CN110514166A - A kind of internal-thread seamless steel pipe thread shape method of inspection - Google Patents
A kind of internal-thread seamless steel pipe thread shape method of inspection Download PDFInfo
- Publication number
- CN110514166A CN110514166A CN201910876891.XA CN201910876891A CN110514166A CN 110514166 A CN110514166 A CN 110514166A CN 201910876891 A CN201910876891 A CN 201910876891A CN 110514166 A CN110514166 A CN 110514166A
- Authority
- CN
- China
- Prior art keywords
- thread
- internal
- steel pipe
- molding cavity
- seamless steel
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of internal-thread seamless steel pipe thread shape methods of inspection, including molding cavity, elastic packing rubber ring, moulding material input pipe and fixed link, the fan-shaped cylinder setting of molding cavity, the arc surface of the molding cavity is in open type, elastic packing rubber ring is set to the edge of molding cavity opening, on the side wall that the moulding material input pipe is detachably set to molding cavity is distracted, the fixed link detachably rotate be set to molding cavity side wall it is distracted on.The invention belongs to thread quality detection technique fields, specifically there is provided one kind can intuitively obtain the internal-thread seamless steel pipe internal screw thread form of the special thread form of heavy caliber, strong operability at low cost, will not internal threads cause the internal screw thread form method of inspection of damage.
Description
Technical field
The invention belongs to thread quality detection technique fields, in particular to a kind of internal-thread seamless steel pipe thread shape to examine
Method.
Background technique
Internal-thread seamless steel pipe is a kind of special-shaped seamless steel pipe of the inner surface with spiral convex rib, is generally used for high-pressure boiler
It is interior, due to the indent and convex internal screw thread of its inner wall, it can effectively overcome when medium slow flow in steel pipe and generate laminar flow phenomenon, simultaneously
The steam blanket effect that can inhibit steel pipe inner wall, improves the heat-transfer effect of boiler water wall, keeps tube wall temperature more uniform.Therefore
It is most important for the service performance of concave-convex internal screw thread internal threads seamless steel pipe on inner wall.But internal-thread seamless steel pipe
Special construction must determine that its machining accuracy is lower by cold drawn forming.
The method of inspection of traditional internal screw thread is to carry out insertion precession using corresponding plug thread gauge, if it is possible to which precession is then
Illustrate thread size qualification, but the shape of specific screw thread is undetectable；When for measuring some special threads, need certainly
Plug thread gauge processed, not only time-consuming, effort, can the cost of manufacture be also very high, plug thread gauge can only be examined to be inserted into internal screw thread, no
It can detect the shape of internal screw thread, and with the risk that can damage internal screw thread during detection；Although for some diameters
Biggish whorl work piece can be used screw clamp plate and test, and equally can only also check whether internal screw thread can match with dental lamina
It closes, can not detect the shape of internal screw thread；Since the internal screw thread effect of internal-thread seamless steel pipe is not intended to and screw thread
Cooperation, therefore its thread form and the difference of the conventional form of thread are larger, common feeler gauge and thread form plate can not directly use and
Need special processing.
Summary of the invention
To solve above-mentioned existing problem, the present invention provides the interior spiral shells that one kind can intuitively obtain the special thread form of heavy caliber
Line seamless steel pipe internal screw thread form, strong operability at low cost, will not internal threads cause damage internal screw thread form inspection party
Method.
The technical solution adopted by the invention is as follows: a kind of internal-thread seamless steel pipe thread shape method of inspection, including molding
Cavity, elastic packing rubber ring, moulding material input pipe and fixed link, the fan-shaped cylinder setting of the molding cavity, it is described at
The arc surface of cavity is in open type, and elastic packing rubber ring is set to the edge of molding cavity opening, the moulding material input
Pipe detachably set on molding cavity side wall it is distracted on, the fixed link detachably rotate set on molding cavity side wall it is distracted on.
Further, the molding cavity side wall rib is equipped with moulding material overfall.
Further, the fixed link is equipped with two groups, and the fixed link adjustable length, the fixed link movable end is equipped with
Skid-proof rubber.
Further, the width of the elastic packing rubber ring is equal to the wall thickness of molding cavity, the elastic packing rubber
The thickness of circle is greater than the height of the inner surface convex ribs of common internal-thread seamless steel pipe.
Further, use can be with the soft rubber material of deformation, when elastic packing rubber for the elastic packing rubber ring
Circle will become the shape of the convex ribs on seamless steel pipe surface when encountering the convex ribs on internal-thread seamless steel pipe surface, and seamless with internal screw thread
Sealing is formed between the convex ribs of steel tube surface.
The present invention also proposes a kind of internal-thread seamless steel pipe thread shape method of inspection, uses aforementioned internal screw thread seamless steel
Pipe screw thread shape examines auxiliary tool, and the specific method is as follows:
1) it sprays pellosil: spraying one layer of pellosil in internal screw thread seamless steel pipe internal wall surface area to be tested；
2) fixed-type cavity: moulding material input pipe is installed to molding cavity by the selection suitable molding cavity of size
In side wall it is distracted on, on the side wall that two groups of fixed links are installed to molding cavity is distracted；After pellosil forming and hardening, by molding cavity
Silica gel diaphragm area is placed into, by the stupefied axis parallel and opening and silica gel with internal-thread seamless steel pipe in the side of molding cavity when placement
Diaphragm area is overlapped, and extends the length of two groups of fixed links, the skid-proof rubber of fixed link movable end is allow to arrive to internal-thread seamless steel pipe
Inner wall on；
3) it inputs polyurethane foam glue: inputting polyurethane foam glue from moulding material input pipe, until moulding material overflows
Mouth has polyurethane foam glue spilling.
4) it takes out moulding material: forming polyurethane identical with molding cavity shape after polyurethane foam glue is fully cured
The length of fixed link is shortened, and molding cavity is taken out from internal-thread seamless steel pipe by foaming body, due to polyurethane foam glue
The toughness between silica gel can form one with pellosil after polyurethane foam adhesive curing.
5) measure: due to the shape of pellosil and the internal screw thread form of internal-thread seamless steel pipe be completely it is intermeshing,
By the shape of pellosil can accurate image the shape for extrapolating internal-thread seamless steel pipe internal screw thread, at this time according to external screw thread
Measurement method can easily measure internal-thread seamless steel pipe internal screw thread data.
Using the internal-thread seamless steel pipe thread shape method of inspection of the present invention, has the following beneficial effects: and do not need to process
Additional screw thread ring taps is applicable in the internal screw thread of various special shape threads；It can be with the internal screw thread form of internal threads seamless steel pipe
Visualization can carry out detailed measurement with all data of internal threads.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the auxiliary tool of the internal-thread seamless steel pipe thread shape method of inspection of the present invention；
Wherein, 1, molding cavity, 2, elastic packing rubber ring, 3, moulding material input pipe, 4, fixed link, 5, moulding material
Overfall, 6, skid-proof rubber.
Specific embodiment
In conjunction with attached drawing, the present invention is described in further details.
As shown in Figure 1, the technical solution adopted by the present invention is as follows: a kind of internal-thread seamless steel pipe thread shape method of inspection
Auxiliary tool, including molding cavity 1, elastic packing rubber ring 2, moulding material input pipe 3 and fixed link 4, the forming cavity
The setting of the fan-shaped cylinder of body 1, the arc surface of the molding cavity 1 are in open type, and elastic packing rubber ring 2 is set to molding cavity 1
The edge of opening, the moulding material input pipe 3 detachably set on the side wall of molding cavity 1 it is distracted on, the fixed link 4 is removable
Unload rotation be set to 1 side wall of molding cavity it is distracted on.
The 1 side wall rib of molding cavity is equipped with moulding material overfall 5.
The fixed link 4 is equipped with two groups, and 4 adjustable length of fixed link, 4 movable end of fixed link is equipped with skid-proof rubber
6。
The width of the elastic packing rubber ring 2 is equal to the wall thickness of molding cavity 1, the thickness of the elastic packing rubber ring 2
Degree is greater than the height of the inner surface convex ribs of common internal-thread seamless steel pipe.
The elastic packing rubber ring 2 uses can be with the soft rubber material of deformation, in elastic packing rubber ring 2 is encountered
Will become the shape of the convex ribs on seamless steel pipe surface when the convex ribs on screw thread seamless steel pipe surface, and with internal-thread seamless steel pipe surface
Convex ribs between formed sealing.
A kind of internal-thread seamless steel pipe thread shape method of inspection proposed by the present invention, specifically used method are as follows:
1) it sprays pellosil: spraying one layer of pellosil in internal screw thread seamless steel pipe internal wall surface area to be tested；
2) fixed-type cavity: moulding material input pipe is installed to molding cavity by the selection suitable molding cavity of size
In side wall it is distracted on, on the side wall that two groups of fixed links are installed to molding cavity is distracted；After pellosil forming and hardening, by molding cavity
Silica gel diaphragm area is placed into, by the stupefied axis parallel and opening and silica gel with internal-thread seamless steel pipe in the side of molding cavity when placement
Diaphragm area is overlapped, and extends the length of two groups of fixed links, the skid-proof rubber of fixed link movable end is allow to arrive to internal-thread seamless steel pipe
Inner wall on；
3) it inputs polyurethane foam glue: inputting polyurethane foam glue from moulding material input pipe, until moulding material overflows
Mouth has polyurethane foam glue spilling；
4) it takes out moulding material: forming polyurethane identical with molding cavity shape after polyurethane foam glue is fully cured
The length of fixed link is shortened, and molding cavity is taken out from internal-thread seamless steel pipe by foaming body, due to polyurethane foam glue
The toughness between silica gel can form one with pellosil after polyurethane foam adhesive curing.
5) measure: due to the shape of pellosil and the internal screw thread form of internal-thread seamless steel pipe be completely it is intermeshing,
By the shape of pellosil can accurate image the shape for extrapolating internal-thread seamless steel pipe internal screw thread, at this time according to external screw thread
Measurement method can easily measure internal-thread seamless steel pipe internal screw thread data.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (5)
1. a kind of internal-thread seamless steel pipe thread shape method of inspection, it is characterised in that: including molding cavity, elastic packing rubber
Circle, moulding material input pipe and fixed link, the fan-shaped cylinder setting of molding cavity, the arc surface of the molding cavity is in spacious
Open type, elastic packing rubber ring are set to the edge of molding cavity opening, and the moulding material input pipe is detachably set to forming cavity
On the side wall of body is distracted, the fixed link detachably rotate be set to molding cavity side wall it is distracted on.
2. a kind of internal-thread seamless steel pipe thread shape method of inspection according to claim 1, it is characterised in that: it is described at
Cavity side wall rib is equipped with moulding material overfall.
3. a kind of internal-thread seamless steel pipe thread shape method of inspection according to claim 1, it is characterised in that: described solid
Fixed pole is equipped with two groups, and the fixed link adjustable length, the fixed link movable end is equipped with skid-proof rubber.
4. a kind of internal-thread seamless steel pipe thread shape method of inspection according to claim 1, it is characterised in that: the bullet
Property sealing rubber ring width be equal to the wall thickness of molding cavity, the thickness of the elastic packing rubber ring be greater than common internal screw thread without
Stitch the height of the inner surface convex ribs of steel pipe.
5. a kind of internal-thread seamless steel pipe thread shape method of inspection according to claim 1, it is characterised in that: the bullet
Property sealing rubber ring uses can be with the soft rubber material of deformation.
1) it sprays pellosil: spraying one layer of pellosil in internal screw thread seamless steel pipe internal wall surface area to be tested；
2) fixed-type cavity: moulding material input pipe is installed to molding cavity side wall by the selection suitable molding cavity of size
It is interior it is distracted on, on the side wall that two groups of fixed links are installed to molding cavity is distracted；After pellosil forming and hardening, molding cavity is placed
It is the side of molding cavity is stupefied with the axis parallel and opening of internal-thread seamless steel pipe and pellosil area when placement to silica gel diaphragm area
Domain is overlapped, and extends the length of two groups of fixed links, the skid-proof rubber of fixed link movable end is allow to arrive to the interior of internal-thread seamless steel pipe
On wall；
3) it inputs polyurethane foam glue: polyurethane foam glue is inputted from moulding material input pipe, until moulding material overfall has
Polyurethane foam glue overflows.
4) it takes out moulding material: forming polyurethane foam identical with molding cavity shape after polyurethane foam glue is fully cured
The length of fixed link is shortened, and molding cavity is taken out from internal-thread seamless steel pipe by body, due to polyurethane foam glue and silicon
Toughness between glue can form one with pellosil after polyurethane foam adhesive curing.
5) measure: due to the shape of pellosil and the internal screw thread form of internal-thread seamless steel pipe be completely it is intermeshing, pass through
The shape of pellosil can accurate image the shape for extrapolating internal-thread seamless steel pipe internal screw thread, at this time according to externally threaded survey
Amount method can easily measure the data of the internal screw thread of internal-thread seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876891.XA CN110514166B (en) | 2019-09-17 | 2019-09-17 | Auxiliary tool and method for inspecting thread shape of internal thread seamless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876891.XA CN110514166B (en) | 2019-09-17 | 2019-09-17 | Auxiliary tool and method for inspecting thread shape of internal thread seamless steel tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110514166A true CN110514166A (en) | 2019-11-29 |
| CN110514166B CN110514166B (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910876891.XA Active CN110514166B (en) | 2019-09-17 | 2019-09-17 | Auxiliary tool and method for inspecting thread shape of internal thread seamless steel tube |
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Citations (6)
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|---|---|---|---|---|
| JP2004085514A (en) * | 2002-07-03 | 2004-03-18 | Isuzu Motors Ltd | Method and instrument for measuring lead of screw |
| CN101797701A (en) * | 2010-01-18 | 2010-08-11 | 北京航空航天大学 | On-line non-contact laser stereo scanning detection device for internal screw threads of tubing coupling |
| CN203479211U (en) * | 2013-10-15 | 2014-03-12 | 吴江思库特精密电子有限公司 | Screw rod for detecting internal threads |
| CN106017253A (en) * | 2016-07-01 | 2016-10-12 | 沪东中华造船(集团)有限公司 | Internal thread sampling tool and sampling method |
| CN205879080U (en) * | 2016-06-17 | 2017-01-11 | 北京航天时代光电科技有限公司 | Rotatory appurtenance of short -term test internal thread |
| CN107990823A (en) * | 2016-10-26 | 2018-05-04 | 上海派尼科技实业股份有限公司 | A kind of nonstandard thread measurement method |
-
2019
- 2019-09-17 CN CN201910876891.XA patent/CN110514166B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004085514A (en) * | 2002-07-03 | 2004-03-18 | Isuzu Motors Ltd | Method and instrument for measuring lead of screw |
| CN101797701A (en) * | 2010-01-18 | 2010-08-11 | 北京航空航天大学 | On-line non-contact laser stereo scanning detection device for internal screw threads of tubing coupling |
| CN203479211U (en) * | 2013-10-15 | 2014-03-12 | 吴江思库特精密电子有限公司 | Screw rod for detecting internal threads |
| CN205879080U (en) * | 2016-06-17 | 2017-01-11 | 北京航天时代光电科技有限公司 | Rotatory appurtenance of short -term test internal thread |
| CN106017253A (en) * | 2016-07-01 | 2016-10-12 | 沪东中华造船(集团)有限公司 | Internal thread sampling tool and sampling method |
| CN107990823A (en) * | 2016-10-26 | 2018-05-04 | 上海派尼科技实业股份有限公司 | A kind of nonstandard thread measurement method |
Non-Patent Citations (1)
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| 沈晓栋: "无缝内螺纹钢管螺纹成形后的超声波检测", 《无损探伤》 * |
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| CN110514166B (en) | 2021-10-01 |
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