SU142453A1 - Device for testing tubular specimens for durability - Google Patents

Device for testing tubular specimens for durability

Info

Publication number
SU142453A1
SU142453A1 SU674082A SU674082A SU142453A1 SU 142453 A1 SU142453 A1 SU 142453A1 SU 674082 A SU674082 A SU 674082A SU 674082 A SU674082 A SU 674082A SU 142453 A1 SU142453 A1 SU 142453A1
Authority
SU
USSR - Soviet Union
Prior art keywords
durability
tubular specimens
testing tubular
testing
specimens
Prior art date
Application number
SU674082A
Other languages
Russian (ru)
Inventor
А.А. Лебедев
Original Assignee
А.А. Лебедев
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by А.А. Лебедев filed Critical А.А. Лебедев
Priority to SU674082A priority Critical patent/SU142453A1/en
Application granted granted Critical
Publication of SU142453A1 publication Critical patent/SU142453A1/en

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

Известны устройства дл  испытани  на длительную прочность трубчатых образцов при сложно-напр женном состо нии, которые выполнены в виде двух т г с переходниками (переходами), соедин юндими испытуемый образец с захватами испытательной машины, снабженные защитным кожухом, а также, приспособлением дл  подачи во внутреннюю полость образца инертного газа. Однако эти устройства не обеспечивают надежной безопасности в эксплуатаци Отличительной особенностью описываемого устройства  вл етс  размещение нагревател  внутри полости образца. Устройство такой конструкции повышает точность и безопасность при проведении испытаний с повышенным давлением.Devices for testing the long-term durability of tubular specimens in a complex stress state are known, which are made in the form of two plugs with adapters (transitions), connecting the test specimen with the grips of a testing machine, equipped with a protective casing, and also a device for feeding the internal cavity of the sample of inert gas. However, these devices do not provide reliable safety in operation. A distinctive feature of the described device is the placement of the heater inside the sample cavity. A device of this design improves accuracy and safety when conducting tests with increased pressure.

На чертеже изображено устройство в разрезе.The drawing shows the device in section.

Испытуемый образец У крепитс  посредством резьбового соединени  к верхнему и нижнему, переходам 2 и 5, которые т гами 4 и 5 соединены с захватами системы нагружени .The test specimen U is fastened by means of a threaded joint to the upper and lower, transitions 2 and 5, which are connected to the grips of the loading system by means of traces 4 and 5.

Защитный кожух 6, снабженный термоизол цией 7 центрируетс  своей круговой проточкой по трем пальцам 8 нижнего перехода и по фланцу верхнего перехода.The protective cover 6, provided with thermal insulation 7, is centered with its circular groove on three fingers 8 of the lower junction and on the flange of the upper junction.

Крепление защитного кожуха к нижнему переходу осуществл етс  прижимным диском 9, посаженным на шпильки W.The protective cover is attached to the lower transition by means of a clamping disk 9 mounted on the studs W.

Дл  съема кожуха кругова  проточка имеет три выхода на торец, обеспечивающих проход пальцев нижнего перехода.For removal of the casing, the circular groove has three exits at the end, ensuring the passage of the fingers of the lower junction.

Нагреватель из металлокерамического сплава выполнен в виде стержн  41, посаженного концентрично внутри кожуха 12 и поив   пенного к нему одним концом, а второй конец стержн  оканчивае1с  медным электродом 13.The heater is made of a cermet alloy made in the form of a rod 41, which is planted concentrically inside the casing 12 and having foamed to it with one end, and the other end of the rod ends with a copper electrode 13.

Питание нагревател  происходит от понижающего трансформатора через зажимы 14 и 15, соединенные соответственно с медным лпектродом и нижней т гой 5, подключенной на массу. Кольцо 16, изготовленное -лзThe heater is supplied from a step-down transformer through clamps 14 and 15, connected respectively to the copper electrode and the lower link 5 connected to ground. Ring 16 Made by LZ

л«l "

%. %

.  .

SU674082A 1960-07-20 1960-07-20 Device for testing tubular specimens for durability SU142453A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU674082A SU142453A1 (en) 1960-07-20 1960-07-20 Device for testing tubular specimens for durability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU674082A SU142453A1 (en) 1960-07-20 1960-07-20 Device for testing tubular specimens for durability

Publications (1)

Publication Number Publication Date
SU142453A1 true SU142453A1 (en) 1960-11-30

Family

ID=48298309

Family Applications (1)

Application Number Title Priority Date Filing Date
SU674082A SU142453A1 (en) 1960-07-20 1960-07-20 Device for testing tubular specimens for durability

Country Status (1)

Country Link
SU (1) SU142453A1 (en)

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