We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing facility in China with 5 different branches. For a lot more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828
one.Descriptions
| Title | DIN EPT Precision Black Phosphated EPT Tube |
| Specification | DIN2391-ninety four/C, EN10305-1, EN10305-4, SAE J524, GB/T3639-2009 |
| Steel Grade | St35, St37.4, St45, St52.4, E235, E255, E355 |
| Size | OD:3-76mm, wall thickness: .5-6mm |
| Length | 4m,6m or tailored |
| Shipping Circumstances | NBK(+N), BK(+C), GBK(+A), BKW(+LC), BKS(+SR) |
| Attributes | higher cleanness inside of wall, No deformation soon after chilly bending, no crack right after flaring and flattening, challenging geometrical forming and machining can be recognized |
| Applications | Used in hydraulic program, car Mobile: +86~thirteen 0571 88828 and in the situation the place the substantial precision, brightness, cleanness and mechanical homes of the tube are essential |
| Packing | Plastic film & Knitting Bundled, Plywood Situation or as request |
| Supply Time | twenty-30days soon after get verified |
two. Chemical Composition (ca EPT examination
| Steel Gr. | Steel No. | Chemical Compositions(%by mass) | |||||
| C(max) | Si(max) | Mn | P(max) | S(max) | Al(min)Complete | ||
| St35, St37.4(E235) | 1.0305 | .seventeen | .35 | ≥0.40 | .571 | .571 | .015 |
| St45(E255) | 1.0408 | .21 | .35 | ≥0.40 | .571 | .571 | .015 |
| St52, St52.4(E355) | one.0508 | .22 | .55 | ≤1.60 | .571 | .571 | .571 |
three. Mechanical Homes (at room temperature)
| Steel Gr. | Steel No. |
BK | BKW | BKS | GBK | NBK | |||||||
| Rm MPa |
A % |
Rm MPa |
A % |
Rm MPa |
ReH MPa |
A % |
Rm MPa |
A % |
Rm MPa |
ReH MPa |
A % |
||
| Min | Min | Min | Min | Min | Min | Min | Min | Min | Min | Min | |||
| St35(E235) | 1.0305 | 480 | 6 | 420 | 10 | 420 | 315 | fourteen | 315 | twenty five | 340-470 | 235 | 25 |
| St45(E255) | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
| St52(E355) | one.0508 | 640 | four | 580 | seven | 580 | 420 | ten | 490 | 22 | 490-630 | 355 | 22 |
4. Creation Movement Chart
Important Processes Descriptions:
Cold Rolling
Tube rolling employs compression to lessen the dimensions of seamless tubes. It makes use of one or two sets of rol EPT with continual
cross-part grooves on the circumference of the tube. The rol EPT are driven by rack and pinion gears of distinct
radii along profiled cams, finishing multiple 360º rotations about the tube
Tube rolling is a really exact strategy of minimizing really slim walled and/or smaller diameter tubes, and is frequently employed
as the final cold working action. By rolling, we are capable to accomplish outstanding control above dimensional tolerances
and surface end although also reducing material decline and improving the metal’s microstructure.
Chilly Drawing
Chilly drawing decreases the diameter by pulling the tube by way of a die that is smaller sized than the tube. In get to in shape the tube
into the die, one finish is swaged therefore decreasing the diameter of the major conclude ahead of drawing. Following, the narrowed
stop is passed by way of the die and clamped to a drawing trolley which pul EPT the tube by means of the die.
Annealing
Annealing is used to soften the metal before further cold working or fabrication procedures, and enhances the all round
metallurgical microstructure of the tube. In the course of tube reduction or chilly drawing, it can become hard and fairly brittle.
To be ready to draw the tube once more, stresses formed throughout cold functioning want to be taken out to return the material to its
regular condition.
During annealing the tube is heated to a managed temperature and soak time. By way of this approach the tube stays in
form, but the grains in the composition of the tube reform into a normal unstressed pattern. The ensuing annealed tube is
softer and suited for redrawing
Straightening
Drawing and annealing typically final results in some diploma of bowing, creating a slight bend in the tubing. In purchase to
make the tubes straight, we use a number of roll mechanical straighteners to employ this process, Straightening can
introduce slight alterations to the dimensions and mechanical qualities of the tubing, so these facets are extremely very carefully
managed for the duration of the approach.
five. Inspection and Tests
We examine all plenty of tubing before shipment to make sure that each aspect of the customer’s purchase has been satisfied.
Our in-home inspection and assessments abilities include:
- Chemical Composition Examination
- Visible inspection
- Dimensional inspection
- Area roughness screening
- Eddy Present testing
- Hydrostatic strain testing
- Destructive mechanical testing:
– Yield Strength
– Tensile Energy
– Elongation
– Hardness tests
– bending, flattening, and flaring
All shipments incorporate a full Te EPT Certificate showing all necessary te EPT outcomes and verifying compliance with the order needs.
six. Packing and Shipments
seven. Purposes
We – EPG Team the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing unit in China with 5 distinct branches. For much more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of first products manufacturer’s (OEM) portion quantities or emblems , e.g. CASE® and John Deere® are for reference needs only and for indicating merchandise use and compatibility. Our company and the outlined substitute areas contained herein are not sponsored, accepted, or produced by the OEM.
