65Mn Spring Steel Oil Quenching Shaped Spring Steel Wire 1.4mm Above SpecificationsDelivery term:The date of payment from buyers deliver within days
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With wide experience and expertise, Friend Metal is engaged in the developing, manufacturing and marketing of 65mn spring steel oil quenching shaped spring steel wire 1.4mm above specifications ASTM-A230-99, ASTM-A401, EN10270-2, JIS G3561. As a professional manufacturer, we now brings you high quality various steel wires made in China which comes in high strength, well toughness and excellent wearing resistance. We also welcome your customized orders.
Oil - hardened steel wire - Practical procedure
Line - anaerobic heating - oil quenching - tempering - water cooling - coated anti-rust oil - The line
According to the requirements of a single verification process oil quenched steel semi-finished steel, specifications,
Unqualified material is not put into production;
Lifting should be to ensure smooth, put the line smooth, wear the wire when used as a lead wire.
In order to minimize the furnace pipe and the furnace mouth scaling, to try not to use rusty wire, not into the thin wire; also
To minimize the dirt on the wire, so the wire into the stove before going through the decontamination device.
(B) of the furnace temperature set by the process requirements, should ensure that there are protective gas furnace tube,
, That is, the furnace tube outlet should be a fire. Protective gas for
Liquid ammonia in the catalyst under the action of heating
Of hydrogen and
Of nitrogen. which is:
+ & Gt;
Lt; 0 & gt; C
Lt; 0 & gt; C
In order to minimize the stove fouling, consider the use of slotted steel tube in the mouth, and often turn, descaling.
(C) oil quenching
Steel oil quenching, should ensure that the oil surface above the steel ≥
, But can not be quenching oil overflow tank, but can not enter the furnace
Body, to ensure production safety,
Steel wire out of the tank,
Should be attached to the oil on the wire should be wiped clean. Often observed quenching oil
Box oil level, not enough time to add.
In order to minimize the quenching oil on the wire into the tempering furnace, increase the oil removal device.
Furnace temperature set according to process requirements, the wire can not be staggered in the furnace, to comb smooth, lead pot entrance, as the wire with
Residual oil, a long time will be on fire, dry powder extinguishing agent extinguished, agglomeration of the covering agent should be removed, add new.
(5) water cooling
Steel wire tempering should ensure that water cooling, and residual water drying, so as to avoid steel rust.
(6) anti-rust oil
In order to prevent the rust of steel wire, steel wire should be evenly coated with a layer of anti-rust oil in the book.
(7) close line
Take-up speed set according to process requirements, wear the first use of waste silk should be all cut off, due to failure shutdown should also be cut off furnace midline,
All electrical connections in the production process must be cut off.
When the wire is pulled off, to cut off the wire diameter failed parts.
Wire should be guaranteed that the dead wire does not bend,
No mechanical scratches, disc shape should be structured; in the completion of this class production of steel wire packaging,
Cm long tail wire for testing, and the tail wire to stay out
5 to 10
Cm for reference purposes
, Hang tags,
Do the original record.
So that each wire are detected, testing items for the wire diameter check, tensile strength, shrinkage, and other necessary items
Do the original record.
After testing to check the wire diameter on the label, write on the tensile strength, date.
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