High Efficient Operation Metal Sintering Dewaxing Furnace For Lab And Industrial

Item No.

Parameter

Required value

Service life

6000 cycles / 20-year service life

Useful space (load size with parts)

Max. charge weight (including graphite furniture for part support)

Max. design temperature

Max. working temperature

Max. working pressure

Ultimate vacuum

1 Pa(After heating,in cold,empty, dry condition)

Vacuuming rate

The vacuum degree down to 3 Pa to be reached within 40min after the start of the pump,the vacuum degree can get to 1pa after vacuuming continually within 30min (After heating,in cold,empty, dry condition)

Vacuum leak rate (average over 24 h)

3 Pa per hour (After heating, in cold,empty, dry condition)

Binder collection %

≥ 98% (dewaxing in Ar, total 10kg wax, avg. max. 3 times)

Max. heating rate

8℃/minute in empty furnace

5 ℃/minute in fully loaded furnace

Pressurization time up to 55 bar

≤ 20 minutes :At Heating,empty or fully loaded at furnace temperature of1450-1550deg.C,Ar pressure minimum 120 bar(Reducing valve should prepared by customer itself)

Cooling time

≤ 7 h (1480℃ down to 100℃ with fully loaded furnace, at cooling water temperature ≤28℃)

UPS-powered operation time for control electronics

UPS powers the indicators and controls of the furnace in case of blackout; UPS-powered operation time ≥ 60 min

Temperature uniformity

≤ ±7℃. Measured by sintering of the FERRO ceramic shrink rings in the empty furnace under vacuum at 1450℃ on graphite trays. Can be soak in process (FERRO shrink rings should be supplied by the buyer.Suggest grade of 334,because the test ring are multifarious,The test only as reference,take below item3.16 as main test standard)

Parameter uniformity in sintered products

To be measured by sintering of the witness YG8 or YC40 grade hardmetal samples (with paraffin or PEG binder): max. magnetic saturation scatter ≤ ± 0,20%, max. coercivity scatter ≤ ± 0.3kA/m. Hardmetal witness plates to be delivered by the Buyer, the quality of the samples to be confirmed by the Seller.

Furnace temperature measurement mode

Single thermocouples WRe5-26 in double-TC tubes

Temperature control mode

3 zone temperature control

H₂ during debinding

Flow range: 1 to 150 standard Liters per minute (slm). Flow control resolution (increment): 1slm.

Dimensions and footprint of the furnace

As per Appendix 2

Functions

Vacuum dewaxing, H₂ dewaxing, vacuum sintering, partial pressure sintering, gas pressure sintering, vacuum cooling, controlled Ar pressure cooling, fast cooling