JX-21JG388-M5-AL, Aluminum composite machined parts, manufactured with smart home production, surface treatment anodized

The aluminum rivet manufacturing materials are usually produced with good plasticity.

The basic process of manufacturing hollow rivets is coil material - pickling, phosphating, saponification, drying - cold drawing - recrystallization annealing - fine drawing - multi-station cold heading machine extrusion molding (including shear off, upsetting, punching hollow) -Nickel or zinc plating on the surface - "blooming" test - packing and storage. In the "bloom" test (i.e., the test to simulate the riveting condition of hollow rivets), the hollow part of the rivet is pressed to produce expansion and flanging, and the flanging process is similar to the reaming and flanging process of thin plates, and the outer edge of the hollow part is subjected to the greatest force and deformation, so the forming performance of the material is very demanding. When the "flower" flanging, sometimes produce flanging cracking, upsetting and other defects.

(1) There are five main types of defects in the cold heading of ultra-low carbon steel rivets: header cracking, flanging cracking, under the heading, slip cracking, and incomplete flanging.

(2) The production process should mainly control the lower billet heating temperature ( 1150 ~ 1 200 ℃ ) and strictly control the coil spitting temperature in 910 ~ 930 ℃, so that the finished coil has a moderate grain size, to 6 ~ 6.5 grade is appropriate; improve the surface quality of the coil.

(3) In the use of materials should be adjusted in the amount of drawing deformation and in the appropriate process, the use of the corresponding annealing process to improve the cold heading performance of the material, reduce or eliminate the flanging cracking, under heading and flanging incomplete cold heading defects

Hollow rivets are commonly used in apparel, footwear, and other industries. Hollow rivets are based on semi-hollow rivets with a countersunk hollow all the way to the head and are used for riveting non-metallic materials with small loads due to their lightweight and weak heads. Widely used in combination cases, suitcases, and military bags, hollow nails (semi-hollow rivets) are made of soft wire and generally require that the rivet not be cracked after riveting, and there are many types. Core and core rivets are used for riveting thin and soft materials, the general requirements are not strict.

Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*90CM, or as your requirement.

Packaging & Delivery and Packaging Details

1. Shrink film+wooden box

2. Cardboard box+pallet

3. Color box

4. As per the customer's request