Inner threaded copper tube with diameter phi of 3
An internal thread, threaded pipe technology, applied in the field of Φ3 internal thread copper pipe, can solve the problems of large amount of consumables, large outer diameter, increased production cost, etc., and achieves improved energy efficiency ratio, large inner surface area, and small outer diameter. Effect
Inactive Publication Date: 2011-09-14
CNMC ALBETTER ALBRONZE
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Problems solved by technology
Usually the outer diameter of the internally threaded copper pipes produced today is large, and the amount of consumables is large, resulting in waste and increasing production costs
Currently, there is no good solution
Method used
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[0007] Refer to the attached figure 1 The Φ3 internally threaded copper pipe of the present invention will be described in detail below.
[0008] The Φ3 internal thread copper pipe of the present invention requires technical parameters: after forming and drawing, the outer surface roughness of the threaded pipe is 0.02Ra, the meter weight is 19-22g / m, the outer diameter is Φ3, the number of teeth is 22, and the helix angle is 15°. Addendum angle 20°-40°, addendum arc r=0.03mm, tooth bottom arc r=0.02mm, bottom wall thickness 0.18-0.22mm, total wall thickness 0.33-0.36mm, tooth height 0.13-0.17mm, Teeth pitch 0.20mm, helix angle 15°, etc.
[0009] Except for the technical features described in the instructions, all are known technologies by those skilled in the art.
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Abstract
The invention discloses an inner threaded copper tube with the diameter phi of 3, belonging to inner threaded copper tubes. The inner threaded copper tube with the diameter phi of 3 has the following concrete parameter requirements: the roughness of the copper surface outside the threaded tube is 0.02Ra, the grams per meter is 19-22g / m, the outer diameter phi is 3, the tooth number is 22, the spiral angle is 15 degrees, the addendum angle is 20-40 degrees, the addendum arc r is equal to 0.03m, the bottom arc r is equal to 0.02mm, the bottom wall thickness is 0.18-0.22 mm, the total wall thickness is 0.33-0.36 mm, the tooth height is 0.13-0.17mm, the intertooth space is 0.20mm, the spiral angle is 15 degrees, and the like. Compared with the prior, the inner threaded copper tube with the diameter phi of 3 has the characteristics of large inner surface area, small outer diameter and the like, the energy efficiency ratio is improved, and the inner threaded copper with the diameter phi of 3 has very good popularization and application values.
Description
technical field [0001] The invention relates to an internally threaded copper pipe, in particular to a Φ3 internally threaded copper pipe used for condensation and heat dissipation devices in the air-conditioning and refrigeration industry. Background technique [0002] Internally threaded copper tubes have been widely used in condensation and heat dissipation in the air-conditioning and refrigeration industry. With the development of science and technology, internally threaded copper tubes are developing in the direction of thinner diameter, thinner wall, tooth height, energy saving, and environmental protection. Generally, the external diameter of the internally threaded copper pipes currently produced is large, and the amount of consumables is large, which causes waste and increases production costs. Currently, there is no good solution. Contents of the invention [0003] The technical task of the present invention is to provide a kind of Φ3 internally threaded copper ...
Claims
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IPC IPC(8): F28F1/40
Inventor 赵振乾张西军梁琦明赵琛李学帅郭丽丽赵军史福玲田英明郑朋燕张伟
Owner CNMC ALBETTER ALBRONZE