STRECON Stripwound Container Principle Layout

The STRECON stripwound container consists of three interrelated components:

• The winding core (A) - made of high-alloyed tool steel or tungsten carbide (15% CO)
• The coiled stripwinding (B) - made of a special high-strength spring steel grade
• The casing (C) - standard tool steel material that covers the stripwound section and retains the outer geometry

The die insert – for example of steel, carbide or ceramics - is inserted into the container by press fitting. The inner bore of the container is conical, for example 1°.

Materials

The winding core of the STRECON stripwound container is made of high-alloyed tool steel materials from the Swedish tool steel producer of Uddeholm. The material selection depends on whether the container is for cold, warm, or hot forging applications. The core is hardened to approx. 56-58 HRc.

We use two kinds of steel strip materials: STRIP-200 for precision forging applications, where the container does not exceed a temperature higher than 200° C. STRIP-400 is heat resistant up to 400° C. In many cases, STRIP-400 would be required for warm and hot forging applications. STRIP-200 has a yield point of 2000 MPa, and STRIP-400 at about 1800 MPa. The hardness of the strip material is approx. 62-64 HRc.

The outer casing is made of a low-alloyed tool steel with hardness 38-48 HRc.