CN208488364U - A kind of moulding hardened sand permeability test test specimen tube - Google Patents
A kind of moulding hardened sand permeability test test specimen tube Download PDFInfo
- Publication number
- CN208488364U CN208488364U CN201820863283.6U CN201820863283U CN208488364U CN 208488364 U CN208488364 U CN 208488364U CN 201820863283 U CN201820863283 U CN 201820863283U CN 208488364 U CN208488364 U CN 208488364U
- Authority
- CN
- China
- Prior art keywords
- sample cylinder
- column casing
- ladder
- main sample
- circle column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of moulding hardened sand permeability test test specimen tubes, including ladder circle column casing and main sample cylinder, the ladder circle column casing is hollow big mouth, the cylindrical tube of osculum diameter, the main sample cylinder is with externally threaded cylindrical tube, main sample cylinder is spun in the ladder circle column casing of big mouth diameter by screw thread, the internal orifice diameter of main sample cylinder and the osculum diameter of ladder circle column casing are identical, annular groove is equipped in the ladder plane of ladder circle column casing, O-ring is embedded in the annular groove of ladder plane, main sample cylinder spiral is pressed in fit sealing on the annular groove with O-ring.It is equipped with integrally formed hardened sand sample in main sample cylinder, test specimen tube is locked on the rubber stopper sample holder of direct-reading or intelligent permeability meter, hardened sand gas permeability data are conveniently measured.The test specimen tube is structurally reasonable, simple, easy to operate, and air-tightness is good, permeability test favorable reproducibility, and accuracy is high.
Description
Technical field
The utility model belongs to test apparatus technical field, and in particular to a kind of moulding hardened sand permeability test sample
Cylinder.
Background technique
Molding sand and core sand used in sand casting production mainly have water-glass sand, furans by its binder hardening property
Resin sand, precoated sand, cold core sand etc..Since type (core) sand gas forming amount of hardening property is larger, gas permeability generates gas to casting
Permeability, cold shut defective effect are most important, and the gas permeability of type (core) sand itself, which has the exhaust capacity of type (core) sand, to be compared
Big influence.Especially with precoated sand, cold core arenaceous shell mold casting labyrinth components, as automobile turbocharger volute,
Middle case, motor cylinder block, oil pressure valve etc., such as shell-shaped type (core) sand poor air permeability, exhaust capacity is poor, and casting will generate gas
Hole, cold shut defect.There are also use shell mould process for suction casting, quick foundation and casting of the gas permeability of shell mould to casting vacuum degree is inhaled
Mold-filling capacity have a great impact, directly affect suction casting casting quality.Therefore the inspection for molding and core making hardened sand gas permeability
Survey has important directive significance.
The gas permeability detection of moulding tide mould sand has become an important routine inspection project at present, but dry state is hardened
Sand permeability detection is seldom.There is a kind of special detection dry state hardened sand gas permeability with inflation O-ring in the prior art
Sample cylinder, needs first to make sample dry state hardened sand sample is then put into gas-flow closure in sample cylinder and carry out permeability test again, compared with
To be cumbersome, and the production of hardened sand sample needs special sampling machine, higher cost.Therefore it needs to design a kind of novel gas permeability
Test sample cylinder and the main sample cylinder of integral type dry state hardened sand sample.
Summary of the invention
A kind of moulding hardened sand gas permeability examination is provided the purpose of this utility model is to overcome the deficiencies in the prior art
Test test specimen tube.
In order to achieve the above objectives, the technology employed by the present utility model is including ladder circle column casing and main sample cylinder,
Be characterized in that: the ladder circle column casing is the cylindrical tube of hollow big mouth, osculum diameter, and the main sample cylinder is with external screw thread
Cylindrical tube, main sample cylinder is spun in the ladder circle column casing of big mouth diameter by screw thread, the internal orifice diameter and ladder of main sample cylinder
The osculum diameter of cylindrical drum is identical, and annular groove is equipped in the ladder plane of ladder circle column casing, and O-ring is embedded in ladder plane
Annular groove in, main sample cylinder spiral is pressed in fit sealing on the annular groove with O-ring.
Preferably, the junction of the big mouth diameter of the ladder circle column casing and osculum diameter is ladder-like.
Preferably, the inner wall of the big mouth diameter of the excircle external screw thread and ladder circle column casing of the main sample cylinder is equipped with interior
Screw thread matches.
Preferably, integrally formed hardened sand sample is equipped in the main sample cylinder.
Compared with prior art, the utility model has the beneficial effects that
Main sample cylinder with integrally formed hardened sand sample is threaded into the ladder circle of big mouth diameter by the utility model
Column casing internal pressure is closely sealed, and test is facilitated to measure hardened sand gas permeability data.Its test specimen tube is structurally reasonable, simple, easy to operate, gas
Close property is good, permeability test favorable reproducibility, and accuracy is high.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of moulding hardened sand permeability test test specimen tube of the utility model；
Attached drawing 2 is a kind of main sample barrel structure schematic diagram of moulding hardened sand permeability test test specimen tube of the utility model；
Attached drawing 3 is that a kind of stepped cylindrical barrel structure of moulding hardened sand permeability test test specimen tube of the utility model is illustrated
Figure.
Wherein, 1-ladder circle column casing；11-big mouth diameters；12-osculum diameters；13-internal screw threads；14-ladders are flat
Face；2-main sample cylinders；21-internal orifice diameters；22-external screw threads；3-samples；4-O-rings.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig.1, Fig. 2, Fig. 3, the utility model provide a kind of technical solution: including ladder circle column casing 1 and main sample cylinder 2,
Ladder circle column casing 1 is the cylindrical tube of hollow big mouth diameter 11, osculum diameter 12, and main sample cylinder 2 is the circle with external screw thread 22
Column-shaped barrel, main sample cylinder 2 are spun in the ladder circle column casing 1 of big mouth diameter 11 by screw thread, the internal orifice diameter 21 of main sample cylinder 2 and rank
The osculum diameter 12 of terraced cylindrical drum 1 is identical, annular groove is equipped in the interior ladder plane 14 of ladder circle column casing 1, in O-ring 4
In the annular groove of ladder plane 14, main 2 spiral of sample cylinder is pressed in fit sealing on the annular groove with O-ring 4.
Wherein, ladder circle column casing 1 and main sample cylinder 2 are process by steel pipe.
The size of whole test specimen tube is interior circular diameter Ф 50mm, is highly 140mm, and excircle dimension is Ф 60mm, Ф 70mm.
Wherein, the osculum diameter 12 of ladder circle column casing 1 is Ф 50mm, and it is highly 85mm that excircle dimension, which is Ф 60mm,；Ladder
11 internal screw thread 13 of big mouth diameter of cylindrical drum 1 is M60 × 2mm, and 13 length of internal screw thread is 20mm, and excircle dimension is Ф 70mm, high
Degree is 25mm.
Wherein, the internal orifice diameter of main sample cylinder is Ф 50mm, and it is highly 50mm that excircle dimension, which is Ф 60mm, wherein external screw thread
22 be M60 × 2mm, and 22 length of external screw thread is 20mm.
Sample 3 50 ± 1mm of Ф using national standard, 50 ± 1mm of height in main sample cylinder 2.
Moulding hardened sand sample 3 and main 2 integral production of sample cylinder, prevent sample 3 from not leaking closely in conjunction with main 2 inner wall of sample cylinder
Gas influences experimental result.
Embodiment one:
Weigh a certain amount of hardened sand sample 3(such as water-glass sand, furan resin-sand) it is put into the utility model test specimen tube, it is hammering into shape
The standard sample for impacting and being made that height is (50 ± 1) mm three times is hit on formula sampling machine.Main sample cylinder 2 in test specimen tube is taken out,
Lead to CO2 gas hardening on water-glass sand sample 3, furan resin-sand sample 3 hardens at normal temperature.
One group each three are tested, the main sample cylinder of water-glass sand, furan resin-sand sample after hardening is threaded into ladder circle
In column casing 1, the production work of hardened sand permeability test test specimen tube is completed.Test specimen tube is locked in direct-reading or intelligent gas permeability
On analyzer sample holder, the permeability test data of water-glass sand and furan resin-sand are measured.
Embodiment two:
Main 2 ghost of sample cylinder is put into the production hot core box mould of sand core, subsidiary sample preparation in cold box die, obtains overlay film
The main sample cylinder 2 of sand sample 3, the main sample cylinder 2 of cold core sample 3.
One group each three are tested, the main sample cylinder 2 of precoated sand sample 3, the main sample cylinder 2 of cold core sample 3 are threaded into stepped cylindrical
In cylinder 1, the production work of precoated sand, cold core sand permeability test test specimen tube is completed.By test specimen tube be locked direct-reading or intelligence thoroughly
On gas analyzer sample holder, precoated sand, cold core sand permeability test data are measured.
Claims (3)
1. a kind of moulding hardened sand permeability test test specimen tube, including ladder circle column casing (1) and main sample cylinder (2), it is characterised in that:
The ladder circle column casing (1) is the cylindrical tube of hollow big mouth diameter (11), osculum diameter (12), and the main sample cylinder (2) is
Cylindrical tube with external screw thread (22), main sample cylinder (2) is by being threaded into the ladder circle column casing (1) of big mouth diameter (11)
Interior, the internal orifice diameter (21) of main sample cylinder (2) is identical as osculum diameter (12) of ladder circle column casing (1), in ladder circle column casing (1)
Interior ladder plane (14) is equipped with annular groove, and O-ring (4) is embedded in the annular groove of interior ladder plane (14), main sample cylinder
(2) spiral is pressed in fit sealing on the annular groove with O-ring (4).
2. a kind of moulding hardened sand permeability test test specimen tube according to claim 1, it is characterised in that: the stepped cylindrical
The junction of the big mouth diameter (11) of cylinder (1) and osculum diameter (12) is ladder-like.
3. a kind of moulding hardened sand permeability test test specimen tube according to claim 1, it is characterised in that: the main sample cylinder
(2) integrally formed hardened sand sample (3) is equipped in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820863283.6U CN208488364U (en) | 2018-06-05 | 2018-06-05 | A kind of moulding hardened sand permeability test test specimen tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820863283.6U CN208488364U (en) | 2018-06-05 | 2018-06-05 | A kind of moulding hardened sand permeability test test specimen tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208488364U true CN208488364U (en) | 2019-02-12 |
Family
ID=65251230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820863283.6U Active CN208488364U (en) | 2018-06-05 | 2018-06-05 | A kind of moulding hardened sand permeability test test specimen tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208488364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535165A (en) * | 2018-06-05 | 2018-09-14 | 溧阳市联华机械制造有限公司 | A kind of moulding hardened sand permeability test test specimen tube |
-
2018
- 2018-06-05 CN CN201820863283.6U patent/CN208488364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535165A (en) * | 2018-06-05 | 2018-09-14 | 溧阳市联华机械制造有限公司 | A kind of moulding hardened sand permeability test test specimen tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208488364U (en) | A kind of moulding hardened sand permeability test test specimen tube | |
| CN103940387A (en) | Float-type pneumatic measuring instrument | |
| CN102401726A (en) | Air-tightness detecting device and method for corrugated pipe | |
| CN106949998A (en) | A kind of explosive charge equivalent test device and method of testing | |
| CN108535165A (en) | A kind of moulding hardened sand permeability test test specimen tube | |
| CN201331421Y (en) | Air tightness detecting device of engine cylinder head | |
| CN203758871U (en) | True density and porosity analyzer | |
| CN107843176B (en) | Calibrating device for solid volume expansion measuring instrument | |
| CN103149137A (en) | Constant-pressure steady-state gas permeability measuring instrument | |
| CN204944736U (en) | A kind of total pressure measurement probe | |
| CN208483175U (en) | A kind of core mould structure of the subsidiary main sample cylinder of permeability test | |
| CN106918442A (en) | A kind of sound-absorbing porous material flow resistance measuring instrument | |
| CN104406794A (en) | Experimental device for detecting aeroengine guider | |
| CN104374438A (en) | Gas flow detection device and method for light gas turbine combustion chamber nozzle | |
| CN203116721U (en) | Measuring device of cylinder liner inner diameter | |
| CN103542915B (en) | A kind of gas small flow standard device | |
| CN207007386U (en) | It is a kind of can multi-pipeline connection pressure gauge | |
| CN206311141U (en) | A kind of inside concrete humiture measurement mechanism | |
| CN1309284A (en) | Design method and equipment of built-in dual-venturi fluid measurer | |
| CN102728232A (en) | Method for detecting hollow fibrous membrane aperture performance | |
| CN109406370B (en) | Tunnel segment or surrounding rock lining permeability coefficient testing system and testing method | |
| CN108526394A (en) | A kind of core mould structure of the main sample cylinder of subsidiary permeability test | |
| CN203881639U (en) | Device for determining gas content of mortar | |
| CN208984435U (en) | A kind of coal ash ash cone production mold | |
| CN203053971U (en) | Cement concrete drying shrinkage testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |