The standard variable area flowmeter is composed of a measuring tube and a on-site indicator. On-site indicator can be optional to install an additional electric component, which is suitable to measure liquid and gas.
This variable area flowmeter adopts the variable-area measuring principle and the measuring component is composed of a conical measuring tube and a floater. The floater can move up and down freely in the conical measuring tube, to change the flow area in the tube. The vertical position of the floater in the conical measuring tube will change with the change of flow, the floater position will be transmitted to the indicator dial via magnetic transmission system, and it can indicate the flow value on site, and also output signal to realize remote display and control.
This variable area flowmeter can be widely used in the flow measuring process of complicated and severe environmental conditions such as petroleum, chemical engineering, power generation, pharmaceuticals, food and water treatment industries, as well as various medium conditions.
Specifications
Measuring range |
Water (20ºC)   6~150000L/h Air (101.3kPa 20ºC) 0.05~4000m3/h |
Measuring range ratio | 10:1 (20:1 for special type) |
Accuracy |
1.5 grade 1.0 grade |
Working Pressure |
DN15~DN50Â Â PN4.0MPa (25MPa for special type) DN80~DN100Â Â Â Â PN1.6MPa (16MPa for special type) |
Jacket pressure rating | 1.6MPa |
Media Temperature |
Sandard Type: -80ºC~+220ºC Hgh temperature type: 400ºC Lning PTFE type: ≤85ºC |
Ambient Temperature |
Pinter type: -40ºC~+120ºC Eectric remote transmission type: -30~+65ºC, |
Media Viscosity |
DN15: ≤5mPa.s (H15.1~H15.3): ≤30mPa.s (H15.4~H15.9) DN25: ≤250mPa.s DN50~DN150: ≤300mPa.s |
Liquid crystal display (LCD) |
Idication range for instantaneous flow rate: 0~50000. Idication range for accumulative flow rate: 0~99999999. |
Output |
Sandard signal: two-wire 4~20mA Pulse signal: minimum interval is 50ms  |
Alarm output |
Instantaneous flow rate alarm for upper limit or lower limit.   Sandard type: open-collector output (MAX100mA, 30VDC Inner impedance 100Ω. Secial type: relay output (The maximum contact capacity is 5A AC250V) |
Power supply |
Sandard type: DC24V (DC10.8V~DC36V)Â AC type: AC220V (AC85V~AC265V) |
Connection type | Sandard type: DIN2501 flange    |
Electrical Interface | M20×1.5, PG11,1/2″NPT15 |
Protection Grade |
IP6516, explosion-proof sign: Intrinsic safety type: ExiaIICT3~6Â Â Â Â |
The domestic current situation of the die-casting mould
Die Casting Mould industry has developed rapidly in our country, the total output growth significantly, domestic die casting mold production after the United States, has become the second in the world, become the veritable die-casting superpower. It can have such achievement because of our country with unique broad market advantages and relatively cheap labor force. Depend on very obvious price in the international trade market, we produced the die casting mould which occupies a bigger superiority, according to the situation, in the future Chinese die casting industry development prospects are very broad.
The designing of die
casting tooling
1, According to the materials, shape and precision product, analyze technology,
decide of the process.
2, Confirm the location of product in the mold cavity. Analyze parting surface,
overflow system and the gating system.
3, Design the various activities of the core are assembled and fixed method.
4, Design the core-pulling distance and force.
5, Design the ejection device.
6, Confirm the die casting machine, design the mould base and the cooling
system.
7, Checking the mould size and die casting machine, drawing the process
flowchart and component of die casting mold.
8, Design is complete.
Die-casting mould making flowchart
Aluminum injection mould material and materials and its properties
Material of aluminum die casting mould: H13, ASSAB DIEVAR, SKD6;
Mould base: #45 steel, standard mould base (LKM);
Hardness after treatment: RHC 48~52;
Standard Configuration: Cooling system;
Tolerance: 0.1mm;
Machining equipment: CNC gantry milling machine, middle-speed WEDM machine, slow-feeding EDM, die spotting machine;
Mould life: 50000 shots ~ 100000 shots;
Lead time of die casting mould: 40 days-60 days.
What is the Moldflow analysis, this conception derived fromtaiwan. it's a precess through the computer for injection molding simulation by data simulate software, and get data result. Then assess the feasibilty of the mold program through these results to perfect mold and production designation.The common software for plastic mold such as moldflow, moldex 3D and so on. And the common software for Aluminum Die Casting Parts such as PROCAST, FLOW 3D and so on.
The conventional materials of die casting core, insert, slider
Production of die casting mould and QC control
Die Casting Mould
Aluminum Die Casting Mould, Zinc Die Casting Mould, Die Casting Mould, Die Cast Mold
NINGBO BEILUN LEMA MACHINERY TECHNOLOGY CO.,LTD , http://www.china-lema.com