D2 is cold work die steel

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HOW TO USE THE SAWBLADE

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Introduction to D2 

D2 is cold work die steel. D2 has high carbon and high chromium. It is cold mold steel, widely used in China, is Lystenitic steel, with high harden ability characteristic, quenching and high wear resistance; good high temperature oxidation resistance, good rust resistance after quenching and polishing, and small heat treatment deformation.

Application:

Scope of use: cold work mold steel, rolling teeth, tooth rubbing rub steel bead template, punching mold, round cutting blade, deep oil pull mold, wear resistance demand of high plastic mold.

Chemical composition 

D2 (Similar as 1.2379)

%

C

Si

Mn

  S   P

Cr

Mo

V

Min

1.45

0.1

0.2

11.0

0.70

0.70

Max

1.60

0.6

0.6

0.030 0.030

13.0

1.00

1.00

Heat treatment

Hardness for factory status:HBS ≤ 255

Hardness after quenching :HRC 58-62

Heat treatment: after spherical annealing 1000~1050 degrees oil quenching (HRC63), and then according to the required performance tempering, low temperature tempering 100~250 degrees, HRC61~63, suitable for high hardness, high toughness working parts

Or high temperature 500~550 tempering 3 times, HRC58~62, tempering in 400~550 degrees range, the mold will not reduce hardness, suitable for high hardness working part used in this temperature area.

Product:  Flat bar

1. Hot rolling small flat bar

thickness 1..6-40mm , width 16-200mm  length 2000-4000mm  (photo)

2. Hot rolling large flat bar

thickness 10-40mm , width 300-800mm  length 1500-3000mm  (photo)

3. Forging flat bar

thickness 40-200mm , width 300-1000mm  length 3000-8000mm  (photo)


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  • The use and maintain of the sawblade

    ◎ The carbide tip of sawblade is very sharp, so process of using must be prevent the carbide tip.

    ◎ PeriodicaI cleaning and support the machine,the spindle’s running tolerance must be less than h7.

    ◎ The flanges must be parallel to each other,must be of the same diameter 1/3 of the sawblade’s diameter(formuIti—rip saw blade is 1/2.

    ◎ When instaIIion the sawbIade,it shaII be 5-6 teeth higher than board surface.

    ◎ Before operation,check the firmly of the sawblade,be sure nobody in front of the machine. Do not feed of operation check whether the machine is good for operaiton. Periodical check the function of the machine,the certicaI jump is less than ±0.02MM,and the flap is less than ±0.01.

    ◎ After continuous use,must be removed and cleaning the sawblade,get rid of the resin and sawdust of the sawblade of both sides.Other wise it would beinfluence the effect of using the sawblade.

    ◎ Deposit of the sawblade,must not be layer the sawblade,it is putted in the originaI package inside.

    The renovate of the sawbIade

    ◎ The renovate of the carbide sawblade While it no longer sharpen and the horizontaI piece coarseaess. The power of using sawblade machine obviously Increase. When process materiaI,the materiaI appearred burst. The carbide tip exhaust more than 0.02MM.

    ◎ For the renovate the sawblade,it shouId be grinding by the a formal company, so be sure the quality of the sawblade after renovating.

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