Model Number: HSH-7.94BTR
Applicable Material: Polyester Knitted Fabric
Category: Sewing Machine
Overlock Stitch Type: Double Wire
Nailcatcher Machine Stitch: Lock Stitch
Buttonhole Machine Type: Flat Head Buttonhole Machine
Type: Garment
Brand: Desheng
Packaging: 1PC/Color Box, 12PCS/Color Box
Origin: Ningbo, China
Compatible Models: KHS12-RYP/HSH-ATR(MTQ), HSH-7.94ATR, HSH-7.94A(MTQ), HSH-7.94A(MTQTS), HSH-7.94ATR(MTQ), HSH-7.94ATR(MTQTS), HSH-7.94AR, HSH-7.94B, HSH-7.94B(TS), HSH-7.94BTR, HSH-7.94BTR(TS), HSM-A, HSM-A1, HSM-A(MQTS), HSM-ATR(MTQ), HSM-ATR(MTQTS), HAM-B1H, HSM-B(Q), HSM-B(Q)TR, HSH-31, HSH-31(6), HSH-31(12)
As a trusted Chinese supplier, we specialize in high-quality sewing machine parts, including the popular HSH-7.94BTR hook. Our products are widely used in the textile and garment industry, offering durability, precision, and reliability. Whether you're looking for replacement parts or bulk orders, we provide competitive pricing and fast delivery.
If you need further assistance or have specific requirements, feel free to contact us. We are here to ensure your satisfaction with every order. Choose us as your reliable partner in the sewing machine parts market.
Special Iron Sulfide For Resin Grinding Wheels
Application of Ferro Sulfur for the manufacturing of cast iron:
Low sulfur content in gray cast iron molten iron is harmful: poor inoculation effect, poor graphite morphology, and poor cutting performance
When melted in a foundry, the residual sulfur content decreases, mainly due to the use of scrap steel and low sulfur.
The content contained has been determined, and if the sulfur content is below 0.04%, melting will not easily react with the inoculant.
Therefore, it is necessary to use sulfur addition agent to increase the sulfur content, in order to maintain the sulfur content within the range of 0.05% to 0.12%.
Within this range, sulfur shortens the length of graphite, blunts its ends, bends its morphology, and improves its mechanical properties. When the sulfur content is below 0.05%, sulfur addition treatment must be carried out.
According to metallographic analysis, sulfur in molten iron exists in a special form, so it is necessary to use a specialized sulfur addition agent when adding sulfur. Do not use sulfur or other sulfur containing minerals as this can greatly damage the internal structure of the casting!
For ductile iron, a low sulfur content (below 0.008%) in the raw molten iron is also unfavorable. The normal range of 0.010% -0.014% is better. However, for electric furnace melting, it is necessary to use sulfur oxygen inoculants within this range to slightly increase sulfur and improve the activity of molten iron
The use method of sulfur addition agent: During the production process of the electric furnace, a small amount of iron is added to the furnace, and then sulfur addition agent with the particle size of 8-25mm is added to the furnace according to the sulfur demand. Then add iron to press the sulfur addition agent for melting, with an absorption rate exceeding 99%
Specification of sulfur addition agent: -150 mesh -325 mesh 10-30 mesh 10-50 mesh 5-15mm 200 mesh 325 mesh 400 mesh 95% pass
Golden Resin Grinding Wheel,Used in the Grinding Industry,Abrasive Iron Sulfide
LUANCHUAN COUNTY HENGKAI METALLURGICAL MATERIALS SALES CO.,LTD , https://www.pyritechina.com
