CN207751811U - A kind of PP-R pipe black brittleness test machine - Google Patents
A kind of PP-R pipe black brittleness test machine Download PDFInfo
- Publication number
- CN207751811U CN207751811U CN201820069301.3U CN201820069301U CN207751811U CN 207751811 U CN207751811 U CN 207751811U CN 201820069301 U CN201820069301 U CN 201820069301U CN 207751811 U CN207751811 U CN 207751811U
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- CN
- China
- Prior art keywords
- hollow column
- jump bit
- measured
- black brittleness
- test machine
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- 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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Links
- 229920001155 polypropylene Polymers 0.000 title claims description 31
- 230000000694 effects Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 description 8
- 239000005457 ice water Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 241000731961 Juncaceae Species 0.000 description 1
- 235000012206 bottled water Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Abstract
The utility model discloses a kind of PP R tubing black brittleness test machines, including mutually matched body, hollow column, control panel and lifting device, internal body is equipped with pedestal, pedestal upper surface is equipped with specimen holder, tubular product sample to be measured is placed on specimen holder, body upper is equipped with the through-hole that drops hammer, it is equipped with mutually matched chain sling in hollow column successively from top to bottom, clamper and jump bit, it is connected to the through-hole that drops hammer at the lower ending opening of hollow column, hollow column lower part is equipped with openable observation window, sloping baffle is equipped between hollow column and body, sloping baffle coordinates with jump bit.The PP R tubing black brittleness test machines of the utility model are easy to operate and accurate, and checking on to provide to the quality of PP R tubing tests a machine, and test result meets national standard.
Description
Technical field
The utility model is related to thermoplastic pipeline black brittleness testing fields, and in particular to a kind of test PP-R pipe
Black brittleness test machine.
Background technology
PP-R（Atactic copolymerized polypropene）Tubing is widely used in because it has good heat resisting and pressure resisting performance in building
Cold hot water piping system, including industry and civilian hot and cold water, potable water system, but since the strand of PP-R raw material is random
Arranged distribution determines that PP-R pipe shows certain brittleness, building water supply polypropylene pipe engineering technology rule in low temperature
It should be particularly mentioned that in model GB/T50349-2005：" when constructing in winter, it should be noted that the black brittleness of building water supply polypropylene pipe
Feature ", so, PP-R Pipe installings will carry out anti-frost protection measure at outdoor, when temperature is less than 0 DEG C it is not recommended that construction.
Currently, PP-R pipe standard GB/T/T18742.2-2017 rushes the black brittleness of tubing using simply supported beam pendulum
It hits and is tested, test condition is：0 DEG C of 15J, qualification determination standard are：Breakage rate is not more than the 10% of sample.National standard is advised
Fixed test condition is too loose, does not have the effect that quality is checked on.
Utility model content
The utility model aim is to provide a kind of test PP-R pipe black brittleness test machine, being capable of simple and effective handle
Close product quality.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows：
A kind of PP-R pipe black brittleness test machine, including mutually matched body, hollow column, control panel and lifting
Equipment, the internal body are equipped with pedestal, and the pedestal upper surface is equipped with specimen holder, and tubular product sample to be measured is placed on specimen holder
On tool, the body upper is located at the position right over tubular product sample to be measured and offers the through-hole that drops hammer, in the hollow column from
Top to bottm is equipped with mutually matched chain sling, clamper and jump bit successively, and the chain sling upper end is connected with lifting device, empty
It is connected to the through-hole that drops hammer at the lower ending opening of heart column, sloping baffle, the inclination is equipped between the hollow column and body
Baffle coordinates with jump bit.
The control panel is arranged in the side of hollow column and is connected by circuit and lifting device.
Activity cooperation between the jump bit and clamper, hammer body lower end is logical across dropping hammer after the jump bit free falling
Hole and treat survey tubular product sample impacted.
When testing PP-R pipe black brittleness, method includes the following steps：
（1）The preparation of tubular product sample to be measured：By PP-R pipe to be measured be placed on temperature be 21-25 DEG C, relative humidity 45-
24 hours in the state of 55RH%, tubing is then cut into 20 ㎝/section, cuts 20 sections；
（2）The pretreatment of tubular product sample to be measured：By step（1）The sample of middle well cutting is placed in ice-water bath to be located in advance
Reason, when PP-R pipe tube wall thickness is in the sections 3-8 ㎜, correspondingly the ice-water bath time is 0.5-4 hours, and specific ice-water bath is pre-
Processing time, as shown in the table：
When PP-R pipe thickness i.e. to be measured is 3 ㎜ or less, correspondingly ice-water bath pretreatment time is 55-75min；It is to be measured
PP-R pipe thickness is more than or equal to 3 ㎜ and when being less than 8 ㎜, and correspondingly ice-water bath pretreatment time is 165-195min.
（3）The test of tubular product sample to be measured：By step（2）It is crisp that the middle sample pre-processed is placed into PP-R pipe low temperature
It is tested on property test machine, when tube wall thickness is in the sections 2-5 ㎜, correspondingly jump bit weight is 1.5kg, shock height is
0.5-1.2m, the jump bit weight and shock height of different wall thickness tubing are as shown in the table：
PP-R pipe thickness i.e. to be measured is between 2.0-2.3 ㎜ and when including 2.0 ㎜ and 2.3 ㎜, correspondingly shock height
For 0.5m, for PP-R pipe thickness to be measured between 2.3-3.0 ㎜ and when including 3.0 ㎜, correspondingly shock height is 1.0m, to be measured
When PP-R pipe thickness is between 3-5.0, correspondingly shock height is 1.2m.
（4）Test result judges：When breakage rate is not more than the 30% of sample, product is considered as qualification.
The utility model has the advantages that：The PP-R pipe black brittleness test machine of the utility model is easy to operate
And it is accurate, checking on to provide to the quality of PP-R pipe tests a machine, and test result meets national standard.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model PP-R pipe black brittleness test machine；
Fig. 2 is the schematic diagram during the utility model PP-R pipe black brittleness test machine drops hammer；
In figure：1, body；11, pedestal；12, specimen holder；13, drop hammer through-hole；2, hollow column；21, chain sling；22, it presss from both sides
Holder；23, jump bit；3, control panel；4, lifting device；5, tubular product sample to be measured；6, sloping baffle.
Specific implementation mode
The technical solution of the utility model is illustrated with specific embodiment below, but the scope of protection of the utility model is unlimited
In this.
A kind of PP-R pipe black brittleness test machine, including mutually matched body 1, hollow column 2, control panel 3 and
Lifting device 4, the body 1 are internally provided with pedestal 11, and 11 upper surface of the pedestal is equipped with specimen holder 12, tubular product sample to be measured
5 are placed on specimen holder 12, and the position that 1 top of the body is located at right over tubular product sample 5 to be measured offers the through-hole that drops hammer
13, it is equipped with mutually matched chain sling 21, clamper 22 and jump bit 23, the chain sling 21 in hollow column 2 successively from top to bottom
Upper end and lifting device 4 are connected, and are connected to the through-hole 13 that drops hammer at the lower ending opening of hollow column 2, the hollow column 2 and
Sloping baffle 6 is equipped between body 1, the sloping baffle 6 coordinates with jump bit 23, and the setting of the control panel 3 is hollow vertical
It the side of column 2 and is connected by circuit and lifting device 4, control panel 3 can set shock height, the jump bit 23
The activity cooperation between clamper 22, hammer body lower end, which passes through, after 23 free falling of the jump bit drops hammer through-hole 13 and treats test tube
Material sample 5 is impacted.
When test, test machine is returned to zero by control panel 3 first, according to the wall thickness of the PP-R pipe of tubing, is determined
Then the quality and shock height of jump bit 23 are opened the protective door of body 1, will be put by pretreated tubular product sample 5 to be measured
It sets on specimen holder 12, then opens the observation window of hollow column 2, jump bit 23 is suspended on clamper 22, is then closed
Power switch is closed, the quality and shock height of previously determined jump bit 23 are set on control panel 3, then presses " impact "
Key, jump bit 23 do the movement of falling object, impact tubular product sample 5 to be measured, due to shape and 23 lower end of jump bit of sloping baffle 6
Shape it is consistent, can automatically by jump bit 23, make its will not treat survey tubular product sample 5 carry out secondary pulse, impact complete
Afterwards, tubular product sample 5 to be measured is taken out, surface condition is observed, test data sheet is carried out, then carries out the impact of next tubing, is tested
After the completion, the observation window position that jump bit is dropped to hollow column 2, is then shut off power supply.
Finally it should be noted that above implement to be merely intended for describing the technical solutions of the present application, but not for limiting the present application this practicality
Novel, although the utility model is described in detail with reference to preferred embodiment, those skilled in the art should manage
Solution, can be modified or replaced equivalently the technical solution of utility model, without departing from technical solutions of the utility model
Spirit and scope should all cover in the right of the utility model.
Claims (3)
1. a kind of PP-R pipe black brittleness test machine, including mutually matched body（1）, hollow column（2）, control panel
（3）And lifting device（4）, the body（1）It is internally provided with pedestal（11）, the pedestal（11）Upper surface is equipped with specimen holder
（12）, tubular product sample to be measured（5）It is placed on specimen holder（12）On, the body（1）Top is located at tubular product sample to be measured（5）Just
The position of top offers the through-hole that drops hammer（13）,
The hollow column（2）Inside it is equipped with mutually matched chain sling successively from top to bottom（21）, clamper（22）And jump bit
（23）, the chain sling（21）Upper end and lifting device（4）It is connected, hollow column（2）Lower ending opening at drop hammer through-hole
（13）Connection, the hollow column（2）Lower part is equipped with openable observation window, the hollow column（2）With body（1）Between set
There is sloping baffle（6）, the sloping baffle（6）With jump bit（23）Cooperation.
2. a kind of PP-R pipe black brittleness test machine according to claim 1, it is characterised in that the control panel（3）
It is arranged in hollow column（2）Side and pass through circuit and lifting device（4）It is connected.
3. a kind of PP-R pipe black brittleness test machine according to claim 1, it is characterised in that the jump bit（23）
With clamper（22）Between activity cooperation, the jump bit（23）Hammer body lower end passes through the through-hole that drops hammer after free falling（13）And it is right
Tubular product sample to be measured（5）It is impacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069301.3U CN207751811U (en) | 2018-01-16 | 2018-01-16 | A kind of PP-R pipe black brittleness test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069301.3U CN207751811U (en) | 2018-01-16 | 2018-01-16 | A kind of PP-R pipe black brittleness test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207751811U true CN207751811U (en) | 2018-08-21 |
Family
ID=63151720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820069301.3U Active CN207751811U (en) | 2018-01-16 | 2018-01-16 | A kind of PP-R pipe black brittleness test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207751811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120648A (en) * | 2018-01-16 | 2018-06-05 | 浙江伟星新型建材股份有限公司 | A kind of PP-R pipe black brittleness test machine and its test method |
-
2018
- 2018-01-16 CN CN201820069301.3U patent/CN207751811U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120648A (en) * | 2018-01-16 | 2018-06-05 | 浙江伟星新型建材股份有限公司 | A kind of PP-R pipe black brittleness test machine and its test method |
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