press platen with controlled cooling unit lp-s-50（20噸、80噸可選）

¨       maximum platen pressure壓力: 50噸

¨       platen sizes (mm) 壓臺(tái)尺寸: 300x300(mm)

¨       max. opening開(kāi)口距離: 150(mm)

¨       press size(cm)  壓機(jī)尺寸: 120x70x176(cm)

¨       net weight 凈重: 950kg

¨       platen heating power 加熱功率: 2x5kw

¨       hydraulic motor power 液壓馬達(dá)功率: 4.0kw

¨       max platen temperature 壓臺(tái)溫度 300⁰c

¨       modern designed steel cabinet with curved sliding front door and control cabinet. the front door is equipped with a large plexiglas window and the control cabinet is recessed so that it is covered by the front door when opened. the sub cabinet is built up from heavy-duty welded rectangular steel tubing and the top cabinet with aluminium profiles. a thick steel sheet table, which covers the entire sub cabinet, is supporting the four hardened and precision ground pillars as well as the hydraulic press piston. the press platens are guided on the pillars with self-lubricating bronze bearings. the top side and rear part of the press is surrounded by a heavy duty stainless steel netting which gives total safety to the operator.

現(xiàn)代設(shè)計(jì)的鋼制外殼包含可滑動(dòng)前門(mén)和控制柜，前門(mén)裝有一塊樹(shù)脂玻璃并且控制柜凹進(jìn)設(shè)計(jì)，這樣前門(mén)打開(kāi)時(shí)就可以蓋住控制柜。控制箱的矩形結(jié)構(gòu)由鋼管焊接而成，上部控制箱由鋁型材制成。四根硬化并精確定位的柱子和液壓油缸由蓋住整個(gè)控制箱的厚鋼板臺(tái)支撐。液壓平臺(tái)在帶有自潤(rùn)滑青銅軸承的柱子上導(dǎo)向滑動(dòng)，壓片機(jī)的頂部和后部由重型不銹鋼網(wǎng)包圍為操作人員提供額外的安全防護(hù)。

¨       dual precision grounded and hard chromed press platens. the platens are built up with a sandwich construction comprising of: 壓臺(tái)可雙精度水平調(diào)節(jié)和并鍍硬鉻，夾心設(shè)計(jì)的加熱壓臺(tái)由以下部分組成：

§       the top steel plate with a thermocouple in-serted into the center part near the surface. 上層為鋼板-中間靠近表面處帶有插入式熱電偶。

§       the intermediate thick copper plate, which contains a bank of special watt-density heater cartridges are ensuring a very even heat distribution over the entire platen surface. 中間厚層為銅質(zhì)，包含一組特殊的按照功率-密度分配的加熱模塊，從而確保在整個(gè)壓臺(tái)表面非常平均的熱量分布。

§       the bottom thick high-density ceramic insulation plate, which ensures minimum heat conducting to the base plate. 下層為高密度陶瓷絕緣厚板，確保只有很少的熱量會(huì)傳輸?shù)交迳稀?/span>

¨       further the heating platens are surrounded on the sides by insulation sheets, which are covered by a stainless steel frame.

加熱平臺(tái)的周邊由熱絕緣片包圍，這些熱絕緣片由不銹鋼支架包覆。

¨       large fully motorized hydraulic system with a fully immersed two-stage vane and gear pump system for very quiet operation. the pumps enable two-speed operation of the press with high closing speed at low pressure and low pressing speed at high pressure. the hydraulic tank has a large volume to ensure long lifetime to oil as well as the hydraulic components. the press piston is double acting to ensure that it will open in the event that the pressing compound get stuck in-between the platens.

大型全電機(jī)驅(qū)動(dòng)液壓系統(tǒng)帶有全埋入兩段式輪葉和齒輪泵系統(tǒng)從而獲得非常安靜的工作效果，齒輪泵在壓片操作時(shí)帶有雙速工作模式-低壓力時(shí)采用高接近速度，而當(dāng)高壓力持采用低壓片速度。大容量的液壓油儲(chǔ)罐確保液壓油和其他液壓部件的長(zhǎng)工作壽命，壓片活塞采用雙模操作確保壓片系統(tǒng)在壓臺(tái)之間粘住時(shí)可以有效打開(kāi)。

¨       two programmable digital electronic pid temperature controllers, one for each heating platen, is driving each a proportional electronic relay connected to the bank of heater cartridges. this system ensures a smooth and even heating of the platens.

針對(duì)每個(gè)熱壓臺(tái)采用兩個(gè)可編程數(shù)字式電子pid溫控器，每個(gè)分別驅(qū)動(dòng)連接到加熱模組上的比例電子繼電器。此系統(tǒng)確保每個(gè)熱壓臺(tái)的平滑穩(wěn)定加熱。

¨       sliding knobs at the left side of the press with steel scale in mm to set the opening distance of the platens during preheating and venting. 壓機(jī)左側(cè)有滑動(dòng)旋鈕，上面帶有精確到毫米的鋼刻度，可用于設(shè)定壓臺(tái)在預(yù)熱和排氣時(shí)打開(kāi)的距離。

¨       pressure regulating knob on lower front panel with pressure gauge showing the platen pressure in mt. the platens pressing pressure can be regulated infinitely from zero to its maximum rated pressure. 下面板上的壓力控制旋鈕帶有壓力表可以公噸顯示壓力，壓臺(tái)壓力從零到值之間無(wú)級(jí)可調(diào)。

¨       （optional）single set of pressing platens with both heating and cooling on the same platens. the two platens are built up with the same sandwich configuration as described for the standard heating platens but with additional machined zigzag channels in the middle layer for water-cooling. the press will automatically switch over to cooling when the heating cycle is completed by means of a solenoid valve, which opens up the water flow when the heating time has elapsed. thus the press has fully automatic pressing cycles as following:

(可選項(xiàng))在一套壓臺(tái)上同時(shí)帶有加熱和冷卻系統(tǒng)的壓臺(tái)配置。兩個(gè)壓臺(tái)都是標(biāo)準(zhǔn)壓臺(tái)的夾層結(jié)構(gòu)，但在中間層增加了額外的蛇型水冷通道。這樣當(dāng)熱壓過(guò)程結(jié)束后壓機(jī)會(huì)通過(guò)打開(kāi)螺旋水閥自動(dòng)切換到冷卻程序。這樣壓機(jī)就可以以以下的全自動(dòng)方式操作：

1.  preheating with press platens near closed position在壓臺(tái)接近位置的預(yù)加熱。

2. pressing at full preset pressure and heat. 以預(yù)設(shè)的壓力和溫度進(jìn)行壓片操作。

3.          venting = short opening followed by immediate closing of the platens. 排氣 – 短暫打開(kāi)后迅速閉合熱壓臺(tái)。

4.  pressing at full pressure until set time has elapsed. 以全壓力進(jìn)行壓片操作直至達(dá)到設(shè)定時(shí)間。

5.  cooling at full pressure immediately after the heat pressing cycle has elapsed. 當(dāng)加熱循環(huán)結(jié)束后立刻以全壓力冷卻。

6.  opening of press platens after cooling time has elapsed. 當(dāng)冷卻時(shí)間結(jié)束后自動(dòng)打開(kāi)壓機(jī)。

¨       （option）astm (iso) cooling system.where the platens are cooled with at a controlled rate of between 15ºc ± 2ºc per minute. this controlled cooling rate is required for making test sheets in type i, ii, iii and iv polyethylene and other thermoplastic resins. this method requires heating and cooling on the same platens. this controlled cooling is done with special “ramping” controllers coupled to solenoid valves on the cooling system. the ramping controllers can be set to any cooling rate between 1ºc to 20ºc but the maximum cooling rate is depending on the temperature of the cooling water supply. if the customers cooling water supply is not constant in temperature or too hot, we then recommend to install a designated water chillers.

(可選項(xiàng))astm (iso)冷卻系統(tǒng)。壓臺(tái)冷卻時(shí)以一定的受控速率冷卻（每分鐘15ºc ± 2ºc），此控制冷卻速率要求在對(duì)i, ii, iii 和 iv 型聚乙烯和其他熱塑性樹(shù)脂的樣片測(cè)試時(shí)采用。此方法要求采用同一壓臺(tái)同時(shí)帶有加熱和冷卻功能，此控制冷卻功能是通過(guò)同冷卻系統(tǒng)的螺旋閥相聯(lián)接的特殊“斜線(xiàn)”控制器實(shí)現(xiàn)的。斜線(xiàn)控制器可以設(shè)定為從1ºc 到 20ºc的任何冷卻速率，但冷卻速率取決于冷卻水供應(yīng)的溫度，如果顧客供應(yīng)的冷卻水溫度不穩(wěn)定或太熱，那么我們建議安裝特定的水冷卻裝置。