JB/T 8650.3-1997 This standard specifies the type and basic parameters, marking, technical requirements, test methods, acceptance rules and marking, packaging, transportation and storage of metal cooling pipes. This standard is applicable to machine tool cooling systems with a nominal coolant pressure lower than 0.4MPa, and can also be used as a reference for other mechanical cooling systems. JB/T 8650.3-1997 Machine tool cooling system accessories Metal cooling pipes JB/T8650.3-1997 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JR/T8650.31997
Machine Tool Cooling System Accessories
Metal Cooling Pipe
1997-08-18 Issued
The Ministry of Machinery Industry of the People's Republic of China
1998·01-01 Implementation
JR/T 865U. 3--1997
This standard is issued by the National Jintong Plan Machine Tool Standardization Technical Committee. This standard is approved by the Beijing Machine Tool Institute of the Ministry of Machinery Industry. The drafting place of this standard: Beijing Machine Tool Institute of the Ministry of Machinery Industry, Jiangsu Honghangxing Parts Jiangsu Xiaojiang City Jinhe Cartilage) Beijing First Machine Delivery, Beijing Yinglan Machine Tool Factory.
1 Scope
Machinery Industry Standard of the People's Republic of China
Machine Tool Cooling System Accessories
Metal Cooling Pipe
JB/I8650.31997
This standard stipulates the basic types of cooling parts, marking, technical safety requirements, test methods, acceptance rules and benefits, installation, transportation and storage, etc.
This document is applicable to the cooling system of machines with a nominal pressure of less than U.4MP. The cooling system of other machines can also be used accordingly.
2 Cited Standards
The following are the texts of this standard cited in the standard. When this standard is published, the versions shown are valid. The use of this standard should be based on the latest version. GB19661 GB J07-81 G6459-85 GB7307-87 515000388 3 Type and basic parameters No adjustment number Basic size (diameter 1 -60c mm) general frequency tolerance and fit (diameter 1--355m) gold mesh coating acetate dew test (A multi-test) development and other inorganic coating thickness measurement methods review Beishou Technology Precision Pipe
Residual Danger Cutting Machine Tool Reading Cleanliness Determination
Type quantity 1 Table 1 Table 2,
Long 1 Medical Sample with Effect Marking Should Comply with the Visual Standard of Taiwan Center 7307, H Type
Ministry of Machinery Industry 1997-08-18 Approved
1998101 Implementation
and gland effect header
F15/:8650 .3-1997
Mosquito joint
M2c×1-
Cooling pipe joint outer diameter 4-M20×1.5 cooling pipe total length 1, is 200mm14 cold 1 joint outer diameter one front B, the total length of the cooling part of the gold exhibition is 2Um, the examples are: cooling part pipe M20X1.5X200JB/T6650.319S7 gold cold C1/2B×20CJB/T850.3-19
Cooling sound joint outer diameter = M2×[.5, the total length of the cooling pipe is 200m hot and cold outer diameter = G1/2. The total length of the cold section is 2m. The markings on the cooling pipes are as follows: cold stripe nM20×1.5X200) JR/T:
Jinrui cooling belt B (2×3C0/: 3650.319075 Technical requirements
5. "The material points of all parts are 1. The quality is, the heat treatment engineer and the surface treatment are in accordance with the relevant technical documents. 5.2 The surface of the cold pipe is metal (12123 surface and glossy, there shall be no spots, holes, bubbles and peeling. Phenomenon
5.3 The cooling pipe should be tested under the specified conditions, and its surface should be free of rust: 5. The cooling pipe connection part should be sealed, and the water pressure test pipe body connection part should be leak-proof. 56 The cooling micro joint end should be intact to ensure interchangeability. The basic size should be in accordance with the GB standard. The internal thread system is the external thread system (no layer formation, no sand holes, sand drive, etc.), and the surface should not have dents, hair loss, flash scratches, etc. 5. 8 Internal cleaning, the determination of its cleanliness shall comply with the requirements of J5)(I3. 5.9 The maximum displacement change shall not exceed 50mm: www.bzxz.net
6 Test method
Monthly general quantity shall be weighed to check the external size of the cold part JB/T 8650.3--1997
62 According to (B463, the original thickness shall be determined, and the room shall comply with 5.2. The potential of the medicine shall be determined according to G6459. After the salt dew test, the cover layer shall be tested. The surface shall not meet the requirements of .3: 64 The maximum displacement change test.
6.5 Thread ring inspection
.6 The cold period shall be subjected to a water pressure test of 1.25 times the nominal pressure. The protection period shall comply with 5.5. 7 Acceptance criteria
.1 Before the product leaves the factory, it shall be inspected and selected according to the product number 100 and selected according to 5.1.6.4.5.>, 0.K4.7 and 5.5.1. The product shall be inspected and selected according to the product number 100 before leaving the factory. The quality control department shall conduct a quality inspection according to the corresponding technical requirements of the product and this specification. The product will be issued to the factory.
7.1 Inhibition inspection:
a) Blue fog test:
Determination of chain layer
) Displacement change test.
8 Marking, transportation and storage
8.1 The surface shall be carefully listed to prevent corrosion during delivery and storage: Under normal transportation and general killing conditions. From the date of the factory, it shall be guaranteed that there will be no blue correction for half a year.
8.2 After cooling, the roots should be wrapped with paper or plastic film before packing. Each box should be smaller than 59.4.3 Each box should have a factory inspection mark, including: 1. Product name, model, type, specification; 2. Quantity: 3. Date of manufacture or production batch number 4. With accompanying name.
8.4 The product should not be exposed to the sun during transportation. It should be placed in a dry and ventilated warehouse during storage.
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