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Material: Carbon Steel, Stainless Steel (5.8 (free-cutting steel shall not be used, and the carbon content shall not be higher than 0.2%).)
Standard: Q C/T598©&IFI 148 (UR) - 2002
Many industrial applications require use of a Projection Weld Screw that will provide a hermetic seal to protect against leakage of water, oil, air, or gas. This weld screw is ideally suited for such applications. A 360° ring projection provides a strong and durable weld joint. The entire ring projection is highly versatile and enables cross-wire welding and welding to various surface shapes and materials. These industrial fasteners are available from Juxin Fasteners in different materials, dimensions, and thread sizes (inch and metric).
Typical Properties of the Projection and Spot Weld Screw
Material
C1010 High-Welding Quality, Low Carbon Steel (plain finish unless otherwise specified)
C1022 Heat-Treated, Carbon Steel (plain finish unless otherwise specified)
Austenitic Stainless Steel (passivated finish)
Available thread sizes
Inch Metric
#6-32 M3.5 x 0.6
#8-32 M4 x 0.7
#10-32 M5 x 0.8
1/4-20 M6 x 1.0
5/16-18 M8 x 1.25
3/8-16 M10 x 1.5
Note: Various dimensional characteristics are also available (lengths, heights, diameters, etc.)
Application notes
When properly installed, this projection weld screw will provide a strong hermetic seal to protect against leakage of water, oil, air, or gas. This makes this industrial fastener a popular choice in refrigeration and air conditioning. The 360° ring projection provides a robust circular weld joint and is ideal for cross-wire welding. It can also be welded to perforated metal surfaces.
For applications that require a weld screw that can also function as a strong hermetic seal, this projection weld screw is an ideal choice. The circular weld joint ensures the resulting weld is strong, well-balanced, and durable.
Juxin Fasteners has 22 years of experience in the industrial fastener business. We carry a full suite of industrial fastener products and pride ourselves on staying abreast of all industry trends and developments.
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Product Specification
Name: Type UR Projection Weld Studs
Material: Carbon Steel, Stainless Steel
Carbon steel Grade: 5.8,6.8,8.8,10.9
1. The working principle of projection welding:
Projection welding is an evolution of spot welding. Generally speaking, a mountain point is punched out on one of the two plates, and then welded. Due to the concentration of current, it overcomes the defect of nugget offset during spot welding. One or more nuggets form at the joint.
2. Features of the projection welding process:
During projection welding, the electrode must drop rapidly as the bump is sub-collapsed, otherwise spatter will occur due to pressure loss, so a projection welding machine with good electrode followability should be used.
The electrode pressure should ensure that the bumps are completely sub-collapsed when they reach the welding temperature so that the workpieces can fit closely. If the pressure is too high, the bumps will be crushed prematurely, and the function of projection welding will be lost.
The reduced flow density will reduce the strength of the joint, and the pressure will be too small to cause sub-heavy splashing.
Usually, the welding time of projection welding is longer than that of spot welding, and the flow is smaller than that of spot welding. Multi-point projection welding is a slightly longer welding time than single-point projection welding to reduce the difference in heating at each point caused by inconsistent bump heights.
The current required for each spot of projection welding is smaller than that of spot welding the same spot, but the current must be able to melt the bump before the bump is completely crushed. The welding current is approximately the current required for each bump multiplied by the number of bumps.
Size Can also be According to the Customer's requirement for manufacturing, please check the detailed specification sheet details PDF, CAD, 145-146 Page See more product details.
Product Packaging
Packaging: The inner packaging is a plastic bag, and the outer packaging is a carton. Then the tray. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size: 215*100*90CM, or as your request
Product Pictures
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