| 模具溫控機(恒溫機、模溫機)選型的計算方法 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 1.特殊的情況需進行計算: |
| --------------------------------------------------------------------------------------------------------------------------------- |
| A、求加熱器功率或冷凍功率 KW=W×△t×C×S/860×T |
| --------------------------------------------------------------------------------------------------------------------------------- |
| W=模具重量或冷卻水 KG |
| --------------------------------------------------------------------------------------------------------------------------------- |
| t=所需溫度和起始溫度之間的溫差。 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| C= 比熱 油(0.5),鋼(0.11),水(1),塑料(0.45~0.55) |
| --------------------------------------------------------------------------------------------------------------------------------- |
| B、求泵的大小 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 需了解客戶所需泵浦流量和壓力(揚程) |
| --------------------------------------------------------------------------------------------------------------------------------- |
| P(壓力Kg/cm2)=0.1×H(揚程M)×α(傳熱媒體比重,水=1,油=0.7-0.9) |
| --------------------------------------------------------------------------------------------------------------------------------- |
| L(媒體所需流量L/min)=Q(模具所需熱量Kcal/H)/C(媒體比熱水=1 油=0.45)×t(循環媒體進出模具的溫差)×α×60 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 2.冷凍機容量選擇 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| A、Q(冷凍量Kcal/H)=Q1+Q2 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| Q1(原料帶入模具的熱量Kcal/H)=W(每小時射入模具中原料的重量KG)×C×(T1-T2)×S(安全系數1.5~2) |
| --------------------------------------------------------------------------------------------------------------------------------- |
| T1 原料在料管中的溫度;T2 成品取出模具時的溫度 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| Q2 熱澆道所產生的熱量Kcal/H |
| --------------------------------------------------------------------------------------------------------------------------------- |
| B、速算法(有熱澆道不適用) |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 1RT=7~8 OZ 1OZ=28.3g(含安全系數) |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 1RT=3024Kcal/H=12000BTU/H=3.751KW |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 1KW=860 Kcal/H 1 Kcal=3.97BTU |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 3、冷卻水塔選用=A+B |
| --------------------------------------------------------------------------------------------------------------------------------- |
| A、射出成型機用 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 冷卻水塔RT=射出機馬力(HP)×0.75KW×860Kcal×0.4÷3024 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| B、冷凍機用 |
| --------------------------------------------------------------------------------------------------------------------------------- |
| 冷卻水塔RT=冷凍機冷噸(HP)×1.25 |
硅膠一體式加熱器
管道呼吸器
漢之康過濾器
內插式濾芯
低溫烘干消毒柜
玻纖膜濾芯
等離子紫外線消毒機
RP 系列熔噴濾芯