CN208583360U

CN208583360U - A kind of sample holder of stainless steel ferric trichloride pitting test

Info

Publication number: CN208583360U
Application number: CN201820932927.2U
Authority: CN
Inventors: 马敏敏; 刘森; 蔺晓亮
Original assignee: Jiuquan Iron and Steel Group Co Ltd
Current assignee: Jiuquan Iron and Steel Group Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-03-08
Anticipated expiration: 2028-06-15

Abstract

The utility model belongs to steel corrosion resistant apparatus technical field, more particularly to a kind of sample holder of stainless steel ferric trichloride pitting test, including plastic tube body, the top of the plastic tube body, which is circumferentially cut, forms multiple support legs, radially symmetrically offers one group of flow orifice in the middle part of plastic tube body；Plastic tube body lower end is equipped with counter weight base, counter weight base includes counterweight ring and the clump weight inside counterweight ring, counterweight ring and plastic tube body are coaxially disposed, the utility model uses clump weight at plastic tube body bottom, float test tube bracket will not in solution, directly it is located at container bottom by gravity, entire sample holder structure is simple, easy to use.

Description

A kind of sample holder of stainless steel ferric trichloride pitting test

Technical field

The utility model belongs to steel corrosion resistant apparatus technical field, and in particular to a kind of stainless steel ferric trichloride spot corrosion examination The sample holder tested.

Background technique

Spot corrosion is one of most common Corrosion Types of stainless steel, it often results in the corrosion failure of equipment, and can become and answer The formation of crack of power corrosion is to bring bigger harm.Due to occurring with certain concealment, and frequently, in relation to its evaluation And characterization becomes an important research content.

The method of existing evaluation pitting resistance of stainless steel mainly has chemical immersion method and electrochemical measurements at present, Most typical middle chemical immersion method is FeCl₃It impregnates, in GB/T17897-1999 stainless steel ferric trichloride pitting corrosion test method Have: the sample to polish flat is placed in 6% FeCl₃For 24 hours, sample reference dimension is 30-40mm*20mm* to horizontal immersion in solution 1.5- 5mm, and sample mount is then made for PVC plastic pipe.

But it since plastic density is much smaller than water, if sample mount is first put into container bottom, then puts stainless steel print and is placed in In sample mount, 6% FeCl is finally poured into₃Solution can then make stainless steel print bottom generate bubble, if picked up using tweezers The adjustment of stainless steel print, sample mount easily floats and swings under the action of buoyancy, stainless steel print horizontal pendulum again It is placed on very difficult on triangular support foot, and puts process and easily generate bubble again；If first pouring into 6% FeCl in a reservoir₃It is molten Liquid places into sample mount, then bracket directly floats on liquid level, and stainless steel print is even more to be difficult to place.

It is a kind of with itself counterweight, the stainless steel ferric trichloride pitting test put convenient for print therefore, it is necessary to develop Sample holder.

Utility model content

For above-mentioned problems of the prior art and deficiency, the utility model, which provides, to be had itself counterweight, is convenient for sample The sample holder for the stainless steel ferric trichloride pitting test that piece is put.

To achieve the above object, the utility model provides the following technical solutions:

A kind of sample holder of stainless steel ferric trichloride pitting test, including plastic tube body, the top of the plastic tube body Circumferentially cutting forms multiple support legs at end, radially symmetrically offers one group of flow orifice in the middle part of plastic tube body；Plastic tube body Lower end is equipped with counter weight base, and counter weight base includes counterweight ring and the clump weight inside counterweight ring, counterweight ring and plastic tube body Coaxial arrangement.

Further, the plastic tube body is fixedly connected with counter weight base.

Further, plastic tube body and counterweight ring are integrally formed.

Further, the lower end flush of counterweight ring and clump weight coaxial arrangement and the two.

Further, plastic tube body is flexibly connected with counter weight base.

Further, counterweight ring top edge extends to form interconnecting piece, interconnecting piece and the activity of plastic tube body lower end straight up Connection.

Further, the interconnecting piece is connect with plastic tube body lower thread.

Further, the interconnecting piece outer wall is circumferentially-spaced is equipped with arc convex, in the plastic tube body bottom sidewall Card hole corresponding with arc convex is offered, arc convex, which is located in card hole, is clamped counterweight ring and plastic tube body.

Further, the counterweight ring is made of plastic material.

Further, the glass microballoon that the clump weight is epoxy resin and diameter is 2-5mm is mixing cured in counterweight 5 inner wall of ring is formed.

Compared with prior art, the utility model has the beneficial effects that

The utility model uses clump weight at plastic tube body bottom, float test tube bracket will not in solution, directly by weight Power is located at container bottom, therefore stainless steel sample can adjust at any time and be convenient for being placed horizontally at again on test tube bracket, counterweight Block using epoxy resin with glass microballoon is mixing cured forms, can not only be bonded counterweight ring inner wall shape, but also because its property stabilization It will not influence experimental result, and glass material density is much larger than the density of water, a small amount of addition can reach counterbalancing effect, entirely Sample holder structure is simple, easy to use.

Detailed description of the invention

Fig. 1 is sample holder structural schematic diagram in the prior art；

Fig. 2 is 1 sample holder structural schematic diagram of embodiment；

Fig. 3 is counter weight base structural schematic diagram in embodiment 2；

Fig. 4 is counter weight base structural schematic diagram in embodiment 3；

Fig. 5 is plastic tube body structural schematic diagram in embodiment 3.

In figure: 1. plastic tube bodies, 2. support legs, 3. flow orifices, 4. counter weight bases, 5. counterweight rings, 6. clump weights, 7. connections Portion, 8. protrusions, 9. card holes.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and detailed description.

It is as shown in Figure 1 existing sample holder, 1 upper end of plastic tube body of PVC material, which is circumferentially cut, forms multiple three Angular support leg 2, is provided with flow orifice 3 on tube body, the top coplanar horizontal of multiple triangular support feet 2, and stainless steel print is horizontal It is placed on triangular support foot 2.

Embodiment 1

As shown in Fig. 2, a kind of sample holder of stainless steel ferric trichloride pitting test provided by the utility model, including pipe Body is provided with flow orifice 3, upper end and circumferentially cuts the plastic tube body 1 for forming multiple support legs 2, is equipped with counterweight below plastic tube body 1 Pedestal 4, counter weight base 4 include counterweight ring 5 and epoxy resin and glass microballoon mixing cured matching in the formation of 5 inner wall of counterweight ring Pouring weight 6, counterweight ring 5 and plastic tube body 1 are coaxially disposed, and counter weight base 4 is fixedly connected with plastic tube body 1.

In the present embodiment, counterweight ring 5 is that 1 lower end of plastic tube body extends downwardly, counterweight ring 5, the one of plastic tube body 1 at Type, clump weight 6 is corresponding with 5 internal diameter of counterweight ring and lower end is concordant.Flow orifice 3 is two, radially symmetrical at 1 middle part of plastic tube body It opens up, the weight of clump weight 6 is the FeCl that 6% is filled in container₃When solution, what sample holder can be stable is located at container bottom.

Embodiment 2

A kind of sample holder of stainless steel ferric trichloride pitting test provided by the utility model, including pipe shaft are provided with flowing The plastic tube body 1 for forming multiple support legs 2 is circumferentially cut in hole 3, upper end, and the present embodiment plastic tube body 1 is same as the prior art, Therefore non-attached drawing indicates.As shown in figure 3, below plastic tube body 1 be equipped with counter weight base 4, counter weight base 4 include counterweight ring 5 and Epoxy resin and the mixing cured clump weight 6 formed in 5 inner wall of counterweight ring of glass microballoon, counterweight ring 5 are coaxially set with plastic tube body 1 It sets, counter weight base 4 is flexibly connected with plastic tube body 1.5 upper limb of counterweight ring extends to form interconnecting piece 7 straight up, interconnecting piece 7 with 1 lower end of plastic tube body (flow orifice 3 lower section) is threadedly coupled, can be selected according to the diameter of interconnecting piece 7, plastic tube body 1 internal screw thread or External screw thread connection, the present embodiment are that 7 internal diameter of interconnecting piece is threadedly coupled with 1 major diameter fit of plastic tube body, at this time 4 outer diameter of counter weight base Greater than plastic tube body 1, entire sample holder is more stable in the solution.

Embodiment 3

As illustrated in figures 4-5, the sample holder of a kind of stainless steel ferric trichloride pitting test provided by the utility model, including Pipe shaft is provided with flow orifice 3, upper end and circumferentially cuts the plastic tube body 1 for forming multiple support legs 2.It is equipped with and matches below plastic tube body 1 Weight pedestal 4, counter weight base 4 include that counterweight ring 5 and epoxy resin and glass microballoon are mixing cured in the formation of 5 inner wall of counterweight ring Clump weight 6, counterweight ring 5 and plastic tube body 1 are coaxially disposed, and counter weight base 4 is flexibly connected with plastic tube body 1.

5 upper limb of counterweight ring extends to form interconnecting piece 7 straight up, and 7 outer wall of interconnecting piece is provided at circumferentially spaced arc convex 8, 1 bottom of plastic tube body (3 lower section of flow orifice) is provided with corresponding card hole 9, and 7 outer diameter of interconnecting piece is corresponding with 1 internal diameter of plastic tube body, protrusion 8 are clamped counterweight ring 5 and plastic tube body 1 in card hole 9.

In above embodiments, counterweight ring 5 is plastic material, and Glass Bead Diameter 2-5mm, clump weight is using epoxy resin With glass microballoon be blended in it is adherent in the counterweight ring of back cover solidify, can according to required weight adjust include glass microballoon Amount.Epoxy resin, glass microballoon property are stablized, and FeCl is immersed in₃It is generated in solution without other impurities, and glass material density Much larger than the density of water, a small amount of addition both can reach counterbalancing effect.

Claims

1. a kind of sample holder of stainless steel ferric trichloride pitting test, including plastic tube body (1), which is characterized in that described The top of plastic tube body (1), which is circumferentially cut, to be formed multiple support legs (2), and middle part radially symmetrically offers one group of flowing Hole (3)；Plastic tube body (1) lower end is equipped with counter weight base (4), and counter weight base (4) includes counterweight ring (5) and is located at counterweight ring (5) Internal clump weight (6), counterweight ring (5) and plastic tube body (1) are coaxially disposed.

2. a kind of sample holder of stainless steel ferric trichloride pitting test as described in claim 1, which is characterized in that described Plastic tube body (1) is fixedly connected with counter weight base (4).

3. a kind of sample holder of stainless steel ferric trichloride pitting test as claimed in claim 1 or 2, which is characterized in that institute The plastic tube body (1) stated and counterweight ring (5) are integrally formed.

4. a kind of sample holder of stainless steel ferric trichloride pitting test as claimed in claim 3, which is characterized in that described Counterweight ring (5) and clump weight (6) are coaxially disposed and the lower end flush of the two.

5. a kind of sample holder of stainless steel ferric trichloride pitting test as described in claim 1, which is characterized in that described Plastic tube body (1) is flexibly connected with counter weight base (4).

6. a kind of sample holder of stainless steel ferric trichloride pitting test as described in claim 4 or 5, which is characterized in that institute Counterweight ring (5) top edge stated extends to form interconnecting piece (7) straight up, and interconnecting piece (7) and plastic tube body (1) lower end activity connect It connects.

7. a kind of sample holder of stainless steel ferric trichloride pitting test as claimed in claim 6, which is characterized in that described Interconnecting piece (7) is connect with plastic tube body (1) lower thread.

8. a kind of sample holder of stainless steel ferric trichloride pitting test as claimed in claim 6, which is characterized in that described Interconnecting piece (7) outer wall is circumferentially-spaced to be equipped with arc convex (8), offers in plastic tube body (1) bottom sidewall convex with arc (8) corresponding card hole (9) is played, arc convex (8), which is located in card hole (9), is clamped counterweight ring (5) and plastic tube body (1).

9. a kind of sample holder of stainless steel ferric trichloride pitting test as described in claim 4 or 8, which is characterized in that institute The counterweight ring (5) stated is made of plastic material.

10. a kind of sample holder of stainless steel ferric trichloride pitting test as claimed in claim 9, which is characterized in that described Clump weight (6) be epoxy resin be 2-5mm with diameter glass microballoon mixing cured formed in counterweight ring (5) inner wall.