Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts

A stripper tube for urea synthesis equipment, the stripper tube comprising:

• a fluid conducting first region including a corrosion resistant first material selected from the group consisting of zirconium and zirconium alloys;
• and
• a fluid conducting second region including a second material selected from the group consisting of titanium, titanium alloys, and stainless steel;
• a fluid conducting third region including a third material selected from the group consisting of titanium, titanium alloys, and stainless steel;
• wherein the second region and the third region are directly joined to opposite ends of the first region by a friction welding technique to form a unitary fluid conducting part,
• wherein a weld region formed by friction welding the second region to the first region is substantially free of alloys and interdiffusion layers of the corrosion resistant first material and the second material;
• and
• wherein a weld region formed by friction welding the third region to the first region is substantially free of alloys and interdiffusion layers of the corrosion resistant first material and the third material.

A part for an article of equipment, the part comprising:

• a fluid conducting first region including a corrosion resistant first material selected from the group consisting of zirconium and zirconium alloys;
• and
• a fluid conducting second region including an outer layer of a second material selected from the group consisting of titanium, titanium alloys, and stainless steel, and an inner layer of a corrosion resistant material selected from the group consisting of zirconium and zirconium alloys;
• wherein the first region and the second region are directly joined by a friction welding technique to form a unitary fluid, conducting part, and wherein a weld region formed by friction welding the first region directly to the second region is substantially free of alloys and interdiffusion layers of the corrosion resistant first material and the second material.

A stripper tube for urea synthesis equipment, the stripper tube comprising:

• a fluid conducting first region including a corrosion resistant first material selected from the group consisting of zirconium and zirconium alloys;
• and
• a fluid conducting second region including an outer layer of a second material selected from the group consisting of titanium, titanium alloys, and stainless steel, and an inner layer of a corrosion resistant material selected from the group consisting of zirconium and zirconium alloys;
• wherein the first region and the second region are directly joined by a friction welding technique to form a unitary fluid conducting part, and wherein a weld region formed by friction welding the first region directly to the second region is substantially free of alloys and interdiffusion layers of the corrosion resistant first material and the second material.

A stripper tube for urea synthesis equipment, the stripper tube comprising:

• a fluid conducting first region including a corrosion resistant first material selected from the group consisting of zirconium and zirconium alloys;
• a fluid conducting second region including a second material selected from the group consisting of titanium, titanium alloys, and stainless steel;
• and
• a weld region formed by friction welding the first region directly to the second region to form a unitary fluid conducting replacement part,
• wherein the weld region is substantially free of alloys and interdiffusion layers of the corrosion resistant first material and the second material.