Repair Of Screw Barrel
Zhoushan Intai Screw Manufacture Co.,Ltd. is a leading high-quality Repair of screw barrel manufacturer. By virtue of over 20 years of professional experience, INTAI has been growing at a steady pace and has been always committed to
creating a world top provider of Repair of screw barrel. It owns a series of unique functions for R&D, design, production and aftersales which enable the products to be distinguished from others.
We only use first-class and check every production procedure to ensure precise production of every size. A final complete inspection will be performed before dispatch.
If you interest in our products, please click our website
1.The broken screw should be repaired according to the actual diameter of the barrel. A new screw should be manufactured based on the designed outer diameter tolerance according to the normal clearance with the barrel.
2. The thread surface of the worn screw with shrinking diameter should be hot sprayed and painted with abrasion-resistant alloy after treatment, and then be ground to designed dimension. This repair is generally finished in a rofessional
spray painting factory, and usually costs less.
3. The thread of a worn screw should be bead welded with abrasion- resistant alloy. It should be bead welded for 1-2mm thick according to the degree of wear and then be grounded to designed dimension. The abrasion-resistant alloy is made
of materials like C, Cr, Vi, Co, W and B, which can improve the screw's resistance to wear and corrosion. Generally, this repair will cost much in a professional bead welding factory. Thus it is usually not adopted unless otherwise
specified.
4. Hard chromium plating on surface can also be used for the repair of screw. Chromium is resistant to wear and corrosion, but hard chromium plating easily fall off.
The inner surface of a barrel has higher hardness than a screw. Thus it is not as easily worn as the screw. If the inner diameter of the barrel is increased as time goes by, the barrel might be scraped. Methods:
1. If there is still a certain nitriding layer in the barrel with diameter increasing due to wear, bore a hole inside the barrel, grind the barrel to a new diameter, and then make a new screw according to this diameter.
2. Trim the inner diameter, cast the inner side with alloy again at 1-2mm thick, and then process it to the designed dimension.
3. Generally, the homogenizing section of a barrel is easily worn. For that, trim the involved section (5-7D long) via boring, and install a nitrided alloy steel sleeve. The diameter of inner hole should be determined based on that of
the screw. Normal fit clearance should be reserved for professing.
Location: Zhoushan, China
Business Type: Manufacturer, Exporter
Brands: INTAI
Certificate: CE,ISO9001
Model: OEM
Terms of payment and delivery: pay 30% deposit before producing and70% balance against copy of documents
Minimum order quantity: 100sets
Price: Consultation
Packing details: Bag package and box package
Delivery time: 25days
Payment method: Consultation
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