CN218546488U - Corrosion solution circulation simulation system for metal material corrosion fatigue test - Google Patents

Abstract

The utility model provides a corrosive solution circulation analog system for metal material corrodes fatigue test, includes the corrosive liquid case that corrodes the sample and for the corrosive liquid case that the corrosive liquid circulation is provided to the corrosive liquid case, corrodes the perforation that supplies the sample to pass along all offering on the case from top to bottom, be equipped with detachable silica gel inflation sleeve in the perforation of lower part, the lower edge of corroding the case is equipped with the air cavity, and it is equipped with the piston to slide in the air cavity. Be equipped with detachable silica gel inflation sleeve through the perforation department in the case lower part of corroding, after the sample passes silica gel inflation sleeve, inflate the silica gel inflation sleeve, it is sufficient through making silica gel inflation sleeve, silica gel inflation sleeve closely overlaps and establishes the tip at the sample, carry out fixed seal to the tip of sample, only need control silica gel inflation sleeve's the state of aerifing, can wrap up the sample of different thicknesses, atmospheric pressure orders about silica gel inflation sleeve closely to overlap and establish and avoid the corrosive liquid to flow on the sample, sealing performance is good, and the sample of being convenient for is fixed.

Description

Corrosion solution circulation simulation system for metal material corrosion fatigue test

Technical Field

The utility model relates to a metallic material corrosion fatigue test technical field, concretely relates to corrosion solution circulation analog system for metallic material corrosion fatigue test.

Background

The dual functions of corrosion and fatigue of metal materials are main failure modes of engineering structural materials, and particularly, the performance of the metal materials in the fields of aerospace, ocean engineering, nuclear power and the like is more obvious, the performance evaluation of the metal materials under the environmental working condition is more and more emphasized in the industry, the traditional corrosion and fatigue single evaluation cannot meet the requirements, and the fatigue performance test under the corrosion environment is more and more important.

The key point of the metal material corrosion fatigue test is the accurate simulation of the corrosion environment. At present, the environment simulation device for corrosion fatigue test that has publicized at home and abroad is more, adopt the corrosion box to corrode the simulation to the sample usually, the perforation that supplies the sample to pass is all seted up along the upper and lower edge of corrosion box, the sample passes behind the corrosion box, seal through the perforation of rubber circle to the lower part, the rubber circle receives the elasticity restriction, can only seal fixedly to the sample of specific size, too big sample makes the rubber circle produce the fracture easily, the sample of undersize can not hug closely the cover to it and establish, the corrosive liquid leakage takes place easily, can not guarantee the fixed leakproofness of the thickness of different thickness survey samples on corrosion box.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and not enough, providing a corrosion solution circulation analog system for metal material corrodes fatigue test, can carry out fixed seal to the sample of different thicknesses, and sealing performance is good.

The utility model discloses a solve above-mentioned technical problem not enough, the technical scheme who adopts is: the utility model provides a corrosive solution circulation analog system for metal material corrosion fatigue test, includes the corrosive tank that corrodes the sample and for the corrosive tank provides corrosive solution endless corrosive solution case, corrodes the perforation that supplies the sample to pass along all seting up about the case, the lower part is perforated to be equipped with detachable silica gel inflatable sleeve, corrodes the lower edge of case and is equipped with the air cavity, slides in the air cavity and is equipped with the piston, forms first cavity and second cavity respectively between the both ends inner wall of piston and air cavity, and silica gel inflatable sleeve passes through trachea and second cavity intercommunication, and the lateral wall that is located first cavity internal piston rotates and is equipped with the lead screw, and the other end of lead screw extends to outside the air cavity, lead screw and the lateral wall threaded connection who corresponds the air cavity, has seted up the atmospheric through-hole of intercommunication on the first cavity.

As the utility model relates to a further optimization of corrosive solution circulation analog system for metal material corrosion fatigue test, the perforation department of corroding the case lower part is equipped with and perforates coaxial first fixed sleeve, and first fixed sleeve's lower extreme downwardly extending, and first fixed sleeve's inner wall is equipped with the internal thread, and fixed cover is equipped with the second fixed sleeve on the silica gel air sleeve, and the outer wall of second fixed sleeve is equipped with the external screw thread.

As a further optimization of the corrosion solution circulation simulation system for the metal material corrosion fatigue test, trachea one end and second chamber intercommunication, the tracheal other end and silica gel are inflated telescopic air inlet and can be dismantled and be connected.

As a further optimization of the corrosion solution circulation simulation system for the metal material corrosion fatigue test, the one end of the lead screw, which is located outside the air cavity, is provided with a torsion cap.

As a further optimization of the corrosion solution circulation simulation system for the metal material corrosion fatigue test, the material of corrosion box and corrosion liquid box is transparent material.

The utility model discloses following beneficial effect has:

be equipped with detachable silica gel and aerify the sleeve through the perforation department of corroding case lower part, after the sample passed silica gel and aerify the sleeve, aerify the sleeve to silica gel, it is abundant through making silica gel aerify the sleeve, silica gel aerifys the tip that the sleeve closely overlaps and establish the sample, carry out fixed seal to the tip of sample, only need control silica gel to aerify telescopic gas filled state, can wrap up the sample of different thicknesses, atmospheric pressure orders about the inseparable cover of silica gel and establishes and avoid the corrosive liquid to flow on the sample, sealing performance is good, and the sample of being convenient for is fixed.

Drawings

FIG. 1 is a schematic structural diagram of a simulation system according to the present embodiment;

FIG. 2 is a schematic view of FIG. 1 in partial section;

reference numerals are as follows: 1. the corrosion box, 2, lead screw, 3, air cavity, 301, second cavity, 302, first cavity, 4, first fixed sleeve, 5, silica gel inflation sleeve, 6, sample, 7, second fixed sleeve, 8, corrosive liquid case, 9, circulating pump, 10, piston, 11, trachea, 12, through-hole, 13, turn round the cap.

Detailed Description

As shown in FIG. 1, the utility model provides a corrosion solution circulation analog system for metal material corrosion fatigue test, including carrying out the corrosion case 1 that corrodes and provide the corrosion liquid endless corrosion liquid case 8 for corrosion case 1 to sample 6. The corrosive liquid box 8 is positioned below the corrosion box 1, and the upper edge and the lower edge of the corrosion box 1 are provided with through holes for the sample 6 to pass through.

Sample 6 wears to establish on corrosion box 1, be equipped with drawing liquid pump 9 on the corrosion liquid case 8, drawing liquid end and the inside intercommunication of corrosion liquid case 8 of drawing liquid pump 9, drawing liquid end and flushing pipe of drawing liquid pump 9 and the upper portion intercommunication of corrosion box 1, the bottom of corrosion box 1 is equipped with the drain pipe, the other end of drain pipe and corrosion liquid case 8's upper portion intercommunication, drawing liquid pump 9 takes out the corrosion liquid in the corrosion liquid case 8 and circulates to the 6 body of rods of sample in the corrosion box 1 and washes, corrode it, the corrosion liquid in the corrosion liquid case 8 flows into corrosion box 1 at last can flow back through the drain pipe in the corrosion liquid case 8 again.

The material of the corrosion tank 1 and the material of the corrosive liquid tank 8 are both transparent. The corrosion box 1 is transparent and visible so as to conveniently observe the corrosion state of the sample 6, and the corrosion liquid box 8 is transparent and visible so as to conveniently observe the loss of the corrosion liquid in real time and supplement the corrosion liquid in time.

The perforation department of corroding 1 lower part of case is equipped with and perforates coaxial first fixed sleeve 4, and the lower extreme downwardly extending of first fixed sleeve 4, and the inner wall of first fixed sleeve 4 is equipped with the internal thread, and fixed cover is equipped with second fixed sleeve 7 on the silica gel air sleeve 5, and the outer wall of second fixed sleeve 7 is equipped with the external screw thread. First fixed sleeve 4 and 7 screw-thread cooperations of second fixed sleeve make silica gel inflate sleeve 5 and can dismantle the setting and in corroding the lower part perforation of case 1, aerify through inflating silica gel sleeve 5 and carry out fixed seal to sample 6, silica gel inflate sleeve 5 and be the consumables, for preventing to use for a long time, lead to the damaged unable use of silica gel inflate sleeve 5, can dismantle the setting with it, guarantee analog system's normal operating. Silica gel inflatable sleeve 5 adopts the elasticity silica gel material, and when meeting the sample 6 of different thicknesses, only need control silica gel inflatable sleeve 5's gas filled state, can wrap up the sample 6 of different thicknesses, and atmospheric pressure orders about the closely cover of silica gel inflatable sleeve 5 and establishes on sample 6 and avoid the corrosive liquid to flow out, and sealing performance is good.

As shown in fig. 2, the lower edge of the corrosion box 1 is provided with an air cavity 3, a piston 10 is slidably arranged in the air cavity 3, a first cavity 302 and a second cavity 301 are respectively formed between the piston 10 and the inner walls of the two ends of the air cavity 3, the silica gel inflating sleeve 5 is communicated with the second cavity 301 through an air pipe 11, and the air pipe 11 is detachably connected with the air inlet of the silica gel inflating sleeve 5. The lateral wall that is located first cavity 302 internal piston 10 rotates and is equipped with lead screw 2, and outside lead screw 2's the other end extended to air cavity 3, lead screw 2 and the lateral wall threaded connection who corresponds air cavity 3, the one end that lead screw 2 is located the air cavity 3 outside was equipped with and turns round cap 13. The first chamber 302 is provided with a through hole 12 communicated with the atmosphere.

After sample 6 passes silica gel inflatable sleeve 5, 2 rotate through turning round cap 13 wrench movement lead screw, lead screw 2 and air cavity 3's lateral wall screw motion, it slides to second cavity 301 to drive piston 10, gas in piston 10 extrusion second cavity 301, make the gas in the second cavity 301 pass through trachea 11 and get into silica gel inflatable sleeve 5, inflate silica gel inflatable sleeve 5, make silica gel inflatable sleeve 5 sufficient, silica gel inflatable sleeve 5 wraps up the tip of sample 6 at the in-process that is sufficient, thereby fix the tip to sample 6, and silica gel inflatable sleeve 5 hugs closely the cover and establishes the tip at sample 6, can avoid the corrosive liquid in the corrosion box 1 to flow out from the perforation of lower part, can fix sample 6, can also guarantee to seal, it is more convenient to fix through sample 6.

Claims (5)

1. The utility model provides a corrosion solution circulation analog system for metal material corrodes fatigue test, includes to sample (6) corrode case (1) and for corroding case (1) provides corrosion liquid endless corrosion liquid case (8), corrodes about case (1) and all sets up the perforation that supplies sample (6) to pass along, its characterized in that: corrode and be equipped with detachable silica gel inflation sleeve (5) in the perforation of case (1) lower part, the lower edge of corroding case (1) is equipped with air cavity (3), it is equipped with piston (10) to slide in air cavity (3), form first cavity (302) and second cavity (301) between the both ends inner wall of piston (10) and air cavity (3) respectively, silica gel inflation sleeve (5) are through trachea (11) and second cavity (301) intercommunication, the lateral wall that is located first cavity (302) interior piston (10) rotates and is equipped with lead screw (2), the other end of lead screw (2) extends to outside air cavity (3), lead screw (2) and the lateral wall threaded connection who corresponds air cavity (3), seted up on first cavity (302) and communicate atmospheric through-hole (12).

2. The corrosion solution circulation simulation system for the corrosion fatigue test of the metal material according to claim 1, wherein: corrode case (1) lower part perforation department and be equipped with perforation coaxial first fixed sleeve (4), the lower extreme downwardly extending of first fixed sleeve (4), and the inner wall of first fixed sleeve (4) is equipped with the internal thread, and fixed cover is equipped with second fixed sleeve (7) on silica gel inflatable sleeve (5), and the outer wall of second fixed sleeve (7) is equipped with the external screw thread.

3. The corrosion solution circulation simulation system for the corrosion fatigue test of the metal material according to claim 1, wherein: trachea (11) one end and second cavity (301) intercommunication, the other end of trachea (11) and the air inlet detachable connection of silica gel inflation sleeve (5).

4. The corrosion solution circulation simulation system for the corrosion fatigue test of the metal material according to claim 1, wherein: and a twist cap (13) is arranged at one end of the lead screw (2) positioned outside the air cavity (3).

5. The corrosion solution circulation simulation system for the corrosion fatigue test of the metal material according to claim 1, wherein: the corrosion tank (1) and the corrosion liquid tank (8) are both made of transparent materials.

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