QB/T 2508-2001 Pipe wrench

This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of pipe clamps. This standard applies to pipe clamps for clamping and rotating steel pipes. QB/T 2508-2001 Pipe clamp QB/T2508-2001 Standard download decompression password: www.bzxz.net

Classification No. 7
Case No. 91032001
Light Industry Industry Standard of the People's Republic of China
Q8/T 2508
Pipe Wrench
2001-D7-16 Issued
Issued by China Light Industry Federation
Implementation on 2001-11-01
QB/T2508—2001
This standard is based on the original national standard GB8406-[98]. This standard was published in Document No. 112 of the State Economic and Trade Commission in 1999 and converted to Standard No. QB38531999. This standard involves the "light industry" business department of the central area. The center of the company is difficult to issue a full-scale work. It is the responsibility of the Shanghai People's Tool Center: Shanghai People's Tool Center, Hebei Chengde Tool Factory, and Xi'an Buxianwei Factory Co., Ltd. also participated. The standard must be started by Lin Kaode, Chen Chamin, Wang Che, and Zhang Chaoying. The original national release of the city's standard oil QB/T385R-1999 driving clamp! YYKANiKAa
People's Republic of China Light Industry Industry Standard
QB/T:2508-2001|| tt||QB/T3858-1999
This note specifies the pipe product delivery, heat treatment, testing, inspection rules, leather marking, packaging, dirty, hidden
technical standard design of the pipe type 2, non-standard
the following test standards contain the flower clauses, through the note one! And constitute the industry 4 standard clauses. This standard is effective only when the version shown in the mountain capital is in force. All standards are subject to revision, so that all should know the latest standard.
G/T699
GB:1 944C-:98S
5BT [173--1995
GR:T 1222-384
GR23 -)
3 Product classification
High quality purple rope steel
Adjustable static
Design Lu Jin
w goods plan
Enterprise full of people's culture and film market
Batch to warehouse plan element non-sample and door single clothing undertaking technology grab mutual F, suitable light
real who's basic style to draw the injury requirements.
, including market: 3 weekly sales: 1: one, single, etc.: 6 part of the picture" type mango
State I Ding Industry Federation 2001-0/-16 approved 1
2001-11- 01 implementation
9B/2508—2001
1 fold action: 2 a payment note: 3 a meeting: 4 a section every: 1 year: 6 a mistake: Figure 2, Pu Zijun
1 action: 2 throw-31: 4 account: - sheet set: 6: 7 seedling diagram
3.2 grade
The pipe has an load-bearing capacity of heavy age (with a small table), and a lower line (with a table) of one grade, 9.3 template
The pipe's benzene is a lot of "specified"
Edit (to 3.0℃)
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Yuerenguang Consultation:
3.4, product marking
QB/R 2508--2001
The marking of the pipe is composed of name, specification, type grade code and adoption standard. Example of marking for 4.50mm type 1 through-grade pipe clamp: pipe clamp 450IQB/T2508-2001
4.1 Materials
The pipe is made of the materials recommended in Table 2, or with materials with performance above the standard. Table 2
Shield color
Year handle color
Iron handle body
Iron pliers
Iron name
"Aluminum alloy needle parts
Manufacturing Association
Management of the temporary parts of each season heat treatment strength hardness technical table 3 current examination 3
Study software department
Sweet tooth department
JIRC47
GBT 699 of 45. 65
GB.T944O's KTHES0-1
When GBT?Ti.1M
699's 25,5.45
GHT1222's 65Ma
mouth exploration efficiency part
tube has the stress bearing capacity change table, the specified test shot energy, the loss 4
ordinary source
assembly performance
the fitting clearance between the active period of the pipe clamp and the clamp sleeve or the bridge body hole will be combined with the provisions of 5, 4. 4. 1
QB/T 2508—2001
4.4.2 Open the movable jaw to the maximum working state, and use the hand to pull the movable jaw in the working direction. After loosening, the movable jaw should be able to return to the assembled state.
4.4.3 When used for adjusting the nut, the movable jaw can move flexibly in the full stroke. 4.5 Surface quality
4.5.1 The parts of the pipe clamp shall not have cracks or burrs, and the rolled surface shall not have obvious oxide scale, sand heel, and air penetration defects that affect the appearance quality and performance. || tt||4.5.2 The surface roughness R value of the side surface of the opening is 3.2um, and the surface roughness R value of the other parts is 12.5umtm
4.5.3 The surface coating of the clamp body should be uniform and consistent in color, without obvious flow marks, delamination and other indentations. 5 Test method
5.1 Hardness test
The test is carried out according to the requirements of GBT230 or the requirements of Table 6. Table 6
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5.2 Hardness test 5.2.: The test piece of the test month is a steel mesh rod, the diameter of which is as specified in Figure 1, and the hardness is HRC25HRCSU. 5.2.2 Clamp the pipe clamp on the corresponding test piece (as shown in Figure 4). At the end of the drill handle, apply the test torsion test specified in Table 4. 52.3 Slow down and half-steady, and at full scale, set the value to maintain the connection with 1mm. After the pipe clamp is tightened, there should be no water change in each part.
5.3 Assembly performance test
5.3.1 The self-fitting of the movable jaws and the handle or pin change is measured from the front end by using a plug. 5.3.2 The flexibility of the movable jaws is tested by turning the adjustment nut by hand. 5.4 Dimension inspection
Use a universal measuring ruler to inspect it.
5.5 Surface quality
The surface quality of the pipe clamp is inspected by daily measurement, and the surface quality of the processing record is inspected by standard fence. -+TY KNrKAa-
5 Inspection and testing
Push sampling method
QB/T 2508-·2001
The sampling method of the meal shall be carried out according to the double sampling plan specified in G2R28. 6.2 The submitted batches shall be composed of the batches under relevant production conditions and with relevant production standards. 6.3 Quality level (AQ.)
What is the quality level (AQ1) of the inspection item F? The length of the sharp table is horizontal (A) (11.6.4 Re-inspection of the quality record of the equipment) 8.4. The product will be inspected at the beginning, and the unqualified products and samples damaged by the controlled inspection shall be replaced. 6.4.2 For the modified products, they can be submitted for acceptance again after manufacturing or classification, and the marking, packaging, transportation, storage and packaging of the sub-items shall be marked. When the products are transported, they shall be determined according to GB 5305.
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