specimen mounting is installed on the test flume inwall, before and after specimen mounting, on the test flume inwall, baffle chute is installed, the diversity flux baffle plate is housed in the baffle chute, between diversity flux baffle plate and specimen mounting, central dividing plate is housed, central dividing plate is fixedly mounted in the test flume, and diversity flux baffle plate, central dividing plate and specimen mounting are separated into workspace up and down with test flume.

2. the test unit that is used for the contrast of sheet metal surface treatment diversity flux according to claim 1 is characterized in that: along the upper and lower electrode grillage that is equipped with of specimen mounting, electrode connection and sample wiring are housed in the test flume at the test flume inwall.

3. the test unit that is used for the contrast of sheet metal surface treatment diversity flux according to claim 1, it is characterized in that: the ratio of the overhead gage hole of diversity flux baffle plate and the hole count in lower baffle plate hole is: 5/100,9/100,16/100,25/100,36/100,49/100,64/100 or 81/100.

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